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2011-2012Annual Report

Department of Nuclear Engineering and Radiation Health Physics

Department of Nuclear Engineering& Radiation Health Physics

3451 SW Jefferson WayCorvallis, OR 97331

phone: (541) 737-2343fax: (541) 737-0480

ne.oregonstate.edu

ContentsSUMMARY OF ACTIVITIES .............................4-5TENURE & RESEARCH FACULTY ....................6-9STATISTICAL SUMMARY ..............................10-15PUBLICATIONS............................................16-35RESEARCH AREAS.......................................36-39FACILITIES..................................................40-41RESEARCH PARTNERS.................................43

4

Who We Are

Housed in the OSU Radiation Center, the Department of Nuclear Engineering and Radiation Health Physics seeks to educate students to become nuclear engineers, health physicists, radiochemists, and medical physicists with the ability to achieve the highest standards of the profession and to support the needs of industry, government, the nation and the world. With nearly 900 living alumni and approximately 350 currently enrolled students, we are doing just that.

Throughout this annual report you will see a quantification of our efforts in education and research. During the past two years we’ve welcomed new faculty members, constructed new facilities, and added accredited degree programs. You’ll find the NERHP you thought you knew has changed in some ways, yet the spirit and tradition of our department remain constant.

Education

Student Population Growth Our student population has been growing drastically in the past five years; in fact many of our introductory courses have outgrown the classroom facilities at the Radiation Center. While it’s a good problem to have, it’s still a concern as the popularity of our degree programs grow we’ll need more space to educate our students. Both graduate and undergraduate enrollment has seen upward trends, as have number of degrees awarded each academic year.

Expanded Courses and E-campus In the past two years our course offerings have expanded to include courses taught at the Radiation Center, as well as e-campus courses in radiation health physics, and courses in graduate medical physics taught at Oregon Health & Science University. Overall OSU is ranked 8th in the best e-campus universities in the country.

Summary of Activities

5

Growing Doctoral Programs At the pinnacle of our department are the doctoral students and candidates. At present, we have the highest enrollment in the doctoral programs we have ever seen. In the publications section of the report you’ll find abstracts of graduate theses and dissertations completed in the past two years.

Research

Research Areas Our research efforts span across nuclear engineering and science disciplines to include: nuclear engineering, computational physics, radiation health physics, radioecology, radiochemistry, and medical physics. We’re known for large-scale thermal hydraulic test facilities of nuclear systems including light water reactor designs such as the Westhinghouse AP1000 and small modular reactor systems. NuScale Power Inc. got their start here and our continued relationship provides many research opportunities for our students and faculty. Our newest facility, the High Temperature Test Facility (HTTF) has received national attention as we explore the possibilities of Very High Temperature Gas Reactors (VTGRs).

Radiochemistry We’re one of the few programs in the nation offering courses in radiochemistry, in a partnership with the OSU Department of Chemistry; our researchers are examining the challenges of modern nuclear society such as advanced reprocessing of spent fuel, and determining fundamental properties of actinoid and lanthanoid elements. Medical Physics The newly accredited Oregon Medical Physics Program is a partnership between Oregon State and Oregon Health & Science University to educate medical physicists at the graduate level. As the only accredited program in the Northwest, our mission is to help build the profession in this geographical region. Our researchers are focused on interdisciplinary research, in one project we are applying quantum computer science to medical physics dose calculations. We are also examining methods to improve measurement of patient dose, through the use of nanodot dosimeters. Our faculty members are connecting with colleagues nationally and internationally, to foster collaborative research efforts that engage our students and benefit patients with improved treatment protocols.

RadioecologyOur radioecology research means that we are one of a handful of academic institutions nationwide that routinely study the movement of radionuclides in the environment. We have partnered with the Savannah River National Laboratory to provide research opportunities for students and faculty. Our students are examining new ways to sequester radionuclides and improved methods to calculate radiation dose to the publics. Working with faculty and staff in the College of Veterinary Medicine and the College of Earth, Ocean, and Atmospheric Sciences we have found new ways to measure and calculate radiation dose to animals and plants. Radiation health physics researchers discovered traces of cesium from Fukushima in Pacific Albacore Tuna, something previously thought to be impossible. While the miniscule amounts of cesium don’t present a health concern, the trace amounts could help substantiate many wildlife and fisheries theories about the Albacore populations.

Service and Engagement International Partnerships OSU NERHP experts have been part of conversations on nuclear science that span the globe. Partnering with the Warsaw University of Technology we are helping build a joint Ph.D. program in nuclear power engineering that will provide the experts Poland needs for their future in nuclear power. In addition to these efforts, we’ve also built strong international relationships with Russia and China as we collaborate to further technology and education.

Courses and Conferences We were proud to host the 2012 IAEA Course on Natural Circulation Phenomena and Passive Safety Systems in Advanced Water Cooled Reactors and the 2011 International Conference on Transport Theory. We look forward to hosting the IAEA International Collaborative Standard Problem (ICSP) on Prediction of Hydro-Mechanical Behavior in Reactor Core with a Plate-type Fuel Assembly in August 2013.

6

Abi T. FarsoniAssistant Professor. B.S. Applied Physics (1992), University of Tehran; M.S. Nuclear Engineering (1999), Sharif University of Technology; Ph.D. Radiation Health Physics (2006), Oregon State University. Field of interest: development of advanced radiation detectors for imaging and spectroscopy, designing compact and high-speed digital pulse processors and associated firmwares (in FPGA) for real-time radiation measurement and gamma ray imaging, and development of multilayer scintillation (phoswich) detectors for homeland security. At Oregon State University since 2006.

David M. HambyProfessor. B.S. Physics (1984), Mercer University; M.S. Health Physics (1986); Ph.D. Health Physics (1989), University of North Carolina. Fields of interest: radiation dose assessment, skin dosimetry, radiation instru-mentation, environmental health physics, environmental transport, fate and transport model analysis, beta spectroscopy, radiation risk. Environmental Transport Section, Savannah River Laboratory (1989-1994); As-sistant Professor, University of Michigan School Public Health (1994-1999); Faculty Appointee, Argonne Na-tional Laboratory (1995-present); Associate Editor, Health Physics (1996-present); Editorial Advisory Board, Environmental Monitoring and Assessment (1999-present); Technical Expert, International Atomic Energy Agency (IAEA) in Lithuania (1998); scientific committee member, National Council on Radiation Protection (NCRP). Member: National Health Physics Society, Radiation Research Society; Fulbright Scholar awardee. At Oregon State University since 1999.

Wade R. Marcum Assistant Professor. B.S. Mechanical Engineering (2006); M.S. Nuclear Engineering (2008), Ph.D. Nuclear En-gineering (2010), Oregon State University. Fields of interest: experimental and computational thermal hydrau-lics, reactor safety, multi-physics experimentation and computation, fluid structure interactions, hydro-me-chanics, and computational fluid dynamics. Faculty Advisor, American Nuclear Society. Member of: American Nuclear Society, American Society of Mechanical Engineers. Editorial Board Member, Journal of Nuclear Energy Science & Power Generation Technology. At Oregon State University since 2010.

Tenure & Research Faculty

New Faculty Members

Krystina TackDirector of Medical Physics. B.S. Pre-Medicine (2002), Oregon State University; M.S. Radiation Health Phys-ics (2006), Oregon State University; Ph.D. Medical Physics (2010), University of Texas Health Science Center at San Antonio. Fields of interest: prostate brachytherapy, high dose rate (HDR) brachytherapy, clinical trials (correlation of dosimetry with clinical outcomes). Member of: American Association of Physicists in Medicine (AAPM), American Brachytherapy Society (ABS), American Society for Radiation Oncology (ASTRO), Society of Directors of Academic Medical Physics Programs (SDAMPP). At Oregon State University since 2012.

Current Faculty

7

Jack F. Higginbotham (currently on indefinite assignment to College of Science)Professor. Director, Oregon Space Grant, Director, Space Studies, College of Science. B.S. Nuclear Engineering (1981); M.S. Nuclear Engineering (1983), Ph.D. Nuclear Engineering (1987), Kansas State University. Fields of interest: radiation shielding, radiation protection, activation analysis, radiation detection, nuclear instrumen-tation. Associate Director, Oregon Space Grant (2000-2002); Associate Dean, OSU Graduate School (1998-2000); Reactor Administrator (1994-1998), Senior Health Physicist (1987-94), OSU Radiation Center; Supervi-sor, Kansas State University research reactor. Member, Health Physics Society, American Nuclear Society. Professional Progress Award, Kansas State University; Elda Anderson Award, Health Physics Society (1997); Loyd Carter Award (1997) OSU College of Engineering Teaching Award; Academic Dean, Health Physics Society Summer School; Chair, Part II Panel, American Academy of Health Physics; President, Cascade Chapter, Health Physics Society. Certified Health Physicist. At Oregon State University since 1987.

Kathryn A. Higley Head, Department of Nuclear Engineering and Radiation Health Physics; Professor. B.A. Chemistry (1978), Reed College; M.S. Radiological Health Sciences (1992), Ph.D. Radiological Health Sciences (1994), Colorado State University. Fields of interest: human and ecological risk assessment, environmental pathway analysis, environmental radiation monitoring, radionuclide and hazardous chemical transport, radiochemistry, neutron activation analysis, nuclear emergency response planning, and environmental regulations. Health physicist, radioecologist (1976-1979), Trojan Nuclear Power Plant; Environmental Health Physicist (1980-1989), Bat-telle Pacific Northwest Laboratory. Technical participant IAEA BIOMOVs II (Biospheric Model Validation Study); IAEA Modaria, BIOPROTA. Past president, Environmental Section Health Physics Society (1998-1999), National Council on Radiation Protection Scientific Committees, Member, ABHP Panel of examiners. Elda E. Anderson Award Winner (1995). Certified Health Physicist. Member of: Health Physics Society, International Union of Radioecologists, American Nuclear Society. At Oregon State University since 1994.

Andrew C. Klein Professor, Director of Education, Training and Research Partnerships at Idaho National Laboratory. B.S. Nuclear Engineering (1977), Pennsylvania State University; M.S. Nuclear Engineering (1979), Ph.D. Nuclear Engineering (1983), University of Wisconsin. Fields of interest: Nuclear Systems Analysis and Design, Fusion Engineering and Design, Space Applications of Nuclear Technology, Radiation Shielding and Health Physics Editor, Nuclear Technology, (2010-present); Director, Educational Partnerships, Idaho National Laboratory, Idaho Falls, ID, on loan from Oregon State University, (2005-2009); Advisory Editor, Annals of Nuclear Energy, (1996-present); Board of Directors, American Nuclear Society, (2012-2015); Board of Managers, Battelle Energy Alliance/Idaho National Laboratory, (2011-present); Member, National Nuclear Accrediting Board, Institute for Nuclear Power Operations, Atlanta, GA, (2010-present); Member, Facility Subcommittee, Nuclear Energy Advisory Commit-tee, U.S. Department of Energy, (2010-present); Member, Board of Directors, Foundation for Nuclear Studies, Washington, DC, (2009-present); Editorial Committee, International Journal of Nuclear Science and Technology (2003–present); Space Science Advisory Committee, National Aeronautic and Space Administration (2003-2006); Board of Directors, American Nuclear Society (2000-2003); Board of Directors, National Space Grant Alliance, Inc. (2001-2002); Nuclear Energy Research Advisory Committee, U.S. Department of Energy (2001-2005); Editorial Advisory Board, Nuclear Technology (1997-present); Advisory Editor, Annals of Nuclear Energy (1996-present); William C. Foster Fellow U.S. Arms Control and Disarmament Agency (1996); Department Head, Department of Nuclear Engineering and Radiation Health Physics, Oregon State University (1996-2005); Director, Radiation Center, Oregon State University (2002-2005); Director, Oregon Space Grant Program (1993-2002). Registered Professional Engineer (Nuclear). At Oregon State University since 1985.

8

Todd S. Palmer Professor. B.S. Nuclear Engineering (1983), Oregon State University; M.S. Nuclear Engineering (1989), Ph.D. Nuclear Engineering and Scientific Computing (1993), University of Michigan. Fields of interest: numerical techniques for particle transport and diffusion, computational fluid dynamics, reactor physics, general nu-merical methods, nuclear criticality safety, Monte Carlo methods, transport in stochastic mixtures. Physicist, Defense Sciences, Lawrence Livermore National Laboratory (1991-1994). Member, American Nuclear Society. Loyd Carter College of Engineering Teaching Award (2001). At Oregon State University since 1995.

Alena PaulenovaAssociate Professor. Director of Laboratory of Transuranic Elements. Ph.D. Physical Chemistry (1985) Mos-cow/ Kharkov State University; M.S. Radiochemistry (1991), Comenius University. Fields of interest: Separation and speciation chemistry of actinides and fission products; Chemistry of fuel cycle, reprocessing and waste form of used nuclear fuel; Mobility and speciation of radionuclides in natural bio-geochemical systems; Nano-radiochemistry and nuclear material science; Radiochemical sensors; Environmental and biomedical appli-cations of radiotracers; Radiation chemistry and post-irradiation processes. Joint faculty in Idaho National Laboratory with the Radiochemistry and Aqueous Separation Division (since 2008). INEST Fuel Cycle Core Committee member (since 2009); International Advisory Board for the Global 2013 conference, Conference on Separation of Ionic Solutes (2003-present); General Manager, “Foundation Curie” (1996-2000); Executive Secretary of International Conferences: Cyclotron Produced Radiopharmaca (1997) and NATO AIW Applications of Natural Sorbents in Waste Treatment (1998). Division Nuclear Chemistry and Nuclear Technology Division of the American Chemical Society (member and ACS summer school reviewer). Editorial board of Journal of Radioanalytical Nuclear Chemistry; reviewer for Inorganic chemistry, Analytical chemistry, Environmental Science and Technology. At Oregon State University since 2003.

Steven R. ReeseDirector, Radiation Center. B.S. General Science (1991), Oregon State University; Ph.D. Radiological Health Sciences (1997), Colorado State University. Fields of interest: radiation protection, activation analysis, radia-tion shielding, neutron radiography and dosimetry. External dosimetry section (1991-1993), Battelle Pacific Northwest Laboratory; OSU Radiation Safety Office (1997-1998). Reactor Administrator (1998 -2005), OSU Radiation Center. Director, OSU Radiation Center (2005-present). Member, Health Physics Society, American Board of Health Physicists, and American Nuclear Society. At Oregon State University since 1997.

José N. Reyes, Jr. (currently on assignment at NuScale Power Inc.)Professor; Henry W. and Janice J. Schuette Chair in Nuclear Engineering and Radiation Health Physics, Direc-tor, Advanced Thermal Hydraulics Research Lab. B.S. Nuclear Engineering (1978), University of Florida; M.S. Nuclear Engineering (1984), Ph.D. Nuclear Engineering (1986), University of Maryland. Fields of interest: thermal hydraulics, multi phase fluid flow, scaling analyses, ALWR Safety, fluid structure interactions, reac-tor system design, and probabilistic risk assessment. Research Engineer, and Project Manager, U.S. Nuclear Regulatory Commission. Member, USNRC International Code Assessment Program (since 1988); Chairman, ANS Thermal Hydraulic Division. Special Achievement Awards for Outstanding Contributions to the USNRC (1986 and 1987); Austin Paul Engineering Faculty Award (1990). Thermal Hydraulic Expert, United Nations IAEA (1995). College of Engineering Research Award (1997). College of Engineering Carter Teaching Award (2000), Member, American Nuclear Society, American Society of Mechanical Engineers. Registered Professional Engi-neer (Nuclear). At Oregon State University since 1987.

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Brian WoodsAssociate Professor. B.S. Mechanical Engineering (1988), University of Virginia, M.S. Nuclear Engineering (1999), Ph.D. Nuclear Engineering (2001), University of Maryland. Fields of interest: reactor thermal hydrau-lics, reactor safety, high-temperature gas reactor design, experimental fluid dynamics and heat transfer. Nuclear Safety Analyst, Dominion Energy (2000-2003). Consultant to Idaho National Laboratory, Interna-tional Atomic Energy Agency. Faculty Advisor, Alpha Nu Sigma Honor Society. Member, American Nuclear Society. Chair, ANS Thermal Hydraulic Division (2011-2012). President, Alpha Nu Sigma Honor Society Na-tional (2009-2011). College of Engineering Research Award (2010). At Oregon State University since 2003.

Qiao Wu Professor. B.S. Engineering Physics (1983), M.S. Engineering Physics (1985), Tsinghua University; Ph.D. Nu-clear Engineering (1995), Purdue University. Fields of interest: thermal hydraulics and reactor safety, reactor engineering and design, multi phase flow and boiling heat transfer, ALWR and IFR stability and safety, thermal hydraulics instrumentation. Assistant Professor, Engineering Physics, Tsinghua University (1985 1990). Research Associate, Nuclear Engineering, Purdue University (1995 1997),. Member, American Nuclear Society Technical Exchange Delegation to China (1998); Visiting Scientist, Argonne National Laboratory (2001); Sci-entific Investigator, International Atomic Energy Agency, United Nations (2004). Member, American Nuclear Society. Institute of Multifluid Science and Technology. Technical Reviewer, Science Center of US Department of State. Best Paper Award, ANS Thermal Hydraulics Division (1997). At Oregon State University since 1998.

Alexey SoldotovAssistant Professor, Senior Research. B.S. on Nuclear Engineering Moscow Engineering Physics Institute (2002) M.S. on Technical Nuclear Physics Moscow Engineering Physics Institute(2004). Ph.D. on Nuclear Engineering, At Oregon State University (2009)

TTFHIGH TEMPERATURE TEST FACILITY

Researching Gen IV technology for the future of nuclear power

He2

10

Total Research Expenditures Government vs. Industry FY 2008- 2012

1.0 M

Sum of Total Exp.

2008 2009 2010 2011 2012

Industry

Government

310,928 1,518,478

1,445,0501,713,553

758,5553,142,468

359,5453,274,055

621,8164,157,728

1.5 M

2.0 M

2.5 M

3.0 M

3.5 M

4.0 M

4.5 M

Statistical Summary

11

Enrollment Academic Years ‘07-’08 to ‘12-’13

100

125

150

175

200

‘07-’08 ‘08-’09 ‘09-’10 ‘10-’11 ‘11-’12

Enrolled students

Academic year

‘12-’13

225

graduate

undergraduate

Degrees Awarded ‘07-’08 to ‘11-’12

10

20

30

40

50

‘07-’08 ‘08-’09 ‘09-’10 ‘10-’11 ‘11-’12

Degrees Awarded

Academic yeargraduate

undergraduate

12

Student Enrollment in Courses Taught in the Department Course # CREDIT COURSE TITLE

Number of Students

‘10-’11 ‘11-’12

NE/ RHP 114* 2 Introduction to Nuclear Engineering and Radiation Health Physics 41 58

NE/ RHP 115 2 Introduction to Nuclear Engineering and Radiation Health Physics 64 58

NE/ RHP 116** 2 Introduction to Nuclear Engineering and Radiation Health Physics 53 56

NE/ RHP 234 4 Nuclear and Radiation Physics I 70 66

NE/ RHP 235 4 Nuclear and Radiation Physics II 68 64

NE/ RHP 236* 4 Nuclear Radiation Detection & Instrumentation 57 50

NE 311 4 Intro to Thermal Fluids 50 43

NE 312 4 Thermodynamics 49 41

NE 319 3 Societal Aspects of Nuclear technology 69 68

NE 331 4 Intro to Fluid Mechanics 46 37

NE 332 4 Heat Transfer 41 46

NE/RHP 333 3 Mathematical methods for NE/RHP 40 35

NE/RHP/MP 401/501/601 1-16 Research - 67

NE/RHP/MP 405/505/605 1-16 Reading and Conference - 2

NE/RHP/MP 406/506/606 1-16 Projects - 2

NE/RHP/MP 407/507/607 1 Nuclear Engineering Seminar 171 244

NE/ RHP/MP 410/510/610 1-12 Internship - 1

NE/ RHP 415/515 2 Nuclear Rules and Regulations 53 72

NE 451/551 4 Neutronic Analysis 38 35

NE 452/552 4 Neutronic Analysis 35 31

NE 455/555** 3 Reactor Operator Training I - 23

NE 456/556 4 Reactor Operator Training II - 5

NE 457/557** 3 Nuclear Reactor Lab 34 27

NE 467/567 4 Nuclear Reactor Thermal Hydraulics 28 31

NE 667 4 Nuclear Reactor Thermal Hydraulics - -

NE/RHP 435/535 3 External Dosimetry & Radiation Shielding 63 72

NE 474/574 4 Nuclear System Design I 26 44

NE/RHP 475/575 4 Nuclear System Design II 35 37

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FacilitiesNumber of Students

Course # CREDIT COURSE TITLE ‘10-’11 ‘11-’12

NE/RHP 479* 1-4 Individual Design Project - -

NE/RHP 481* 4 Radiation Protection 40 55

NE/RHP 582* 4 Applied Radiation Safety 32 17

RHP 483/583 4 Radiation Biology 33 39

RHP 488/588* 3 Radioecology 32 36

NE/RHP 590 4 Internal Dosimetry 11 14

NE/RHP/MP 503/603* 1 Thesis - 156

NE/ RHP 516* 4 Radiochemistry 9 28

NE 526 3 Numerical Methods for Engineering Analysis - -

NE/RHP/MP 531 3 Nuclear Physics for Engineers and Scientists 49 21

NE/RHP/MP 536* 3 Advanced Radiation Detection & Measurement 22 21

NE/RHP 537 3 Digital Spectrometer Design - -

MP 541 3 Diagnostic Imaging Physics - 6

NE 550 3 Nuclear Medicine - -

NE 553* 3 Advanced Nuclear Reactor Physics 18 16

NE 568 3 Nuclear Reactor Safety - -

ST Special Topics* OSTR used occasionally for demonstration and/or experiments** OSTR used heavily

14

Research Contracts & GrantsOrganization Project Title Principal Investigator Amount Dates

Argonne National Lab Effects of Aqueous Complexants on Separation of Zr from Am and Eu Paulenova, Alena $53,804 2/10-4/11

Atomic Energy of Canada Limited

Dose/Response Relationships for 90Sr and OBT in Aquatic Biota at Chalk River Laboratories Higley, Kathryn A $69,021 6/12-3/13

CH2M Hill, Inc Sale of Two Simultaneous Beta/Gamma Spectrometers (US Patent No. 7,683,334) Hamby, David M $34,800 12/10-9/11

Defense ThreatReduction Agency The Interpretation of Uncertainty for CBRNE Decision-Making Hamby, David M $379,348 6/08-12/11

Department of Energy Actively-Shielded Radioxenon Phoswich Detection System Farsoni, Abdollah T Hamby, David M $1,115,604 7/09-12/13

Department of Energy OSUs Fellowship and Scholarship Support Through NEUP Higley, Kathryn A $3,000,000 7/09-6/17

Department of Energy Reinvestment in Nuclear Engineering and Radiation Sciences Education Higley, Kathryn A $88,472 9/10-4/12

Department of EnergyBenchmarked Simulations of Reactor Source Terms for Antineutrino Detection: Normal Operation and Nuclear Material Diversion Scenarios

Palmer, Todd S $400,000 9/09-2/12

Department of Energy Hybrid Monte Carlo/Deterministic Radiation Transport Simulations for Source Detector Problems Palmer, Todd S $650,000 9/09-6/13

Department of Energy Development of the Radiochemistry and Nuclear Material Science Laboratory at OSU Paulenova, Alena $183,158 7/12-7/13

Department of Energy /NEUP

Integral Reactor Containment Condensation Model and Experimental Validation Wu, Qiao $871,119 9/12-8/15

Idaho National Lab Establishment of the Oregon State Academic Center of Excellence in Thermal Fluids and Reactor Safety Klein, Andrew C $930,000 2/05-9/12

Idaho National Lab Feasibility and Safety Assessment for Advanced Reactor Concepts Using Vented Fuel Klein, Andrew C $330,175 9/11-9/14

Idaho National Lab Idaho National Laboratory National University Consortium Chair Support Activities Klein, Andrew C $2,419,533 11/11-9/13

Idaho National LabProposal to Idaho National Laboratory to Implement a Joint Appointment for Professor Andrew C. Klein, Department of Nuclear Engineering and Radiation Health Physics

Klein, Andrew C $283,598 2/10-9/13

Idaho National Lab Proposal to Perform Design Studies for Mars Hopper Concept Klein, Andrew C $24,962 5/10-9/11

Idaho National Lab Run-Ahead Predictive Simulation Research Support for FY2012 Klein, Andrew C $65,000 9/11-12/12

Idaho National Lab High Performance Research Reactor Hydraulic Fuel Test Program Marcum, Wade R $95,000 5/12-5/13

Idaho National Lab Hydro-Mechanical Fuel Testing Marcum, Wade R $775,000 8/12-9/13

Idaho National Lab High Performance Research Reactor Hydro-Mechanical Fuel Test Program Marcum, Wade R $644,892

Idaho National Lab Establishment of the Oregon State Academic Center of Excellence in Thermal Fluids and Reactor Safety Palmer, Todd S $930,000 2/05-9/12

Idaho National Lab Chemistry of Group Extraction of Actinides Paulenova, Alena $54,163 4/11-12/11

Idaho National Lab Faculty Joint Appointment Paulenova, Alena $185,136 3/09-9/11

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Idaho National Lab Group Actinide Separation From Spent Nuclear Fuel Using a Modified Universal Solvent Extraction Process Paulenova, Alena $330,175 1/07-9/10

Idaho National Lab Neptunium Radiation Chemistry Paulenova, Alena $99,709 2/11-9/11

Idaho National Lab Neptunium Radiation Chemistry in Solutions Relevant to Spent Nuclear Fuel Separation Systems Paulenova, Alena $51,418 5/12-9/12

Idaho National LabNeutron Activation and Gamma Spectrum Analyses for Efficient Tracking of the Distribution of Strategic Metals in Liquid-Liquid and Solid-Liquid Systems

Paulenova, Alena $51,418 1/12-3/13

Idaho National Lab Infrastructure Improvements for Oregon State University High Temperature Test Facility Woods, Brian G $440,000 4/11-3/13

Idaho National Lab Infrastructure Improvements for Oregon State University High Temperature Test Facility to Accommodate Increased Power Woods, Brian G $790,000 8/10-12/12

Idaho National Lab Advanced Code Validation Using Apex Integral Test Data Wu, Qiao $65,000 4/12-12/12

Idaho National Lab INEST Safety and Licensing CORE Market Research Wu, Qiao $16,916 5/10-9/10

Idaho National Lab Quantitative Phenomena Identification and Ranking Table Wu, Qiao $119,912 8/11-12/12

National Academy for Nuclear Training National Academy of Nuclear Training Fellowship 2011-2012 Palmer, Camille J $25,000 10/11-6/12

National Academy for Nuclear Training NANT Fellowship 2012-2013 Woods, Brian G $50,000 9/12-9/13

National Academy for Nuclear Training Two NE Fellowships for 2010-2011 Academic Year Wu, Qiao $25,000 9/10-8/11

Nuclear Regulatory Commission OSU to Administer the NRC Scholarship Program Farsoni, Abdollah T $129,600 9/09-8/11

Nuclear Regulatory Commission

Contemporary Building Shielding Factors Research for Level Three Probabilistic Risk Assessments of Severe Nuclear Reactor Accidents Hamby, David M $11,743 9/11-6/12

Nuclear Regulatory Commission Improving the Accuracy of Beta Dosimetry for VARSKIN Hamby, David M $557,604 3/11-9/13

Nuclear Regulatory Commission Faculty Development Program Nuclear Education Higley, Kathryn A $406,523 8/09-7/12

Nuclear Regulatory Commission Oregon State University Nuclear Fellowship Program Palmer, Camille J $385,395 4/12-3/16


Development of Radiochemistry Educational Module as Part of Nuclear Environmental Protection: Course 1. Fuel Cycles Chemistry, Course 2. Radio Chemistry Laboratory

Paulenova, Alena $100,000 7/10-6/12


Basic Research on High Temperature Gas Reactor Thermal Hydraulics and Reactor Physics Woods, Brian G $6,615,886 9/08-3/14

NuScale Power, Inc OSU MASLWR Integral Effects Testing Program Wu, Qiao $1,695,304 11/09-8/13

Oregon Biomedical Engineering Institute, Inc

Wound Decontamination of Radioactive Exposures Paulenova, Alena $311,876 10/10-9/12

TerraPower Feasibility Study on the Development of a Liquid Metal Test Facility Klein, Andrew C $189,079 8/11-12/12

University of Wisconsin -Madison / NEUP

Crit. Heat Flux Phenomena at High P and Low Mass Fluxes: Tests and Models Wu, Qiao $285,398 9/11-9/13

URS Corporation Develop a Coupled CFD/Combustion/Radiative Transfer Simulation Palmer, Todd S $62,490 1/10-12/10

URS Corporation Large-Eddy and Direct Simulation of Oxycoal Combustion with Radiative Heat Transfer Palmer, Todd S $54,297 1/11-9/12

Vanderbilt University Consortium for Risk Evaluation with Stakeholder Participating III Higley, Kathryn A $1,033,848 9/06-2/13

Woods Hole Oceano-graphic Institution

Assessment of Impact of Fukushima Nuclear Power Plant Discharges on Marine Systems Higley, Kathryn A $55,029 5/11-10/12

Total $26,541,340

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Archival Journal Citations

Becker, E.M, Farsoni, A.T.; Alhawsawi, A.M.; Alemayehu, B. “Small Prototype Gamma Spectrometer Using CsI(Tl) Scintil-lators Coupled to a Solid-State Photomultiplier,” in press, IEEE Trans. Nucl. Sci (2012), available online, DOI: 10.1109/TNS.2012.2228236, 2012.

Caffrey, E. and Higley, K. Improved Dosimetric Model of the ICRP Reference, J. Environ Radioact, accepted for publication.

Caffrey, J.A. , Higley, K.A., Farsoni, A.T., Smith, S., Menn, S. Development and deployment of an underway radioactive cesium monitor off the Japanese coast near Fukushima Dai’ichi, Journal of Environmental Radioactivity 111: 2012 Sep pg 120-5.

Caffrey, J.A.; Hamby, D.M. A Review of Instruments and Methods for Dosimetry in Space. Advances in Space Research. 47(4): 563-574; 2011.

Edwards, J.A.; Snyder, F.J.; Allen, P.M.; Makinson, K.A.; Hamby, D.M. Decision Making for Risk Management: A Comparison of Graphical Methods for Presenting Quantitative Uncertainty. Risk Analysis. DOI: 10.1111/j.1539-6924.2012.01839.x. May 22, 2012.

Farsoni, A.T.; Alemayehu, B.; Alhawsawi A. Becker, E. M. “A Phoswich Detector with Compton Suppression Capability for Radioxenon Measurements,” IEEE Trans. Nucl. Sci. , Vol. 60, No. 1: 456 – 464, 2013.

Farsoni, A.T.; Alemayehu, B.; Alhawsawi, A.; Becker, E.M. “A Compton-Suppressed Phoswich Detector for Gamma Spec-troscopy,” in press, Journal of Radioanalytical and Nuclear Chemistry, available online, DOI: 10.1007/s10967-012-2009-2, 2012.

Publications & Patents

17

Hamby, D.M., Lodwick, C.J., Palmer, T.S., Reese, S.R., Higley, K.A., Caffrey, J.A., Sherbini, S., Saba, M., and Bush-Goddard, S.P., “The New Varskin 4 Photon Skin Dosimetry Model,” Radiation Protection Dosimetry (2012); doi: 10.1093/rpd/ncs247.

Hartman, M.R., S.T. Keller, S.T., Reese, S.R., Robinson B., Stevens J., Matos, J.E., Marcum, W.R., Palmer, T.S., and Woods, B.G., “Neutronic Analysis of the Oregon State TRIGA® Reactor in Support of Conversion from HEU to LEU Fuel”, Nuclear Sci and Eng (In Press).

Higley, K.A., Kocher, D.C., Real, A.G., and Chambers, D.B., RBE and radiation weighting factors in the context of animals and plants, Ann ICRP. 2012 Oct;41(3-4):233-45. doi: 10.1016/j.icrp.2012.06.014. Epub 2012 Aug 22.

Howard, B.J., Beresford, N.A., Copplestone D., Telleria, D., Proehl, G., Fesenko, S., Jeffree, R., Yankovich, T., Brown, Higley, K., Johansen, M., Mulye, H., Vandenhove, H., Gashchak, S., Wood, M.D., Takata, H., Andersson, P., Dale, P., Ryan , J. Bollhofer, A., Doering, C., Barnett, C.L., Wells, C. The IAEA Handbook on Radionuclide Transfer to Wildlife. J. Environ Radioact, doi:10.1016/j.jenvrad.2012.01.27

Makinson, K.A.; Edwards, J.A.; Hamby, D.M. A Review of Contemporary Methods for the Presentation of Scientific Uncertainty. Health Physics. 103(6): 714-731; 2012.

Marcum, W.R., Palmer, T.S., Woods, B.G., Keller, S.T., Reese, S.R. and Hartman, M.R., “A Comparison of Pulsing Characteristics of the Oregon State University TRIGA Reactor with FLIP and LEU Fuel”, Nuclear Sci and Eng 171, 150-164, 2012.

Marcum, W.R., “Morphing from a Separate Effects to Multiphysics Characterization Environment,” Journal of Nuclear Energy Science & Power Generation Technology, Volume 1, Number 1, pp. 1-2, October 2012.

Marcum, W.R., Woods, B.G., “Predicting the Onset of Dynamic Instability of a Cylindrical Plate under Axial Flow Conditions,” Nuclear Engineering and Design, Volume 250, pp. 81-100, September 2012.

Mascari, F., Vella, G., Woods, B.G., Welter, K., Pottorf, J., Young, E., Adorni, M., and D’Auria, F., “Sensitivity Analysis of the MASL-WR helical coil steam generator using TRACE,” Nuclear Engineering and Design, Volume 241, Number 4, pp. 1137-1144, April 2011.

Matthews, C. and T.S. Palmer, “Analysis of the Antineutrino Production Rate During CANDU Startup,” Ann. Nucl. Energy (2012) DOI: 10.1016/j.anucene.2012.06.034.

Palmer, T.S., “The 22nd International Conference on Transport Theory, Portland, Oregon, September 11-15, 2011,” Trans. Theory and Stat. Phys., 41, 1-2, pp I-III (2012). DOI:10.1080/00411450.2012.726172

Soldatov, A. and Palmer, T.S. “A Five-Year Core for a Small Modular Light Water Reactor”, Nucl. Sci. Engr., 167, pp. 1-14 (2011)

Somasundarum, E. and Palmer, T. S. “Benchmarked, Three-Dimensional Antineutrino Source Term Calculations Of Light Water Reactors For Non-Proliferation Applications “, Nucl. Technology, 179, 1 (2012).

Cadell, S.R., and Woods, B.G., “Use of the Carbon Ceramic Experimental Test Apparatus to Validate the HTTF Design,” Proceed-ings, International 14th International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH 14), Toronto, CA, Septem-ber, 2011.

Cleveland, M. A., Palmer T. S. and S. Apte, “Turbulence Radiation Interactions In A Statistically Homogeneous Turbulence With Approximated Coal Type Particulate”, Proc. Of the ASME 2012 Fluid Engineering Summer Meeting, July 8-12, 2012, Puerto Rico, USA.

Farsoni, A.T.; Alemayehu, B.; Alhawsawi A. “A Compton-Suppressed Phoswich Detector for Radioxenon Measurements,” The IEEE Nuclear Science Symposium, Valencia, Spain. Oct. 22-29, 2011.

Farsoni, A.T.; Alemayehu, B.; Alhawsawi A. “Preliminary Measurements with a Compton-Suppressed Phoswich Detector,” The 33th Monitoring Research Review. Tucson, AZ, September 12-15, 2011

Conference Full Papers

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Al Zaharani, A, Bytwerk, D., Higley, K., and Napier, J., Analysis of simulated radioactive petroleum waste uptake in radishes. Fifty-sixth annual meeting of the Health Physics Society: 26 - 30 June 2011 Palm Beach, Florida: Abstracts of Papers Presented at the Meeting Health Physics. 101(1):A3-A4, S91, July 2011. doi: 10.1097/01.HP.0000400068.68697.fd

Alemayehu, B.; Farsoni, A.T.; Alhawsawi, A.M.; Becker, E.M. “Real-time FPGA Based Radioxenon Measurements using an Actively Shielded Phoswich Detector (ASPD),” IEEE Symposium on Radiation Measurements and Applications, Oakland, CA, May 14-17, 2012.

Alhawsawi, A.M.; Farsoni, A. T.; Alemayehu, B.; Becker, E.M. “FPGA Digital Pulse Processing for an Actively Shielded Phoswich Detector (ASPD),” IEEE Symposium on Radiation Measurements and Applications, Oakland, CA, May 14-17, 2012.

Becker, E.M, Farsoni, A.T.; Alhawsawi, A.M.; Alemayehu, B. “Small Prototype Gamma Spectrometer Using CsI(Tl) Scintillators Coupled to a Solid-State Photomultiplier,” IEEE Symposium on Radiation Measurements and Applications, Oakland, California, May 14-17, 2012.

Bevill, A., E. A. Miller and T. S. Palmer, “Performance of Hybrid Methods for a Representative Non-Proliferation Source/Detector Problem”, Trans. Am. Nucl. Soc., 102, 2011

Bytwerk, D., Higley, K., Hay, T., Foliar interception and uptake of Cl-36 by crops. Presented at the International Conference on Radioecology & Environmental Radioactivity - Environment & Nuclear Renaissance, 19–24 June 2011 Hamilton, Canada.

Bytwerk, D., and Higley, K., Experimental techniques for quantifying foliar interception and Translocation. Fifty-sixth annual meeting of the Health Physics Society: 26 - 30 June 2011 Palm Beach, Florida: Abstracts of Papers Presented at the Meeting Health Physics. 101(1):A3-A4, S91, July 2011. doi: 10.1097/01.HP.0000400068.68697.fd

Caffrey, E., Higley, K. , Improving the Dosimetric Model of the International Commission on Radiological Protection’s Reference Crab, 57th Annual Meeting of the Health Physics Society, 22-26 July 2012, Sacramento, California

Caffrey, J., Higley, K., Farsoni, A., Smith, S., Menn, S. ,Oregon State University’s Radiological Support for a Woods Hole Oceano-graphic Institute Research Cruise near Fukushima Dai’ichi , 57th Annual Meeting of the Health Physics Society, 22-26 July 2012, Sacramento, California

Conference Presentation Citations

Holschuh, T., Weiss, A., Jensen, P., Marcum, W.R., “Proof-of-Concept: Method for Identifying Fuel Plate Plastic Deformation in Real Time”, Advances in Thermal Hydraulics, 2012 American Nuclear Society Winter Conference, San Diego, California, United States, November 11-15, 2012.

Jackson, R.B., Woods, B.G., Marcum, W.R., “Boundary Layer Laminarization by Convex Curvature and Acceleration Effects”, Ad-vances in Thermal Hydraulics, 2012 American Nuclear Society Winter Conference, San Diego, California, United States, Novem-ber 11-15, 2012.

Mascari, F., Vella, G., and Woods, B.G., “TRACE Code Analyses for the IAEA ICSP on Integral PWR Design Natural Circulation Flow Stability and Themo-Hydraulic Coupling of Containment and Primary System during Accidents,” Proceedings, ASME 2011 Small Modular Reactors Symposium, Washington, DC, September, 2011.

Mascari, F., Vella, G., Woods, B. G., and D’Auria, F., “Analysis of the Multi-Application Small Light Water Reactor (MASLWR) design natural circulation phenomena,” Proceedings, International Congress on Advanced Nuclear Power Plants (ICAPP 2011), Nice, France, May 2-5, 2011.

Mascari, F., Vella, G., and Woods, B.G., “TRACE Code Analyses for the IAEA ICSP on Integral PWR Design Natural Circulation Flow Stability and Themo-Hydraulic Coupling of Containment and Primary System during Accidents,” Proceedings, ASME 2011 Small Modular Reactors Symposium, Washington, DC, September, 2011.

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Caffrey, J.A.; Mangini, C.D.; Farsoni, A.T.; Hamby, D.M. “A Phoswich Detector for Simultaneous Beta and Gamma Spectroscopy,” The 44th Annual Midyear Meeting of the Health Physics Society. Charleston, SC. February 6-9, 2011.

Cleveland, M.A., and T.S. Palmer, “Temporal Convergence of Coarse Mesh Finite Difference Accelerated Monte Carlo”, Trans. Am. Nucl. Soc., 2012

Cleveland, M., and T. S. Palmer, “Comparing Two Opacity Models in Monte Carlo Radiative Heat Transfer: Computational Efficien-cy and Parallel Load Balancing”, Trans. Am. Nucl. Soc., 102, 2011

Edwards, J.; Allen, P; Snyder, F.; Falkenstein, A.; Makinson, K.; Hamby, D. A Comparison of Methods of Presenting Probability Information to Decision Makers. The Society for Personality and Social Psychology. San Antonio, TX. January 27-29, 2011.

Farsoni, A.T.; Alemayehu, B.; Alhawsawi A. Becker, E. M. “FPGA Based Pulse Shape Discrimination and Coincidence Energy Mea-surement for a Phoswich Detector,” The IEEE Nuclear Science Symposium, Anahaim, CA. Oct. 29- Nov. 4, 2012.

Farsoni, A.T.; Alemayehu, B.; Alhawsawi A.; Becker, E.M.; “Real-Time Pulse Shape Discrimination and Radioxenon Measurement in Field Programmable Gate Array,” The 34th Monitoring Research Review. Albuquerque, NM, September 17-20, 2012.

Farsoni, A.T.; Alemayehu, B.; Alhawsawi, A.; Becker, E.M. “A Compton-Suppressed Phoswich Detector for Gamma Spectros-copy,” The Ninth International Conference of Methods and Applications of Radioanalytical Chemistry, Kailua-Kona, Hi, March 25-30, 2012.

HuaJian Chang, , Yuquan Li, Qiao Wu, Zishen Ye, Lian Chen, “A New Integral Test Facility ACME for Passive Safety PWR”, Trans-action of ANS Winter Meeting, San Diego, CA, Nov. 11-15, 2012.

Hallee, Brian , Hu Luo, Jeffrey Luitjens, Qiao Wu “Application of Modern CSAU to Reactor System Safety Analysis Using IET Data”, Transaction of ANS Winter Meeting, San Diego, CA, Nov. 11-15, 2012.

Hamby, D.M.; Lodwick, C.J.; Palmer, T.S.; Reese, S.R.; Higley, K.A. VARSKIN 4: A computer code for skin contamination dosim-etry. Nuclear Regulatory Commission. Rockville, MD: Report No. NUREG/CR-6918, Rev. 1; 2011.

Hay, T., Higley, K., Bytwerk, D., Medical radionuclide impurities in wastewater. Presented at the International Conference on Radioecology & Environmental Radioactivity - Environment & Nuclear Renaissance, 19–24 June 2011 Hamilton, Canada.

Higley, K.A., Necessary Role of Radioecology, 2nd International Nuclear Congress, Warsaw, Poland, May 20-22, 2012.

Higley, K.A., Kocher, D.C., Real, A.G., and Chambers, D.B., RBE and radiation weighting factors as applied in the context of pro-tection of the environment from ionising radiation, In press, Proceedings of the International Radiation Protection Association, May 13-18, 2012 Glasgow Scotland.

Higley, K., Bytwerk, D., and Houser, E. Why We Still Need Data for Radioecological Modeling; SETAC North America 32nd Annual Meeting 13–17 Nov 2011, Hynes Convention Center, Boston, MA.

Higley, K., Radioecology, 2011 ANS Winter Meeting and Nuclear Technology Expo “The Status of Global Nuclear Deployment” October 30-November 3, 2011 Washington, DC Omni Shoreham Hotel.

Higley, K.A., Kocher, D.C., Real, A.G., and Chambers, D.B., RBE and radiation weighting factors in the context of animals and plants, In press, Proceedings of the ICRP, Bethesda, MD, October 2011.

Higley, K., Radionuclide Concentrations in Food and the Environment, Council on Ionizing Radiation Measurements and Stan-dards CIRMS 2011, 20th Anniversary October 17-20, 2011, Public Perception of Radiation, National Institute of Standards and Technology.

Higley, K., Nuclear preparedness, Extension Disaster Education Network, October 11-14, 2011 Annual meeting.

Howard, B.J., Beresford, N. A., Barnett, C.L. ,Wells, C., Copplestone, D., Telleria, D., Proehl, G., Fesenko, S., Phaneuf, M., Jeffree,

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R., Yankovitch, T.L., Brown, J. ,Higley, K., Johansen, M.P., Mulye, H., Dagher, E. E., Vandenhove, E., Gaschak, S., Wood, M.D., A. Hummel and T. S. Palmer, “Implementation of a Coarse Mesh Finite Differencing Acceleration in Cylindrical Geometry in PARCS”, Trans. Am. Nucl. Soc., 102, 2011

Houser, E., Bytwerk, D., and Higley, K. Quantification of anthropogenic radionuclides in a naturally-shed reindeer antler found in arctic Sweden; Fifty-sixth annual meeting of the Health Physics Society: 26 - 30 June 2011 Palm Beach, Florida: Abstracts of Papers Presented at the Meeting Health Physics. 101(1):A3-A4,S1-S99, July 2011. doi: 10.1097/01.HP.0000400068.68697.fd

Houser, E., Bytwerk, D., Leonard, M., Higley, K., Foliar Translocation & Root Uptake of Cesium in Tea Plants (camellia sinensis), 57th Annual Meeting of the Health Physics Society, 22-26 July 2012, Sacramento, California

Jackson, R.B., Howard, T., Mullin, E., Marcum, W.R., “Preliminary Investigation on Vortical Structure Influence of Trailing Plate in Axial Flow”, Trans. American Nuclear Society Winter Meeting, Vol. 107, pp. 1333-1335, 2012.

Luitjens, Jeff M., Hu Luo, Qiao Wu, “Thermal Hydraulic Computer Code Validation Using Quantified PIRT for Uncertainty Analy-sis”, Las Vegas, NV, ASME V&V Symposium, May 2-4, 2012.

Leonard, M., Higley, K., Radiological Modeling Software as a Learning Tool, 57th Annual Meeting of the Health Physics Society, 22-26 July 2012, Sacramento, California

Long, A., Gentile, N. A., and Palmer, T. S., “A More Implicit Temperature Estimate for the IMC Method of Photon Transport”, Trans. Am. Nucl. Soc., 2012

Luo, H., J. Luitjens, Q. Wu Dana Kelly “Quantified PIRT and Uncertainty Quantification for Thermal Hydraulic Computer Code Validation”, Transaction of ANS Winter Meeting, Washington DC., Oct. 20 – Nov. 3, 2011

Luo, Hu, Qiao Wu, Vincent A. Mousseau “Quantified PIRT for Thermal Hydraulic Computer Code Validation”, Transaction of ANS Winter Meeting, Las Vegas, NV, Nov. 7-11, 2010.

Mangini, C.D.; Caffrey, J.A.; Farsoni, A.T.; Hamby, D.M. “A Signal Pulse Processor for Multi-Component Signals,” The 44th Annual Midyear Meeting of the Health Physics Society. Charleston, SC. February 6-9, 2011.

Mangini, C.D.; Caffrey, J.A.; Hamby, D.M. Determination of Beta Dose-Point-Kernels for High-Z Sources in Non-homogeneous Geometries. Proceedings of the 57th Annual Meeting of the Health Physics Society. Sacramento, CA. Health Physics. July 22-26, 2012.

Marcum, W.R., Phillips, A.M., Ambrosek, R.G., Spears, R.E., Wiest, J.D., “Method for Experimental Acquisition of Hydraulic In-duced Plastic and Elastic Fuel Plate Deformation”, Trans. American Nuclear Society Winter Meeting, Vol. 105, pp. 968-969, 2011.

Marcum, W.R., Phillips, A.M., Wachs, D.M., “Shakedown Testing of the Hydro-Mechanical Fuel Test Facility,” 2011 Test, Research and Training Reactors, Idaho Falls, Idaho, United States, September 12-15, 2011.

Marcum, W.R., Woods, B.G., “Predicting the Onset of Dynamic Instability of a Cylindrical Plate under Axial Flow Conditions”, Trans. American Nuclear Society Annual Meeting, Vol. 104, pp. 1016-1017, 2011.

Matthews, C., and T. S. Palmer, “An Analysis of the Antineutrino Rate During CANDU Reactor Startup”, Trans. Am. Nucl. Soc., 2012

Myers, M., Higley, K.US Army, Use of GIS Software to Map Contaminant Distributions and Deter¬mine Integrated Dose for Pur-poses of Assessing Impact to Biota, 57th Annual Meeting of the Health Physics Society, 22-26 July 2012, Sacramento, California

Napier, J., Higley, K., Houser, E., Bytwerk, D., Minc, L. , Establishment of Concentration Ratios for Riparian and Shrub Steppe Areas of the Eastern Washington Columbia Basin, 57th Annual Meeting of the Health Physics Society, 22-26 July 2012, Sacra-mento, California

Neville, Delvan, A. Jason Phillips, Richard D. Brodeur, Kathryn Higley, Lorenzo Ciannelli, “Radionuclide transport in the Northern California Current Food Web: Impacts of Fukushima & Migratory Albacore Tuna. October 2012, Heceta Head Coastal Conference, Florence OR

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Neville, Delvan, A. Jason Phillips, Richard D. Brodeur, Kathryn Higley, Lorenzo Ciannelli, “Radionuclide transport in the Northern California Current Food Web: Impacts of Fukushima & Migratory Albacore Tuna. Poster presentation at the Woods Hole Oceano-graphic Institute special Fukushima symposium in November 2012.

Parson, J., Houser, E., Bytwerk, D., Higley, K. (Presented by Napier, J., and Caffrey, E.), Uranium Uptake in Capsicum Annuum for Various Growing Conditions, 57th Annual Meeting of the Health Physics Society, 22-26 July 2012, Sacramento, California

Roth, G.D., Marcum, W.R., Woods, B.G., “CFD Study of the Generic Test Plate Assembly for use in the Hydro-Mechanical Fuel Test Facility”, Trans. American Nuclear Society Winter Meeting, Vol. 105, pp. 933-934, 2011.

Soldatov, A. and T.S. Palmer, “Boron-free core design for innovative 4.5% and 8.0% enriched MASLWR fuel”, Trans. Am. Nucl. Soc., 2012

Somasundarum, E., A. Soldatov and T. S. Palmer, “Estimation of Antineutrino Signature for a Small Modular Reactor (SMR) Loaded with U02 and MOX Fuel”, Trans. Am. Nucl. Soc., 102, 2011

Strand, P. , Pentreath, J. , Larsson, C. , Higley, K. ., Prøhl, G. , Real, A. Copplestone, D. Brèchignac, F., Research needs necessary to support the ICRP’s set of Reference Animals and Plants with regard to protection of the environment. Presented at the In-ternational Conference on Radioecology & Environmental Radioactivity - Environment & Nuclear Renaissance, 19–24 June 2011 Hamilton, Canada.

Talbot, P., A. Wollaber and T. S. Palmer, “Implementing a Discrete Maximum Principle for the IMC Equations”, Trans. Am. Nucl. Soc., 2012

Tissot, C., Paine, J., Shaw, C., Bytwerk, D., Higley, K., and Whitlow, J. The Concentration Ratio of 36Cl in Artemia Salina. s9 Fifty-sixth annual meeting of the Health Physics Society: 26 - 30 June 2011 Palm Beach, Florida: Abstracts of Papers Presented at the Meeting Health Physics. 101(1):A3-A4,S1-S99, July 2011. doi: 10.1097/01.HP.0000400068.68697.fd

Uchida, S., Takata, H., K.Tagami,, Andersson, P., Dale, P., Ryan J., A new IAEA technical report series handbook on radionuclide transfer to wildlife. Presented at the International Conference on Radioecology & Environmental Radioactivity - Environment & Nuclear Renaissance, 19–24 June 2011 Hamilton, Canada.

Whitlow, J., Higley, K., Bytwerk, D., Reese, S., Robertson, A. , Bioturbation by Lumbricus terrestris in Soil Contaminated with Cs-134, 57th Annual Meeting of the Health Physics Society, 22-26 July 2012, Sacramento, California

Books and Book Chapters

Marcum, W.R., Spinrad, B., Nuclear Reactors. In Encyclopedia Britannica. 2012.

Other ReportsMarcum, W.R., “How Universities can partner with Industry: Lessons learned from the Hydro-mechanical Fuel Test Facility at OSU”, International Nuclear Energy Congress, Warsaw, Poland, May 22-24, 2012.

Marcum, W.R., Woods, B.G., Jackson, R.B., “Functional Description of the Hydro-Mechanical Fuel Test Facility at Oregon State University”, International Nuclear Energy Congress, Warsaw, Poland, May 23-24, 2011.

Wiest, J.D., Marcum, W.R., Phillips, A.M. “Hydro Mechanical Fuel Test Facility (HMFTF Generic Test Plate Assembly (GTPA) Test Matrix, INL/MIS-11-21527, March 2011

Phillips, A.M., Marcum, W.R., Wachs, D.M. “U-Mo Fuel: Hydro-Mechanical Overview and Objectives”. Idaho National Laboratory, INL/EXT-10-20031, February 2011

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Earthfort ProVide testing – testing of a soil inoculant for immobilization of radiocesiumBiological Remediation Strategy for Immobilizing Cs-137 in Soils Final Report, Senior Design Project, Oregon State University, June 2012.

PatentsFarsoni, A. T. and Hamby, D. M. “Simultaneous Beta and Gamma Spectroscopy”, US Patent # 7,683,334, March 23, 2010.

Hamby, D. M., Farsoni, A. T., Cazalas, E. “Skin Contamination Dosimeter”, US Patent # 7,964,848, June 21, 2011.

Reese, S., Palmer, T., Keller, S., and Munk, M., “Molybdenum Production in a Low Power Reactor;” Provisional ApplicationNumber 61/368,762, July 29, 2010.

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Graduate Student Thesis/Dissertations Abstracts

Dissertation Abstracts

Aqueous Complexation of Citric Acid and DTPA with Selected Trivalent and Tetravalent f-ElementsM. Alex Brown for the degree of Doctor of Philosophy in Chemistry presented on December 10, 2012.Abstract approved: Alena Paulenova

Carboxylic acids have played an important role in the field of actinide (An) and lanthanide (Ln) separations and the reprocessing of irradiated nuclear fuel. Recent bench-scale experiments have demonstrated that 3-carboxy-3-hydroxypentanedioic acid (citric acid) is a promising aqueous complexant that can effectively aid in the separation of transition metals from f-element mixtures. Furthermore, citric acid was found to be a suitable buffer for the nitrogen donating ligand diethylenetriamineN,N,N’,N’’,N’’-pentaacetic acid (DTPA) which has a higher complexation affinity for An over Ln.

The complexation of Ln and An with anions of citric acid and DTPA have been previously studied with conflicting results regarding the coordination of metal ions between carboxylic groups, the feasibility of protonated metal complexes, and the formation constants themselves. Using potentiometry, spectrophotometry, microcalorimetry, and specific ion interaction modeling, we investigated metal complexes of citric acid and DTPA with selected trivalent and tetravalent Ln and An ions. The complexes were investigated with respects to stability constants, thermodynamics of complexation, oxidation states, the concentration of electrolyte, ligand size, and metal ionic radius.

Foliar Interception and Uptake of 36Cl by CropsDavid Paul Bytwerk for the degree of Doctor of Philosophy in Radiation Health Physics presented on September 15, 2011Abstract approved: Kathryn Higley

Greenhouse studies were conducted to determine interception, absorption, and translocation values for foliar applied 36 Cl. Foliar interception and uptake of contaminated irrigation water by crops is a major pathway for the transport of radionuclides to human beings in scenarios relevant to the waste disposal community.

Performance assessments of many repositories that predict doses to people from longterm geological disposal of radioactive waste are equipped to consider foliar interception and uptake by crops on an element and crop specific basis in their predictions, but crop and element specific data does not exist in the literature to justify the choice of parameter values in these models. 36 Cl is among the isotopes for which there is a lack of data and has recently been predicted to be among the largest contributors to dose at the time of peak dose from many repositories. Reported here are 36 Cl foliar interception, absorption, and translocation parameters for three crops: a root vegetable -radishes, a fruit - beans, and a grain - wheat.

High Pressure Condensation Heat Transfer in the Evacuated Containment of a Small Modular ReactorJason R. Casey for the degree of Master of Science in Nuclear Engineering presented on December 19, 2012.Abstract approved: Qiao Wu

At Oregon State University the Multi‐Application Small Light Water Reactor (MASLWR) integral effects testing facility is being prepared for safety analysismatrix testing in support of the NuScale Power Inc. (NSP) design certificationprogress. The facility will be used to simulate design basis accident performance of the reactor’s safety systems. The design includes an initially evacuated, high pressure capable containment system simulated by a 5 meter tall pressure vessel. The convection‐condensation process that occurs during use of the Emergency Core Cooling System has been characterized during two experimental continuous blowdown events. Experimental data has been used to calculate an average heat transfer coefficient for the containment system. The capability of the containment system has been analytically proven to be a conservativeestimate of the full scale reactor system.

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Radiative Heat Transfer in Combustion Applications: Parallel Eciencies of Two Gas Models, Turbulent Radiation Interactions in Particulate Laden Flows, and Coarse Mesh Finite Dierence Acceleration for Improved Temporal AccuracyMathew A. Cleveland for the degree of Doctor of Philosophy in Nuclear Engineering presented on December 2, 2011.Abstract approved: Todd S. Palmer

We investigate several aspects of the numerical solution of the radiative transfer equation in the context of coal combustion: the parallel eciency of two commonly-used opacity models, the sensitivity of turbulent radiation interaction (TRI) eectsto the presence of coal particulate, and an improvement of the order of temporal convergence using the coarse mesh nite dierence (CMFD) method. There are four opacity models commonly employed to evaluate the radiative transfer equation in combustion applications; line-by-line (LBL), multigroup, band, and global. Most of these models have been rigorously evaluated for serial computations of a spectrum of problem types [1]. Studies of these models for parallel computations [2] are limited. We assessed the performance of the Spectral-Line-Based weighted sum of gray gasses (SLW) model, a global method related to K-distribution methods [1], and the LBL model. The LBL model directly interpolates opacity information from large data tables. The LBL model outperforms the SLW model in almost all cases, as suggested by Wang et al. [3]. The SLW model, however, shows superior parallel scaling performance and a decreased sensitivity to load imbalancing, suggesting that for some problems, global methods such as the SLW model, could outperform the LBL model.Turbulent radiation interaction (TRI) eects are associated with the dierences in the time scales of the fluid dynamic equations and the radiative transfer equations.

Solving on the fluid dynamic time step size produces large changes in the radiation eld over the time step. We have modied the statistically homogeneous, non-premixed flame problem of Deshmukh et al. [4] to include coal-type particulate. The addition of low mass loadings of particulate minimally impacts the TRI eects. Observed dierences in the TRI effects from variations in the packing fractions and Stokes numbers are dicult to analyze because of the signicant effect of variations in problem initialization. The TRI eects are very sensitive to the initialization of the turbulence in the system. The TRI parameters are somewhat sensitive to the treatment of particulate temperature and the particulate optical thickness, and this eect are amplied by increased particulate loading. Monte Carlo radiative heat transfer simulations of time-dependent combustion processes generally involve an explicit evaluation of emission source because of the expense of the transport solver. Recently, Park et al. [5] have applied quasi-diusion with Monte Carlo in high energy density radiative transfer applications.

We employ a Crank-Nicholson temporal integration scheme in conjunction with the coarse mesh nite dierence (CMFD) method, in an eort to improve the temporal accuracy of the Monte Carlo solver. Our results show that this CMFD-CN methodis an improvement over Monte Carlo with CMFD time-dierenced via Backward Euler, and Implicit Monte Carlo [6] (IMC). The increase in accuracy involves very little increase in computational cost, and the gure of merit for the CMFD-CN scheme is greater than IMC.

Medical radionuclides and their impurities in wastewaterTristan R. Hay for the degree of Doctor of Philosophy in Radiation Health Physics presented on March 16, 2012Abstract approved: Kathryn Higley

NCRP report No.160 states that medical exposure increased to nearly half of the total radiation exposure of the U.S. population from all sources in 2006 (NCRP 2009). Part of this increase in exposure is due to the rise in nuclear medicine procedures. With this observed growth in medical radionuclide usage, there is an increase in the radionuclide being released into wastewater after the medical procedures. The question then arises: what is the behavior of medical radionuclides and their impurities in the wastewater process? It is important to note that, often, medical radionuclides are not exactly 100% radionuclide pure, but they meet a certain standard of purity. Of particular interest are the longer lived impurities associated with these medical radionuclides. The longer lived impurities have a higher chance of reaching the environment. The goal of this study is to identify the behavior of medical radionuclides and their impurities associated with some of the more common radiopharmaceuticals, including Tc-99m and I-131, and locate and quantify levels of these impurities in municipal wastewater and develop a model that can be used to estimate potential dose and risk to the public.

An experimental study of laminarization induced by acceleration and curvatureR. Brian Jackson for the degree of Doctor of Philosophy in Nuclear Engineering Abstract approved: Brian G. Woods

The Generation IV Very High Temperature Reactor (VHTR) design is being actively studied in various countries for application due to its inherent passive safe design, higher thermal efficiencies, and proposed capability of providing high temperature process heat. The pebble bed core is one of two core designs used in gas reactors. In the pebble bed core there are mechanisms

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present which can cause the flow to laminarize, thus reducing its heat transfer effectiveness. Wind tunnel experiments were conducted using Particle Image Velocimetry (PIV) to investigate boundary layer laminarization due to flow acceleration and convex curvature effects. The flow was subject to acceleration and curvature both separately and together and the flow behavior characterized with velocity flow profiles, mean boundary layer parameters, and turbulence quantities. Laminarization was identified and the influence of acceleration and curvature was characterized.

Quantified PIRT and Uncertainty Quantification for Computer Code ValidationHu Luo for the degree of Doctor of Philosophy in Nuclear Engineering presented on November 30, 2012.Abstract approved: Qiao Wu

This study is intended to investigate and propose a systematic method for uncertainty quantification for the computer code validation application. Uncertainty quantification has gained more and more attentions in recent years. U.S. Nuclear Regulatory Commission (NRC) requires the use of realistic best estimate (BE) computer code to follow the rigorous Code Scaling, Application and Uncertainty (CSAU) methodology. In CSAU, the Phenomena Identification and Ranking Table (PIRT) was developed to identify important code uncertainty contributors. To support and examine the traditional PIRT with quantified judgments, this study proposes a novel approach, the Quantified PIRT (QPIRT), to identify important code models and parameters for uncertainty quantification. Dimensionless analysis to code field equations to generate dimensionless groups (Π groups) using code simulation results serves as the foundation for QPIRT. Uncertainty quantification using DAKOTA code is proposed in this study based on the sampling approach. Nonparametric statistical theory identifies the fixed number of code run to assure the 95 percent probability and 95 percent confidence in the code uncertainty intervals.

Beta-Particle Backscatter Factors and Energy-Absorption Scaling Factors for Use with Dose-Point Kernels Colby D. Mangini for the degree of Doctor of Philosophy in Radiation Health Physics presented on November 26, 2012. Abstract approved: David M. Hamby ‘Hot particle’ skin dosimetry calculations are commonly performed using homogeneous dose-point kernels (DPK) in conjunc-tion with scaling and backscatter models to account for non-homogeneous geometries. A new scaling model for determining the actual DPK for beta-particles transmitted by a high-Z source material has been developed. The model is based on a de-termination of the amount of mono-energetic electron absorption that occurs in a given source thickness through the use of EGSnrc (Electron Gamma Shower) Monte Carlo simulations. Integration over a particular beta spectrum provides the betapar-ticle DPK following self-absorption as a function of source thickness and radial depth in water, thereby accounting for spectral hardening that may occur in higher-Z materials. Beta spectra of varying spectral shapes and endpoint energies were used to test our model for select source materials with 7.42 < Z ≤ 94. A new volumetric backscatter model has also been developed. This model corrects for beta-particle backscattering that occurs both in the source medium and in the atmosphere surrounding the source. Hot particle backscatter factors are constructed iteratively through selective integration of point-source backscatter factors over a given source geometry. Selection criteria are based on individual source-point positions within the source and determine which, if any, backscatter factors are used. The new scaling model and backscatter model were implemented into the DPK-based code VARSKIN 4 for extensive dose testing and verification. Verification results were compared to equivalent Monte Carlo simulations. The results demonstrate that significant improvements can be made to DPK-based models when dealing with high-Z volumetric sources in non-homogeneous geometries.

The Kinetic and Radiolytic Aspects of Control of the Redox Speciation of Neptunium in Solutions of Nitric AcidMartin Precek for the degree of Doctor of Philosophy in Chemistry presented on August 29, 2012. Abstract approved: Aleana Paulenova Neptunium, with its rich redox chemistry, has a special position in the chemistry of actinides. With a decades-long history of development of aqueous separation methods for used nuclear fuel (UNF), management of neptunium remains an unresolved is-sue because of its not clearly defined redox speciation. Neptunium is present in two, pentavalent (V) and hexavalent (VI) oxida-tion states, both in their dioxocation O=Np=O neptunyl form, which differ greatly in their solvent extraction behavior. While the neptunium(VI) dioxocation is being very well extracted, the dioxocation of pentavalent neptunium is practically non-extract-able by an organic solvent. As a result, neptunium is not well separated and remains distributed in both organic and aqueous extraction phases. The aim of this study was to develop or enhance the understanding of several key topics governing the redox behavior of neptunium in nitric acid medium, which are of vital importance for the engineering design of industrial-scale liquid-liquid separation systems.In this work, reactions of neptunium(V) and (VI) with vanadium(V) and acetohydroxamic

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acid - two redox agents envisioned for adjusting the neptunium oxidation state in aqueous separations – were studied in order to determine their kinetic characteristics, rate laws and rate constants, as a function of temperature and nitric acid concentration. Further were analyzed the interactions of neptunium(V) and (VI) with nitrous acid, which is formed as a product of radiolytic degradation of nitric acid caused by high levels of radioactivity present in such systems. Once HNO3 is distributed between both the aqueous solutions and organic solvent, nitrous acid is also formed in both phases and has a key influence on redox speciation of neptunium; therefore, the effects of gamma-radiation on the redox speciation of neptunium were investi-gated. The work also includes the results of examination of scavenging of nitrous acid by hydrogen peroxide, which is gener-ated along with nitrous acid during radiolysis of aqueous solutions of nitric acid, and also by chemical reactions with added scavenging agents (methylurea, acetohydroxamic acid).

Microstructure of Radiation Damage in the Uranium Film and its Backing Materials Irradiated with 136 MeV 136Xe+26Supriyadi Sadi for the degree of Doctor of Philosophy in Radiation Health Physics presented on March 14, 2012 Abstract approved: Alena Paulenova

Microstructure changes in uranium and uranium/metal alloys due to radiation damage are of great interest in nuclear science and engineering. Titanium has attracted attention because of its similarity to Zr. It has been proposed for use in the second generation of fusion reactors due to its resistance to radiation-induced swelling. Aluminum can be regarded as a standard absorbing material or backing material for irradiation targets. Initial study of thin aluminum films irradiation by 252Cf fission fragments and alpha particles from source has been conducted in the Radiation Center, Oregon State University. Initial study of thin aluminum films irradiation by 252Cf fission fragments and alpha particles from source has been conducted in the Radiation Center, Oregon State University. Aluminum can be regarded as a standard absorbing material or backing material for irradiation targets. The AFM investigation of microstructure damages of thin aluminum surfaces revealed that the voids, dislocation loops and dislocation lines, formed in the thin aluminum films after bombardment by 252 Cf fission fragments and alpha particles, depends on the irradiation dose.

The void swelling and diameter and depth of voids increase linearly with the fluence of particles and dose; however, the areal density of voids decreased when formation of dislocation loops began. Study of deposition of uranium on titanium backing material by molecular plating and characterization of produced U/Ti film has been performed. The U/Ti film has smooth and uniform surfaces but the composition of the deposits is complex and does not include water molecules which probably involve the presence of U (VI). A possible structure for the deposits has been suggested. X-ray diffraction pattern of U/Ti films showed that The U/Ti film has an amorphous structure. Uranium films (0.500 mg/cm2) and stack of titanium foils (thickness 0.904 mg/cm2) were used to study the microstructural damage of the uranium film and its backing material. Ir-radiation of U/Ti film and Ti foils with 1 MeV/u (136 MeV) 136Xe+26 ions in was performed in the Positive Ion Injector (PII) unit at the Argonne Tandem Linear Accelerator System (ATLAS) Facility at Argonne National Laboratory, IL.

Pre- and postirradiation of samples was analyzed by X-ray diffraction, Scanning Electron Microscopy/Energy Dispersive Spectroscopy (SEM/EDS) and Atomic Force Microscopy (AFM). The irradiation of U/Ti films results in the formation of a crystal-line U4O9 phase and polycrystalline Ti phase. Annealing of the thin uranium deposit on a titanium backing at 800o C in the air atmosphere condition for an hour produced a mixture of UO3, U3O8, Ti, TiO and TiO2 (rutile) phases; meanwhile, annealing at 800oC for an hour in the argon environment produced a mixture of ‐-U3O7, Ti and TiO2 (rutile) phases. These phenomena indicate that the damage during irradiation was not due to foil heating. Microstructural damage of irradiated uranium film was dominated by void and bubble formation.The microstructure of irradiated titanium foils is characterized by hillocks, voids, polygonal ridge networks, dislocation lines and dislocation networks. Theory predicts that titanium undergoes an allotropic phase transformation at 882.5 °C, changing from a closed-packed hexagonal crystal structure (‐-phase) into a body-centered cubic crystal structure (‐- phase). When the titanium foils were irradiated with 136MeV 136Xe+26at beam intensity of 3 pnA corresponding to 966oC, it was expected that its structure can change from hexagonal-close packed (hcp) to body-centered cubic (bcc). However, in contrast to the theory, transformation from ‐-Ti (hcp) phase to fcc-Ti phase was observed. This phe-nomenon indicates that during irradiation with high energy and elevated temperature, the fcc-Ti phase more stable than the hcp-Ti Phase.

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Thesis Abstracts

Performance of Hybrid Methods for Representative Nonproliferation Problems.Aaron M. Bevill for the degree of Master of Science in Nuclear Engineering presented on May 13, 2011.Abstract approved: Todd S. Palmer

Adjoint-derived weight windowing is a hybrid deterministic/Monte Carlo method to simulate radiation transport. In adjoint-derived weight windowing, a deterministic adjoint solution is used to create weight windows for a Monte Carlo simulation.

The intent of this work is to identify factors that reduce the Figure of Merit (F OM)of Monte Carlo simulations using adjoint derived weight windowing. The method used in this study pairs Transpire's deterministic code Attila TM and MCNP5. Two computationally dicult source/detector problems of interest to nuclear nonproliferation are used as case studies to determine the factors that aect the F OM.Test Case I is an active interrogation problem similar to many radiography problems. The model is used in two sets of trials: in the rst, the quality of the deterministic adjoint solution is varied to observe the eect of adjoint solutionquality on the F OM. In the second, the shielding density is varied to determine the eect of increased shielding on the F OM.

Results from Test Case I suggest that weight windows that decrease monotonically along relevant paths from the source to the detector maximize the F OM. The results also suggest that weight windowing is susceptible to false convergence thatcould be avoided using a dierent hybrid method, such as the Local Importance Function Transform (LIFT). A more sophisticated method for generating weight windows relevant to the forward Monte Carlo simulation is described for future work.

Test Case II is a detailed model of a detector array passively interrogating a uranium hexauoride cylinder. Test Case II is used to test the eect of appropriate source biasing on the F OM. Results from Test Case II conrm prior work, that source biasing is important for problems in which the adjoint function varies widely in the source domain. Since spectral information from the detector is very useful for nonproliferation purposes, a new use of the forward weighted consistent adjoint driven importance sampling (FW-CADIS) method is described to model the energy-dependent ux in a region of interest. Properly modeling Test Case II also requires the use of rejection sampling of the source position paired with source biasing, which currently cannot be used together in MCNP5. The new use for the FW-CADIS method and a method to allow the use of rejection sampling with source biasing are described for future work.

The Investigation of Dipicolinic Acid Diamide Derivatives for the Separation of Actinides and Lanthanides using Solid Phase Extraction Chromatography Corrie D. Black for the degree of Master of Science in Radiation Health Physics presented on May 19, 2011. Abrstract approved: Alena Paulenova

An alternative extractant for the TRUEX/UNEX process was investigated in solid phase extraction chromatography. The para and ortho isomers of diamides derivatives of dipicolinic acid (N,N’-diethyl-N,N’-ditolyl-dipicolinamide, EtTDPA) have been found in the past to effectively separate actinides from lanthanides in solvent extraction and were successfully impregnated on two uncoated, inert macroporous polymeric support resin types. The ortho resins consistently yielded higher extractions while the para resin consistently yielded higher Am/Eu separations. These findings were consistent with past solvent extraction experiments and suggest the versatility of these extractants in a variety of applications. The use of complexing agents were also considered both in the eluent and on the resin and found to change the extraction properties of the resin enough to warrant further investigation.

RELAP5-3D Modeling of ADS Blowdown of MASLWR FacilityChristopher Jordan Bowser for the degree of Master of Science in Nuclear Engineering presented on June 13, 2012.Abstract approved: Brian G. Woods

Oregon State University has hosted an International Atomic Energy Agency (IAEA) International Collaborative Standard Problem (ICSP) through testing conducted on the Multi-Application Small Light Water (MASLWR) facility. The MASLWR facility featuresa full-time natural circulation loop in the primary vessel and a unique pressure suppression device for accident scenarios. Automatic depressurization system (ADS) lines connect the primary vessel to a high pressure containment (HPC) which dissipates steam heat through a heat transfer plate thermally connected to another vessel with a large cool water inventory. This feature drew the interest of the IAEA and an ICSP was developed where a loss of feedwater to the steam generators prompted a depressurization of the primary vessel via a blowdown through the ADS lines.

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The purpose of the ICSP is to evaluate the applicability of thermal-hydraulic computer codes to unique experiments usually outside of the validation matrix of the code itself. RELAP5-3D 2:4:2 was chosen to model the ICSP. RELAP5-3D is a best-estimatecode designed to simulate transient fluid and thermal behavior in light water reactors. Modeling was conducted in RELAP5-3D to identify the strengths and weaknesses of the code in predicting the experimental trends of the IAEA ICSP. This extended to nodalization sensitivity studies, an investigation of built-in models and heat transfer boundary conditions. Besides a qualitative analysis, a quantitative analysis method was also performed.

Improvements in the Dosimetric Models of Selected Benthic Organisms.Emily Amanda Caffrey for the degree of Master of Science in Radiation Health Physics presented on October 2, 2012.Abstract approved: Kathryn A. Higley

The International Commission on Radiological Protection (ICRP) has modeled twelve reference animal and plant (RAP) species using simple geometric shapes in Monte–Carlo (MCNP) based simulations. The focus has now shifted to creating voxel phantoms of each RAP to advance the understanding of radiation interactions in nonhuman biota. The work contained herein presents results for the voxel phantom of the Dungeness crab, Metacarcinus magister, the Sand Dab, Limanda limanda, and the brown seaweed, Fucus vesiculosus, and details a generalized framework for creating voxel phantoms of the other RAPs. Absorbed fractions (AFs) for all identified organs were calculated at several discrete initial energies: 0.01, 0.015, 0.02, 0.03, 0.05, 0.1, 0.2, 0.5, 1.0, 1.5, 2.0, and 4.0 MeV for photons and 0.1, 0.2, 0.4, 0.5, 0.7, 1.0, 1.5, 2.0 and 4.0 MeV for electrons. AFs were then tabulated for each organ as a source and target at each energy listed above. AFs whose error exceeded 5% are marked with an underline in the data tables; AFs whose error was higher than 10% are shown in the tabulated data as a dashed line. The AF’s were highly dependent on organ mass and geometry. For photons above 0.5 MeV and electrons above 0.2-0.4 MeV a nontrivial amount of energy escapes the source organ.

Retrospective Thermal Neutron Fluence Determination Using Lithium-Ion Mobile Telephone Batteries.Nick J. Dorrell for the degree of Master of Science in Radiation Health Physics presented on June 17, 2011. Abstract approved: David M. Hamby

Fortuitous dosimeters are radiosensitive objects carried by an individual who was exposed to radiation. These objects can be analyzed some time after exposure and the results can be used to aid in calculating radiation fields and doses received by individuals. Items that make good fortuitous dosimeters are those that are consistent in their manufacture and are carried by a large percentage of the population. Some materials are more suitable than others for retrospective dosimetry, depending upon their sensitivity, signal retention (i.e. fading), and the type of radiation to which they respond. The effectiveness and sensitivity of lithium-ion (Li-ion) mobile telephone batteries as fortuitous neutron dosimeters is investigated in this research. Neutron fluences are estimated based upon the activation products formed in batteries during exposure. In the past, objects such as keys and coins were used for retrospective neutron dosimetry. Mobile phone batteries were chosen as possible candidates for dosimeters because of their widespread use by the general population and the observation that most users carry these objects on or near the torso.Lithium-ion mobile-phone batteries were irradiated with neutrons in beam port #4 of the Oregon State University TRIGA® reactor and subsequently analyzed using gamma spectroscopy in order to identify activation products formed, and to determine the linearity of their response to several neutron fluences. Batteries exposed to thermal neutron fluencies ranging from 2.8x108 n·cm-2to 3.4x1010n·cm-2 generated 60Co count rates ranging from 0.022 (±4.5%) cps to 2.890 (±0.6%) cps. Cobalt emerged as an element commonly found in Li-ion battery cathodes as a candidate for neutron activation analysis months to years following their irradiation. This is due to the relatively high cobalt content by weight found in these batteries and its 5.27 year half-life. Thermal neutron fluences were estimated with accuracy ranging from 2% to 23% of actual fluences, with an average accuracy of 12%. The activation of cobalt in the samples was highly linear with fluence (R2=0.995).

Prototyping a Triple-Layer Phoswich Detection SystemChristopher L. Duncan for the degree of Master of Science in Radiation Health Physics presented on June 8, 2011. Abstracts approved: David M. Hamby

Multi-layer optically coupled scintillation based radiation detectors, known as phoswich detectors, have rapidly evolved in recent years. During the same time, digital signal processing has improved radiation discrimination accuracy and enhanced reliability, while reducing complexity and size of traditional analog signal processing methods. A new generation of highspeed radiation detectors that can measure mixed radiation fields has been developed by coupling these advancements. A prototype of one of the first commercially available phoswich detection systems has been analyzed to determine operational

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characteristics. The phoswich detector was analyzed using a variety of radioactive sources across a battery of tests compiled from the literature, Federal government regulations, and end-users specifications. It was found that the phoswich detection system operates equally well in beta particle, gamma-ray, and combined radiation fields. Testing at 5 centimeters demonstrated the phoswich detector’s gamma-ray full-energy-peak intrinsic efficiency to range from 0.64 to 3.25 percent, full-energypeak resolution from 6.29 (1332 keV) to 12.07 (356 keV) percent, and detectable energy range from 30 keV to 2754 keV. Similar testing for beta particles demonstrated an intrinsic efficiency of up to 58 percent. The system did exhibit saturation in radiation fields above 0.008 μCi when used with MATLAB. The phoswich detection system demonstrated that it is quite capable of accurately measuring the type and energy of radiation present in combined beta particle and gamma-ray radiation fields.

An Investigation of Chitosan for Sorption of RadionuclidesVanessa E. Holfeltz for the degree of Master of Science in Radiation Health Physics presented on June 5, 2012.Abstract approved: Alena Paulenova

Chitosan is a biopolymer resulting from the deacetylation of chitin, the second most abundant biopolymer in nature. Chitosan has been successfully used in systems to remove metal ions and other pollutants from wastewater. Chitosan has shownpromise as a sorbent for radionuclides in some aqueous waste streams. The sorption of these radionuclides by chitosan is studied to determine if chitosan could be used as a sorbent for aqueous waste streams containing these metals. The effect of various experimental conditions including sorbent particle size, agitation rate, hydration, temperature, pH, metal concentration and sorbent concentration are examined in this study. Results showed that sorption depends on the availability of access sites, controlled by the specific surface area of the sorbent. Sorption was observed to decrease with increasing temperature.The sorption isotherms and kinetics for Co(II), Eu(III) and U(VI) sorption onto chitosan were determined experimentally by batch sorption. Isotherms were fitted using the Langmuir and Freundlich models. Kinetics were modeled using the pseudo-first order, pseudo-second order, Elovich, and intraparticle diffusion models in order to determine possible rate-limiting steps. Most data were well described by the pseudosecond order and Elovich models. Multi-linearity was observed in the intraparticlediffusion model. The sorption capacity of the metals on chitosan was found to follow the order Co < Eu < U.

Accelerating the Convergence of the k-Eigenvalue Problem using a Coarse Mesh Finite Differencing Scheme in Cylindrical GeometryAndrew J. Hummel for the degree of Master of Science in Nuclear Engineeringpresented on December 17, 2010.Abstract approved: Todd S. Palmer

Reactor modeling is largely limited by the computational time required to perform accurate full core calculations. There are many different methods and techniques employed in different reactor simulation codes, but properly modeling all of the physics that takes place in the system requires extensive computational effort. The Coarse Mesh Finite Differencing (CMFD) technique was proposed in 1983 by Kord Smith as a spatial acceleration scheme to combat this problem. It is a nonlinear iterative method that reduces the storage requirement of the problem by reducing the number of unknowns in the system. It is a diffusion based method that can be applied to diffusion and transport problems. The macroscopic cross sections and diffusion coefficients are homogenized accordingly to a coarser mesh. The reaction rates in the new coarse mesh cells are preserved along with the higher order surface currents. A current correction coefficient is introduced to maintain these currents. The finite differencing numerical approximation can then be applied to the 3-Dimensional steady-state neutron diffusion equation resulting in a linear system of equations that is readily solvable.

This project has involved implementing the CMFD Acceleration into the reactor simulation code PARCS. PARCS was developed jointly between Purdue University and the University of Michigan to model Pebble Bed Modular Reactors. Although PARCS contains numerous numerical techniques, the focus of this research has been to accelerate the Fine Mesh Finite Differencing approximation in cylindrical geometry. Cylindrical coordinates prevents a higher order nodal method from being used as the primary scheme, but it allows for a more accurate representation of the core. The CMFDA was employed using a 2 group cross section library for fast and thermal neutrons.

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The Iterative Thermal Emission Monte Carlo Method for Thermal Radiative Transfer.Alex R. Long for the degree of Master of Science in Nuclear Engineering presented on June 1 2012.Abstract approved: Todd S. Palmer

For over 30 years, the Implicit Monte Carlo (IMC) method has been used to solve challenging problems in thermal radiative transfer. These problems are typically optically thick and diusive, as a consequence of the high degree of \pseudo-scattering” introduced to model the absorption and reemission of photons from a tightly-coupled, radiating material. IMC has several well-known features which could be improved: a) it can be prohibitively computationally expensive, b) it introduces statistical noise into the material and radiation temperatures, which may be problematic in multiphysics simulations, and c) under certain conditions,solutions can be unphysical and numerically unstable, in that they violate a maximum principle { IMC calculated temperatures can be greater than the maximum temperature used to drive the problem.

We have developed a variant of IMC called \iterative thermal emission” IMC, which is designed to be more stable than IMC and have a reduced parameter space in which the maximum principle is violated. ITE IMC is a more implicit method version of the IMC in that it uses the information obtained from a series of IMC photon histories to improve the estimate for the end of time-step material temperature during a time step. A better estimate of the end of time-step material temperature allows for a more implicit estimate of other temperature dependent quantities: opacity, heat capacity, Fleck Factor (probability that a photon absorbed during a time step is not reemitted) and the Planckian emission source.

The ITE IMC method is developed by using Taylor series expansions in material temperature in a similar manner as the IMC method. It can be implemented in a Monte Carlo computer code by running photon histories for several sub-steps in agiven time step and combining the resulting data in a thoughtful way. The ITE IMC method is then validated against 0-D and 1-D analytic solutions and compared with traditional IMC. We perform an innite medium stability analysis of ITE IMC and show that it is slightly more numerically stable than traditional IMC. We nd that signicantly larger time-steps can be used with ITE IMC without violating the maximum principle, especially in problems with non-linear material properties. We also compare ITE IMC to IMC on a two-dimensional, orthogonal mesh, x y geometry problem called the \crooked pipe” and show that our newmethod reproduces the IMC solution. The ITE IMC method yields results with larger variances; however, the accuracy of the solution is improved in comparison with IMC, for a given choice of spatial and temporal grid.

Pair Production Treatments for Deterministic Pulse-Height Distribution SimulationsMichael R. MacQuigg for the degree of Master of Science in Nuclear Engineering presented on July 26, 2011.Abstract approved: Todd S. Palmer

This thesis presents methods for treating annihilation photon pairs in deterministic pulse height distribution (PHD) simulations. The methods are applied in PHD simulations for monoenergtic sources of 1.6 and 2.6 MeV photons incident on 5 and 10 cm 1-D slabs of germanium, sodium iodide, and lead and theresults are compared with PHD simulations generated using MCNP5. Comparisons show good agreement between the peak area estimates of the deterministic and Monte Carlo codes. Average relative error in peak area estimates compared to the MCNP5 benchmark was 7%: A new treatment for the distribution of energy deposition resulting from group-to-group transfer is introduced that provides limited improvement in resolution when compared to treatments used in previous work [1]. An iteration parameter study is also conducted on slab geometry systems composed of carbon, silicon, germanium, tin, lead, and lead sodium iodide of various thickness. The results indicate a maximum of approximately seven iterations required to converge transport solutions (>95% of escaping boundary current) for spatially uniform distributions of 0.511 MeV photons in 5 cm thick slabs.

Pressure Effects on Density-Difference Driven Stratified Flow: CFD Model of a DCC event in the HTGRJill E. Magnusson for the degree of Master of Science in Nuclear Engineering presented on June 3, 2011Abstract approved: Brian G. Woods

In a Modular High Temperature Gas Reactor (MHTGR), the Depressurized Conduction Cooldown (DCC) event can be separated into three distinct stages: 1) depressurization, 2) air ingress and, 3) natural circulation. During normal operations, the HTGR utilizes forced convection to move the helium coolant through the reactor core. Thus, during normal operations the helium is pressurized to about 7 MPa. As a result of the high pressure system, when a DCC event is initialized, there exists a pressure difference between the helium coolant inside the vessel and the ambient air outside the vessel. After depressurization there exist an air-helium mixture of higher density than the helium in the reactor vessel. This results in the air-helium mixture

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ingressing into the reactor vessel through stratified flow.The High Temperature Test Facility (HTTF), under construction at Oregon State University, is a scaled model of the MHTGR. The HTTF is being built for code validation purposes. This study is to utilize CFD methods to simulate a DCC event in the HTTF. With this CFD simulation the effects of the depressurization stage on the rest of the model will be quantified.

Analysis of the Antineutrino Rate during CANDU Reactor StartupChristopher Matthews for the degree of Master of Science in Nuclear Engineering presented on January 27, 2012.Abstract approved:Todd S. Palmer

Detection systems used to monitor reactor operations are of significant interest as tools for verification of operator declarations. Current reactor site safeguards are limited to visual inspections and intrusive monitoring systems. The recent development of antineutrino detectors may soon allow real-time monitoring from an unobtrusive location. Antineutrinos are produced through beta decay of fission products in the core. The lack of charge and small mass of the antineutrino ensures an extremely low interaction probability with all matter, effectively making the particle impossible to shield. As the fuel isotopic composition changes with burn-up, the primary fission source changes from 235U to 239 Pu. Since differing antineutrino energy spectra are produced by each fissionable isotope, the antineutrino flux will also change as a function of burn-up. Supported by reactor simulations from nuclear codes, antineutrino detectors may provide a window into the reactor core and provide inspectors with tools to verify legitimate operations.This thesis is focused on the antineutrino rate produced by CANadian Deuterium Uranium reactors (CANDU) during startup. A CANDU fuel bundle model was created with the TRITON module from the SCALE6.1 code to calculate isotopic antineutrino rates for a single bundle. A full core CANDU model that incorporates refueling was also created for the first 155 days of operation after startup by using a Python 2.6 script to handle pre- and post-calculations. All simulations were calculated using operational data from Point Lepreau Generating Station produced by proprietary codes for the forthcoming fresh core startup.Dependence of the antineutrino rate on power and bundle replacement was analyzed, with a ±10% change in power causing a ±10% change in antineutrino rate, and the CANDU detector effectively measuring a 10% decrease in power within 9 hours of collection time. Bundle refueling was shown to only slightly modify the antineutrino rate, requiring a target volume more than 20 times larger than the present detector to effectively identify the change due to the bundles refueled over a one week period. Diversion of 15% or more of the total amount of bundles can be effectively measured by the CANDU detector within a one month counting period.

Use of GIS Software to Map Contaminant Distributions and Determine Integrated Dose for Purposes of Assessing Impact to BiotaMargaret C. Myers for the degree of Master of Science in Radiation Health Physics presented upon July 13, 2012Abstract approved:Kathryn A. Higley

The objective of this research was to estimate the radiological impact on various nonhuman biotas by the Fukushima Daiichi Nuclear power plant radiation release resulting from Japan’s tsunami in March 2011 consistent with the recent recommendations of the International Commission on Radiological Protection. Soil concentration data given by Japan’s Ministry of Education, Culture, Sports, Science and Technology in Japan (MEXT) were used to approximate doses to various organisms. Cumulative doses and dose rates were plotted in ArcGIS 10, geographic information system (GIS) software, and Kriging interpolations were performed between the sampling points. The conclusion of this preliminary investigation that there appears to be the potential for adverse biological impacts of the studied biota; however, the magnitude of the impact will require further investigation.

Establishment of Concentration Ratios for Riparian and Shrub Steppe Areas of the Eastern Washington Columbia Basin.Jonathan Bamberger Napier for the degree of Master of Science in Radiation Health Physics presented on September 12, 2012. Abstract approved: Kathryn A. Higley

Concentration ratios are used to determine the transfer of nuclides from soil to biota to fauna. Some nuclides have limited associated data though, this has not prevented predictions from being performed at sites without associated data. These ratios are site specific and are not fully applicable when applied to other locations. A recent literature review for a waste repository performance assessment determined that a significant portion of the environmental data was based on recursively published material. To address this deficiency neutron activation analysis (NAA) was used to determine concentration ratios of certain

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biota. Three sites, two riparian and one shrub steppe, were sampled in the eastern Washington Columbia basin, near the Hanford site. Two hundred and fifty eight samples of opportunity were collected. This included 15 soil samples, 10 water and sediment samples, 40 different species of biota, and 2 terrestrial animal species and 3 aquatic animal species. These samples were prepared for NAA by drying, weighing, and in certain cases ashing to improve detection efficiency. After activation, the samples were placed in a HPGe detector to perform spectral analysis. The concentration results of 26 elements of interest are presented, along with newly established concentration ratios for all of the species sampled.

CFD Analysis of Pressure Differentials in a Plate-Type Fuel AssemblyGable D. Roth for the degree of Master of Science in Nuclear Engineering presented on June 6th2011Abstract approved: Brian G. Woods

The Hydro-Mechanical Fuel Test Facility (HMFTF) is being built at Oregon State University to evaluate fluid flow through plate-type fuel assemblies. The first plate assembly that will be examined in the facility is the Generic Test Plate Assembly (GTPA). The GTPA consists of an array of six parallel flat plates, 24 inches long, forming seven flow channels. The plates are a total of 4 inches wide and 0.05 inches thick with 0.25 inches of the plate edge being imbedded in the side plate making a flow channel of 3.5 inches wide. The height of the flow channels is adjustable. A support comb is used to stiffen the free edges of the fuel plates. The Star-CCM+ CFD tool was used to analyze fluid flow through the GTPA with channels of equal height (0.075 inches) except for the middle channel which was 0.125 inches high. Using standard CFD practices the mesh type, mesh size, and turbulence model were selected. Using different boundary conditions, consisting of three flow rates with a fixed temperature and three temperatures, with the flow rate fixed at one of the three analyzed flow rates, the pressure differentials between the channels were analyzed to determine the possibility of plate deflection. The analysis revealed that the pressure difference between the channels increased with increasing volumetric flow rate. The results also indicate that as the system temperature increased the pressure differential between the channels decreased slightly. Velocity results were compared to Miller’s critical velocity and indicate that plate deflection is not expected to occur at the inlet of the channel due to the stiffening caused by the presence of the support comb.

Comparison of HEU and LEU Neutron Spectra in Irradiation Facilities at the Oregon State TRIGA®ReactorRobert Schickler for the degree of Master of Science in Nuclear Engineering presented on October 01, 2012.Abstract approved: Wade R. Marcum

In 2008, the Oregon State TRIGA®Reactor (OSTR) was converted from highlyenriched uranium (HEU) fuel lifetime improvement plan (FLIP) fuel to low-enriched uranium (LEU) fuel. This effort was driven and supported by the Department of Energy’s (DoE’s) Reduced Enrichment for Research and Test Reactors (RERTR) program. The basis behind the RERTR program’s ongoing conversion effort is to reduce the nuclear proliferation risk of civilian research and test reactors. The original intent of the HEU FLIP fuel was to provide fuel to research reactors that could be utilized for many years before a necessary refueling cycle.As a research reactor, the OSTR provides irradiation facilities for a variety of applications, such as: activation analysis, fission-track dating, commercial isotope production, neutron radiography, prompt gamma characterization, and many others. In order to accurately perform these research functions, several studies have been conducted on the HEU FLIP fuel core to characterize the neutron spectra in various experimental facilities of the OSTR. As useful as these analyses were, they are no longer valid due to the change in fuel composition and the resulting alteration of core performance characteristics. The purpose of this study is to characterize the neutron spectra in various experimental facilities within the new LEU core so as to provide data that is representative of the OSTR’s current state.

Predicting Antineutrino Source Terms from a High Temperature Gas ReactorAndra L. Shaughnessy for the degree of Master of Science in Nuclear Engineering presented on April 10, 2012.Abstract approved:Todd S. Palmer

Since the 1990s, researchers around the world have been creating antineutrinodetectors for monitoring power reactors. These detectors have been deployed atlight water reactors and are able to determine power levels and burn up throughouta fuel cycle. This technology could allow the IAEA to monitor LWRs remotely andunobtrusively to determine if they are operating using normal parameters. Verysoon, the next generation of detector will be deployed at a CANDU reactor for atrial operation.While physical observation of these detectors is necessaryl in determining theirusefulness, reactor physics simulations have proven to be very accurate in theirprediction of detector performance. Since there are many designs still in development, reactor physics simulations are the only way to determine the ecacyof the detector technology. In addition to

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this, reactor simulations are the bestway to evaluate the detector technology to ascertain its usefulness during diversionscenarios.

In this research, antineutrino source terms were calculated for a High Temperature Gas Cooled Reactor core. These source terms were a function of power leveland initial enrichment. SCALE6.1, developed by Oak Ridge National Laboratory,was used to calculate the isotopic inventory in the core as a function of depletion.These fertile and ssile isotopics, along with the ssion cross-section and number ofantineutrinos emitted per ssion, were used to predict the antineutrino source ratefor the core. It was found that changing the power yields a linear response from the antineutrino source term. By increasing the power by ve percent, the source term also increased by ve percent. Substantial changes in the initial enrichmentalso lead to a detectable change in the antineutrino source term.

Benchmarked Simulation of Antineutrino Source Terms for Light Water Reactors during Normal Operation and Diversion ScenariosElanchezhian Somasundaram for the degree of Master of Science in Nuclear Engineering presented on October 7, 2011.Abstract approved:Todd S. Palmer

Detection of reactor antineutrinos for non-proliferation applications has been researched extensively across the globe and is considered as a potential technology to remotely monitor reactor operations without any intrusions to reactor components. Reactor antineutrino detection experiments have been conducted in the past and have proven successful in detecting the changes in antineutrino source terms due to power level changes and to the changes due to fuel depletion within the core. However, the detector technology is still in its primitive stage to be successfully deployed for nonproliferation purposes. Simulation of reactor antineutrino signatures is vital to verify the experimental measurements. They also provide an insight into detector configurations required to monitor different reactor types and potential fuel diversion scenarios. In this thesis, the simulation of antineutrino signatures of light water reactors (LWRs) using industry standard reactor simulation tools, CASMO-4 and SIMULATE-3, is studied. Three different LWR reactors have been modeled and different diversion scenarios involving uranium di-oxide (UO2) and mixed oxide (MOX) fuel have been simulated. The simulation results are also benchmarked with the antineutrino counts measured by the SONGS1 antineutrino detector that was used to monitor the operation of San Onofre Nuclear Generating Station (SONGS), unit 2, cycle-13 during the period 2004-2005. A three-dimensional simulation of the reactor cores has been performed for improved accuracy of the detector response. Further, full core simulation allows reactor modeling without detailed information about the power histories of individual fuel assemblies, which was the case in previous research.

Extending the Discrete Maximum Principle for the IMC Equations. Paul W. Talbot for the degree of Master of Science in Nuclear Engineering pre sented on September 28, 2012. Abstract approved:Todd S. Palmer

The implicit Monte Carlo (IMC) method [16] for radiative transfer, developedin 1971, provides numerical solutions to the tightly-coupled, highly-nonlinear ra diative heat transfer equations in many physical situations. Despite its popularity,there are instances of overheating in the solution for particular choices of timesteps and spatial grid sizes. To prevent overheating, conditions on teh time stepsize Δt have been sought to ensure that the implicit Monte Carlo (IMC) equationssatisfy a maximum principle. Most recently, a discrete maximum principle (DMP)for teh IMC equations has been developed [32] that predicts the necessary timestep size for boundedness given the spatial grid size. Predictions given by thisDMP assumed equilibrium thermal initial conditions, was developed using pseudoanalytic and symbolic algebra tools that are computationally expensive, has onlybeen applied to one-dimensional Marshak wave problems, and has not consideredthe evolution of the DMP predictions over multiple time steps. These limitationsrestrict the utility of the DMP predictions.We extend the DMP derivation to overcome these limitations and provide analgorithm that can be introduced into IMC codes with minimal impact on simu lation CPU time. This extended DMP effectively treats non-equilibrium thermal initial conditions, decreases calculation time by using multigroup approximations in frequency, considers multiple spatial dimensions with an arbitrary number of neigh boring sources, and overcomes inherent difficulties for the DMP in time-dependentproblems.

Disequilibrium in the initial conditions is introduced through a redefinition ofexisting terms from [32] to different radiation and material temperatures on thefirst time step. This results in a limiting DMP inequality similar in form to theoriginal. Multifrequency approximations are then applied by assuming separationof variables. Energy deposition from multiple sources is assumed to follow linear superposition and the DMP from [32] is re-derived to incorporate multiple incident

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sources of energy in multiple dimensions. Lastly, an inherent flaw in the DMP re sulting in poor predictions when temperature varies slowly over a region is overcome by developing a threshold temperature difference, above which the DMP operates.We have numerically implemented these improvements and validated the results against IMC solutions, showing the predictive capacity of the more general DMP algorithm. We find the disequlibrium conditions to be properly incorporated intothe DMP, and multifrequency approximations to be accurate over a large range oftime step and spatial grid sizes. The linear superposition assumption is generallyvery accurate, but infrequently leads to DMP predictions which are not conser vative. We also demonstrate that the temperature difference threshold prevents inaccurate predictions by the DMP while preserving its functionality.

The Effects of Radiolysis and Hydrolysis on the Stability of Extraction Systems for Minor Actinides Emily C. Wade for the degree of Master of Science in Radiation Health Physics presented on November 24, 2010. Abstract approved: Alena Paulenova Industrial reprocessing of irradiated nuclear fuel (INF) is one of the most complex procedures performed on a large scale; the process is intricate due to the mix of radionuclides present in INF. As a global trend for nuclear power and reprocessing continues, research is geared toward optimizing the extraction of targeted radionuclides from the assortment of byproducts with the aim to decrease the radioactivity of the stored waste and recycle the targeted radionuclides in mixed oxide fuel. Currently, simultaneous separation of radionuclides in one extraction cycle is the leading approach to processing spent nuclear fuel. The process implements a universal extraction mixture for one-step extraction of all targeted radionuclides, followed with selective stripping of individual metals with aqueous solutions.

“Group Extraction of Actinides and Fission Products”, one of the top approaches in this effort, is based on a modification of the Universal Extraction (UNEX) solvent. The process is currently performed using an extraction mixture composed of the organic complexant octyl(phenyl)-N,N-diisobutylcarbamoyl methylphosphine oxide (CMPO), the cation exchanger, chlorinated cobalt dicarbollide (CCD), and polyethyleneglycol (PEG) in the diluent phenyltrifluoromethyl sulfonate (FS-13). The solution extracts both fission products and actinides. However, this composition was initially developed for low level waste, and it is of limited use when it comes to processing solutions containing large amounts of actinides and lanthanides, such as in INF. The current process is restricted by the limited solubility of CMPO and its complexes with metals. In order to more effectively process acidic aqueous solutions containing large amounts of actinides and lanthanides, modifications must be made to the current composition of the mixed solvent. Previously, it has been shown that diamides of dipicolinic acid have increased capacity to extract actinide and lanthanide metals, when compared to CMPO. Furthermore, these diamides exhibit synergistic behavior with CCD to extract cesium, strontium, and trivalent metals. This study investigated the possibility of replacing CMPO with diamides of 2,6-pyridinedicarboxylic acid (dipicolinic acid) with N,N’ diethyl N, N’ ditolyl dipicolinamide (EtTDPA). Stability of selected diamides was tested in a simulation of the harsh environment of dissolved nuclear fuel in order to determine their viability for use in reprocessing. Acidic hydrolysis and radiolysis conditions are always present in such systems. EtTDPA, in solution with CCD and FS-13, were exposed to nitric acid and irradiation by gamma photons (Co-60). The stability of EtTDPA was determined through analysis of distribution ratios for Am-241 and Eu-252 and Eu-254 extracted from acidic aqueous solutions. Mass spectrometry was also employed to determine if any structural changes occurred in the chemicals as a result of hydrolysis or radiolysis. Results showed that Et(o)TDPA was the most stable isomer across radiolysis, and also withstood hydrolysis.

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Baccalaureate Honors Thesis Abstracts

Uranium Uptake for Capsicum Annuum in Various Growing Conditions.Jenelle E. Parson for the degree of Honors Baccalaureate of Science in Nuclear Engineering presented on June 4, 2012.Abstract approved:Kathryn Higley

Uranium is a naturally occurring radioactive element that is commonly found in water, soil, and rock. It can also occur in elevated concentrations in ore bearing bodies and be concentrated through human activities. This thesis focuses on uranium uptake for Capsicum annuum for three growing conditions. These include a set of plants grown in hydroponic systems and two traditionally grown, one with constant contamination and one with a single acute spike. In addition to the dose scenarios there are two controls, a hydroponic system and a traditionally grown. Mature pepper plants were purchased. Commercially grown plants were cropped to remove mature seed pods; the plants were then allowed to grow (uncontaminated) until new peppers were just forming. At that point, uranium as uranyl acetate was added. Uranyl acetate was dissolved in water to a concentration of 50 µg/mL for the hydroponic and the constant contamination group. The one-time spike contained the same amount of uranium asreceived by the total constant contamination traditionally grown plants, but applied in one application such that concentration was 700 g/mL applied in 50 mL. The peppers collected prior and post contamination were analyzed using neutron activation analysis (NAA). Uranium concentration ratios using a plant-to-soil and a plant-to-water ratio were developed for the different growing conditions. While uranium uptake into the pepper plant fruit was comparable for each condition, the uranium uptake into the hydroton for the hydroponic systems was considerably less, yielding a lower concentration ratio when using soil concentrations. When the concentration ratio was calculated using the water uranium concentration, resulting concentration ratios were similar for all growing conditions, but overall higher for traditionally contaminated systems. This was due to overall lower uranium concentrations in water for traditionally contaminated systems. This suggests that for hydroponic systems, the concentration ratio using soil concentrations may not be appropriate for comparison with traditional systems and it may be more appropriate to use water concentrations.

Comparison and Cultural Review of Biosphere Modeling Using Foliar Uptake of Technetium-99 in Radishes.Kayla L. Pierson for the degree of Honors Baccalaureate of Science in Chemical Engineering and Honors Baccalaureate of Arts in International Studies of Chemical Engineering presented on May 13, 2011. Abstract approved: Kathryn Higley

Biosphere models predict the transport of radionuclides in the environment with an end goal of assessing the possible risk to humans. Little data exists to support thesemathematical biosphere models. The objectives of this work were to verify foliar uptake in biosphere models using experimental data, compare existing biosphere models based on cultural differences, and contributing new values to the literature. Radishes were grown and their leaves were contaminated by a single deposition of technetium-99 to assess the amount of radionuclides transferred to the roots. Liquid scintillation counting was used to determine the radioactivity of the samples at harvest. The radish roots had concentrations between 0 and 500 Bq/g which was on the same order of magnitude as the ANDRA and EPRI model predictions. The Studsvik model prediction was three orders of magnitude higher than the experimental values and was not confirmed. The EPRI, ANDRA, JGC and Studsvik models were compared and contrasted based on location, diet, and construction which led to differences in dose predictions of 0-70 Sv/y.

The Control and Safety Analysis of a Small Fission Surface Power Reactor.Noel B. Nelson for the degree of Honors Baccalaureate of Science in Nuclear Engineering presented on June 5, 2012. Abstract approved: Andrew Klein

The NKUA1 is a Small Fission Surface Power (SFSP) space reactor intended for use in upcoming missions to Mars and the moon between the years 2020-2030. The concept of the reactor was created by Dr. Lee Mason and his research team in a joint effort between the Department of Energy (DOE) and the National Aeronautics and Space Administration (NASA); complete design of the reactor core was developed by Dr. David Poston at Los Alamos National Laboratories. The Monte Carlo Neutron-Particle (MCNP) Transport code script of the NKUA1 core was used to perform a variety of criticality safety related calculations. The analysis was conducted to compare the effectiveness of control rods versus control drums in providing a safe shutdown configuration. The control drums proved to be more efficient in delivery of negative reactivity, conserved more space than the control rods, and have been found to be highly effective in space reactors. A safety analysis was also performed on the NKUA1 concerning its function in specific accident scenarios. In each accident scenario, the reflector and control drums were removed and the reactor was enclosed in a common naturally occurring material. The reactor was found to be safely shut down in each scenario, with acceptable shutdown margins being greater than $10.00

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Current areas of research interest in nuclear engineering are oriented toward advanced power reactor development, thermal hydraulics, numerical methods and analysis and neutron scattering. Specific areas include nuclear reactor engineering, experimental and thermal hydraulics, nuclear power generation, reactor physics, nuclear criticality safety, radiation transport computational methods development, nuclear waste management, in-core fuel management, nuclear instrumentation, radioisotope production, radiation shielding, space nuclear power, research reactor utilization and development, medical physics, and materials investigations using neutron beams.

Areas of research interest in Radiation Health Physics include environmental health physics, radioactive material transport, research reactor health physics, radiation detection methods, instrumentation development, radiation shielding, environmental monitoring and assessment, radiation dosimetry, emergency response planning, and high-and low-level waste management.

Reserach in radiochemistry focuses on analytical chemistry in nuclear technology, separtion methods and fuel cycle chemistry, and enviornmental radiochemisty. Our current medical physics research is oriented toward theraputic medical phsyics, which is the clinical application of radiation to treat disease.

Faculty research evolves over time and is generally dictated by the availability of funding. Current research in the Department of Nuclear Engineering and Radiation Health Physics covers a wide range of topics including:

Nuclear Reactor Thermal Hydraulics: A wide variety of nuclear reactor thermal hydraulics problems have been investigated at Oregon State University. These include the development of a library of best estimate thermal hydraulic computer codes for nuclear reactor safety analysis, experimental studies of the mixing of reactor fluids in reactor relevant geometries, experimental studies to characterize a variety of two-phase flow patterns, the analysis of countercurrent flooding

Research Areas

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behavior in reactor geometries, the analysis of condensation induced water hammers, and a study of the effects of fluid particle interactions on interfacial transfer and flow structure.

Advanced Plant Experiment: NERHP has constructed a 1/4 scale test facility to assess the performance of the new passive safety systems incorporated into Westinghouse’s next generation of nuclear power plant, the AP1000. The test facility includes all of the design features of the actual AP1000 with the exception that electric heater rods, rather than nuclear fuel, are used to generate core heat. The OSU AP1000 is capable of continuous operation at 600 kW and includes over 600 scientific instruments for data collection. A state-of-the-art control system and data acquisition system are used to control, monitor and record the performance of the various gravity driven safety systems. Engineers from the US Nuclear Regulatory Commission, the US Department of Energy, Westinghouse, the Idaho National Engineering and Environmental Laboratory, and the Electric Power Research Institute have been on site at the Radiation Center during different phases of testing. OSU nuclear engineering researchers have also participated in designing tests performed in Italy and Japan. The OSU tests are the only AP1000 integral system tests to be performed in the United States.

Hydro-Mechanical Fuel Test Facility: NERHP has constructed a large scale thermal hydraulic separate effects test loop. The HMFTF is designed to hydraulically test in-core and auxiliary nuclear reactor components under extreme hydraulic loading conditions. The HMFTF is currently being utilized to support the qualification of a new, prototypic fuel material to be employed within a variety of U.S. and foreign research reactors as well as potentially utilized within inherently safe nuclear power plant designs. The HMFTF operates over a wide range of thermal hydraulic conditions in an isothermal, subcooled state including flow rates ranging from 0 – 101 liters per second, system pressures ranging from atmospheric to 4.2 MPa, and fluid temperatures ranging from atmospheric to 240 degrees Celsius.

Flow Visualization: NERHP is actively supporting the newly spawned efforts to develop quality bench-top scale experiments for the purpose of validating and verifying computational fluid dynamics tools. A group of faculty and students are working within the Laser Imaging of Fluids and Thermal (LIFT) laboratory, utilizing a time-resolved particle image velocimetry system to provide full flow-field information in controlled experiments for various sponsoring organizations.

Computational Multiphysics: Continuing advancements in computational methods and tools enable more rigorous and sophisticated component design and safety analyses accessible to users that operate through personal desktop workstations, whereas traditionally these tools have been limited to only those that have access to supercomputers or clusters. The Department of Nuclear Engineering and Radiation Health Physics is actively participating within the field of computational multiphysics to further advance this ever-expanding field. Specific emphasis within the research group center on thermal-structure and fluid-structure interactions while utilizing COMSOL as well as ABAQUS & Start CCM+.

Skin Dosimetry: A team of faculty and students are currently revising the dosimetry models for the VARSKIN computer code. VARSKIN is maintained by the Nuclear Regulatory Commission; a research contract was recently awarded to the Department to modify and improve the photon and beta dosimetry models for estimating the dose to skin as function of penetration depth. The software infrastructure is also being updated to incorporate a more appropriate program language and easier to use graphical user interfaces.

Multi-Application Small Light Water Reactor (MASLWR) Test Facility: The Department has constructed a test facility to test the performance of the “Multi-Application Small Light Water” (MASLWR). MASLWR is a next generation nuclear power plant that is being examined for future commercial employment. The Test Facility is constructed of all stainless steel components and is capable of operation at full system pressure (1500 psia), and full system temperature (600F). All components are 1/3 scale height and 1/254.7 volume scale. The current testing program is examining methods for natural circulation startup, helical steam generator heat transfer performance, and a wide range of design basis, and beyond design basis, accident conditions. In addition, the MASLWR Test Facility is currently the focus of an international collaborative standard problem exploring the operation and safety of advanced natural circulations reactor concepts. Over 15 international organizations are involved in this standard problem at OSU.

Nuclear Reactor Systems Design: This area examines the overall design features of existing and advanced nuclear power generation systems, including the examination of light water reactor nuclear fuel, core cooling systems, main steam systems, power generation equipment, process instrumentation, containment, and active and passive engineered safety features. General studies of the neutronics of nuclear reactors include the theory of steady state and transient behavior of nuclear

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reactors, including reactivity effects of control rods and fuel, determination of nuclear reaction cross sections, and steady state and transient reactor behavior. Thermal hydraulic studies related to nuclear reactor design include hydrodynamics, conductive, convective and radiative heat transfer in nuclear reactor systems, core heat removal design, and single and two-phase flow behavior. Nuclear criticality safety studies include design and neutronic analysis of storage and transportation facilities for spent fuel and weapons materials.

Very High Temperature Reactor (VHTR) System Design: The Very High Temperature Reactor is a helium cooled nuclear reactor operating at an outlet temperature of 1000°C. This design has been selected as the lead US design for the Next Generation Nuclear Plant. OSU has been tasked by the US Nuclear Regulatory Commission with the development, design and testing of a reduced scale model of the VHTR reference design (both a prismatic and a pebble bed version). It is envisioned that this test facility will be used to obtain high quality data on thermal fluid behavior in the VHTR for the areas that have been identified as challenges to the VHTR design. Design and development activities for the test facility are underway with construction set to completed in 2012.

Advanced Nuclear System Analysis: Nuclear science and technology is applied in a number of power and non-power applications. These include terrestrial as well as space systems that are designed to take advantage of the special nature of nuclear technologies. Fully understanding these systems through advanced analytical techniques is the is the goal of research on this area. One specific example is the analysis of an exciting fast gas cooled reactor design that utilizes fuel that is vented to allow fission products to be removed from the reactor core during operation, thus reducing the source term in an accident situation. Analysis includes modeling to enhance the release of fission products from the fuel and modeling the fission product cleanup system to understand any particular vulnerabilities. Another example is the prospective utilization of advanced computing platforms and simulation tools to provide advanced information to reactor control rooms. A final example is related to space power applications including a radioisotope powered Mars hopper and a fission surface power ground test facility design study.

Numerical Methods: Ongoing research projects include reactor simulations for antineutrino source characterization, radiation transport through stochastic mixtures, analysis of curvilinear geometry characteristic transport methods, and the use of deterministic transport algorithms in radiation detection and medical physics simulations. Other research areas encompass the development of improved iterative techniques and discretizations for unstructured mesh transport and diffusion, and parallel algorithms for particle transport.

Research Reactor Operations and Management: Research reactor management in a highly regulated environment with a limited budget presents many challenges, yet the OSU TRIGA reactor (OSTR) has been widely recognized as a national leader in professionalism and quality. The OSU Department of Nuclear Engineering and Radiation Health Physics is one of only a few programs in the country with onsite access to an operating research reactor. Students are encouraged to be involved in reactor operations. OSU is also currently working on the experimental quantification of the thermal-hydraulic behavior of low enriched uranium (LEU) based fuels for use in high performance research reactors.

Radiation Instrumentation Development: A number of research projects involving the development of radiation detectors and digital readout electronics are ongoing. These projects include the development of beta/gamma coincidence spectrometers for measuring the concentration of xenon radioisotopes in the atmosphere to monitor atmospheric or underground nuclear weapons tests. We are also designing our customized digital pulse processor systems. Comparing with traditional analog pulse processors, digital systems bring several benefits to our experiments; they are more accurate, inexpensive, compact, and more flexible.

Therapeutic Medical Physics: Therapeutic medical physics is characterized as the clinical application of radiation to treat disease.Research is comprised of issues related to generating and delivering radiation to the patient, as well as determining the corresponding radiation dose and biologic tissue response. Research is conducted to improve the precision and accuracy of both brachytherapy (sealed source) and external beam treatment modalities in order to optimize damage to the tumor volume while reducing doses to critical organs. Specific projects include the advancement of dosimetry for radiation treatment planning for both Monte-Carlo and deterministic calculations, development of ultra-low powered wireless in-vivo dosimeters for treatment verification, and assessment of accuracy associated with 4D respiratory gating techniques. Overall, this continually changing field presents exciting, interdisciplinary opportunities in radiation physics, medicine, computer science and mathematics, as well as other specialties of science and engineering.

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Analytical Chemistry in Nuclear Technology: is a multifaceted chemistry, radiobiological chemistry, environmental radiochemistry, production and control of radioisotopes and labeled compounds, nuclear power plant chemistry, nuclear fuel chemistry, radioanalytical chemistry, radiation detection and measurement, nuclear instrumentation and automation, and more.

Separation Methods and Fuel Cycle Chemistry: Advanced separations technology is key to closing the nuclear fuel cycle and relieving future generations from the burden of radioactive waste produced by the nuclear power industry. Nuclear fuel reprocessing techniques not only allow for recycling of useful fuel components for further power generation, but by also separating out the actinides, lanthanides and other fission products produced by the nuclear reaction, the residual radioactive waste can be minimized. The future of the industry relies on the advancement of separation and transmutation technology to ensure environmental protection, criticality-safety and non-proliferation (i.e., security) of radioactive materials by reducing their long-term radiological hazard. Advanced separation techniques for nuclear fuel reprocessing and radioactive waste treatment provides a reference on nuclear fuel reprocessing and radioactive waste treatment.

Environmental radiochemistry: Explores radionuclide chemistry in the natural environment, including aquatic chemistry and the impact of natural organic matter and microorganisms, migration and radioecological behavior of radionuclides, sorption and colloidal reactions. Understanding radionuclide behavior in the natural environment is essential to the sustainable development of the nuclear industry and key to assessing potential environmental risks reliably. Principles of modeling coupled geochemical, transport and radioecological properties, performance assessment considerations related to deep geological repositories, and remediation concepts for contaminated sites.

Uncertainties in Environmental Dose Assessments: A number of areas of environmental dosimetry are being examined using Monte Carlo methods to assess their contribution to dose estimate uncertainties and to determine the most sensitive parameters in environmental dosimetry models. Estimates are then integrated to evaluate our overall understanding of dose estimates to members of the general public resulting from releases of radioactive materials from nuclear facilities.

The Use of Uncertainty in Decision-Making: A recent grant for the Defense Threat Reduction Agency (DTRA) Is allowing researchers in Health Physics to work with the OSU Department of Psychology on a study of how decision-makers utilize uncertainty information in making their decisions. The study focuses on nuclear events and the use of resources, risk assessment, and uncertainty to track and determine the best means of presenting graphical uncertainty products to those charged with incident command following a nuclear release.

Hanford-Related Issues: A number of issues relating to the Hanford Nuclear Reservation are of interest to Oregonians and Oregon state agencies. Those currently under investigation include the transport of radioactive material into and out of the site, and off-site releases of radioactive material via pathways which could impact Oregon. Such pathways include groundwater to the Columbia River and incidents involving airborne releases.

Radioecological Benchmarks: Recent changes in regulations regarding cleanup of radioactive and hazardous waste sites have focused attention on the impact to non-human biota. Staff are investigating methods to adapt existing environmental contaminant transport models to evaluate impacts of cleanup on ecosystems.

Neutron Radiography: Research into the application of radiographic techniques as tools for evaluating in situ contaminant distribution has recently been initiated.

Emergency Response: Work is being conducted in atmospheric modeling, environmental sampling, and pathway analysis for emergency management support with the state of Oregon. A sophisticated transport model is utilized for hazard assessment and models are being developed for remediation management.

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New Facilities

High Temperature Test Facility (HTTF) The HTTF is a 1/4 scale model of the Modular High Temperature Gas Reactor. The vessel has a ceramic lined upper head and shroud capable of operation at 850oC (well mixed helium). The design will allow for a maximum operating pressure of 1.0MPa and a maximum core ceramic temperature of 1600°C. The nominal working fluid will be helium with a core power of approximately 600 kW (note that electrical heaters are used to simulate the core power). The test facility also includes a scaled reactor cavity cooling system, a circulator and a heat sink in order to complete the cycle. The HTTF can be used to simulate a wide range of accident scenarios in gas reactors to include the depressurized conduction cooldown and pressurized conduction cooldown events.

Hydro Mechanical Fuel Test Facility (HMFTF)The HMFTF is a testing facility which will be used to produce a database of hydro-mechanical information to supplement the qualification of the prototypic ultrahigh density U-Mo Low Enriched Uranium fuel which will be implemented into the US High Performance Research Reactors upon their conversion to low enriched fuel. This data in turn will be used to verify current theoretical hydro- and thermo-mechanical codes being used during safety analyses. The maximum operational pressure of the HMFTF is 600 psig with a maximum operational temperature of 450°F.

Facilities

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Current Facilities

1.1 MW TRIGA Mark II Pulsing Research Reactor A water-cooled, swimming pool type of research reactor which uses uranium/zirconium hydride fuel elements in a circular grid array. The reactor is licensed by the U.S. Nuclear Regulatory Commission to operate at maximum steady state power of 1.1 MW, and can also be pulsed up to a peak power of about 3000 MW. The reactor has a variety of irradiation facilities available. We are one of only 21 universities to have a reactor.

ATHRL - Advanced Thermal Hydraulic Research Facilities Incorporates two facilities: Advanced Plant Experiment (APEX), a three story test facility that assess the safety systems of Westinghouse’s next generation of nuclear power plants (AP600, APEX-CE, and AP1000), and the Multi-Application Small Light Water Reactor (MASLWR) test facility, a Generation IV design concept. ATHRL offers excellent opportunities for student research and training in instrumentation, quality assurance, safety, operations, and nuclear and mechanical design.

ANSEL - The Advanced Nuclear Systems Engineering Laboratory The home to two major thermal-hydraulic test facilities—the High Temperature Test Facility (HTTF) and the Hydro-mechanical Fuel Test Facility (HMFTF).

TRUELAB- Laboratory of Transuranic Elements State-of-art radiochemical research laboratory, equipped with a variety of instrumentation for characterization of actinides and fission products and their chemical reactivity with organic and inorganic ligands and evaluation of postirradiation changes in solutions: Vibrational spectroscopy (Nicolet Fourier Transformation Infrared and Raman and FTIR and Raman spectroscopy) which allow to characterization of solid and liquid samples, Microcalorimetry (quantification of chemical thermodynamics of studied processes); UV-Vis and NIR spectroscopy (speciation of irradiated solutions, complexation of actinides in aqueous and organic matrices) with the stop-flow cell and syringe titrator; Dionex Ion-exchange and Finnigan liquid chromatography, potentiometric titration, glove box, electrochemistry (cyclic voltammetry). Preparation of samples for LSC and alpha-and gamma spectrometry. Other Labs and Facilities Cobalt-60 Gamma Irradiator; Neutron Radiography facility; Neutron Activation facility, Gamma and Alpha Spectrometry laboratory; Liquid Scintillation Counter (LSC Perkin Elmer); Radiological Instrument Calibration facilities; Thermoluminescent Dosimetry systems; large inventory of radiation detection instrumentation; student computer laboratory; student nuclear instrumentation laboratory; green house and wet chemistry laboratories.

OHSU Radiation Medicine At OHSU four Varian linear accelerators (one Tomo HD, two Trilogy and one NovalisTX with high definition MLC), one Elekta Synergy and one Varian 2100 are used to provide external beam electron and photon radiotherapy. Image guidance consists of on-board imagers at all LINACs with both kV-kV and cone beam CT capabilities. Calypso radio frequency beacon localization, BrainLab ExacTrac fluoroscopy and VisionRT optical guidance imaging is utilized as part of a full service image guidance program. An in-room diagnostic quality CT scanner is located and mates with NovalisTX table. The department has a Philips Brilliance BigBore CT scanner with respiratory gating capabilities for 4D CT based simulation.

The department also has available a 4D PET CT scanner that can be utilized for biologic functional treatment planning. External beam treatment systems consist of Philips Pinnacle 3, Varian Eclipse, Nomos Corvus, BrainLab iPlan and Monaco system. These systems are used for CT-based 3D treatment planning, inverse modulated radiation therapy (IMRT), dynamic conformal arc therapy, stereotactic body radiotherapy, RapidArc, VMAT and Linac-based radiosurgery. The department uses high-dose rate (HDR) Iridium-192 for the majority of its brachytherapy needs. In addition, brachytherapy sources, and a strontium applicator are kept in the department. Radioactive Iodine-125 seeds and Iridium-192 are ordered for individual cases as needed.

We have an active I-125 eye plaque brachytherapy program for choroidal melanomas with the Casey Eye Institute using the BeBig treatment planning system. We have an interstitial brachytherapy program which includes therapy for prostate cancer, soft tissue sarcoma and even for lung cancers participating in an ACOSOG multi-institutional protocol. We use the Varian Variseed treatment planning system. Intra-operative breast treatments are also offered with the Zeiss Intrabeam device.

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Research Partners

Argonne National LaboratoryDefense Threat Reduction AgencyDepartment of EnergyIdaho National LaboratoryInstitute of Nuclear Power OperationsMitsubishi Heavy IndustriesNational Energy Technology Laboratory Nuclear Regulatory CommissionNuScale Power Inc.URS Energy & ConstructionVanderbilt UniversityWestinghouse Electric Company

CH2M HillDepartment of EnergyIdaho National LaboratoryInstitute of Nuclear Power OperationsNuclear Regulatory CommissionNuScale Power Inc.Oregon Biomedical Engineering InstituteTerraPowerUniversity of Wisconsin MadisonURS Energy & ConstructionVanderbilt UniversityWestinghouse Electric CompanyWood Hole Oceanographic Institution

2011

2012

Department of Nuclear Engineering& Radiation Health Physics

3451 SW Jefferson WayCorvallis, OR 97331

phone: (541) 737-2343fax: (541) 737-0480

ne.oregonstate.edu

department of nuclear engineering and radiation health ... · techniques for particle transport and...

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