February/March 2002

THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY • A DEPARTMENT OF ENERGY FACILITY

Look at FEL upgrade,new research opportunities, tech.transfer possibilities

JLab technicalassociate invents new type oflockout device

JLab physicistwins American PhysicalSociety award

On track and on time: That’s themessage from Fred Dylla, Free-

Electron Laser (FEL) program manag-er, concerning the ongoing upgrade ofthe most powerful device of its kind inthe world. In all, some 50 staff andcontractors are working 50-hour weeksto complete the FEL upgrade by thiscoming October. All the physical ele-ments are slated to be connected byOctober 1, with recommissioningplanned to take place in stagesthroughout 2003.

Engineers plan to install a newinjector that will produce twice theamount of electron beam than is cur-

rently possible. The FEL’s upgraded “wig-gler” will double the fraction of electron-beam energy converted to laser light. Twoadditional cryomodules will be added tothe FEL linear accelerator line, effectivelyquadrupling system energy from the cur-rent 40 million electron volts, or MeV, to160 MeV. Laser power will surge at least10-fold, to 10 kilowatts, and may eventu-ally peak near 20 kilowatts.

When all is said and done, nearly theentire FEL will consist of new or upgrad-ed components. “It’s basically 90 percenta new machine,” Dylla says. “We’re keep-ing the injector and one cryomodule. Butthe injector will be substantially modified.And the linac will be enhanced.”

The Journey ContinuesWorld’s best Free-Electron Laserabout to get even better

Continued on page 2

Walter Lacy, Sr. Radio-frequency technician, installsthe coolant hoses on the new100 kW klystrons.

Bob Terrell, Sr. Electronicstechnical associate; WalterLacy, and Chris Kerns, rf tech-nician, discuss design changesto the new 100 kW cathodepower supplies.

by James Schultz

The JourneyContinues . . .

ON TARGET • February/March 20022

Lab beginswork to make

world-class FELeven better Perhaps most importantly,

researchers will literally be able to turna knob in order to select different fre-quencies of light. This “tunability” isof crucial importance for materialsresearch, but also helps scientists bet-ter understand the behavior of particlesat the atomic level and below.

“Tunability for exploration is whatpeople want,” says Gwyn Williams,FEL basic research program manager.“It’s about finding out how materialsbehave at different wavelengths oflight. Because atoms are joined bychemical bonds, they act like springs.Now we can make those springsbounce up and down. In effect, we canhit any note and then watch what hap-pens when we do.”

A variety of companies are interest-ed in the FEL’s commercial potential.Thus far, FEL proof-of-concept experi-ments have included investigations ofchemical-vapor deposition, a techniqueused to produce high-quality coatingsand thin films for electronics and met-als, as well as the effects of FEL pro-cessing on nylon, polyester and a classof materials known as polyimides. TheLab’s FEL has also been able to createin bulk ultrasmall but very strongstructures known as carbon nanotubes,which could eventually be the heart ofminuscule next-generation computers,as well as structural components foraircraft and automobiles. The FEL canalso be used to change the surfaceproperties of food packaging, making

it more resistant to microbes and foodspoilage.

These and other possibilities for theFEL were discussed in mid-January atthe FEL Users and Laser ProcessingConsortium (LPC) Workshop, held atthe Lab. In attendance were 122 usersfrom 30 different research groupsworldwide, in addition to LPC repre-sentatives from SURA (theSoutheastern Universities ResearchAssociation), DuPont, DominionPower, 3M, Aerospace Corporation,Siemens Automotive and NorthropGrumman. Attendees were briefed asto upgrade specifics and encouraged toconsider how to exploit the FEL’senhancements.

Another key enhancement will bethe addition of an ultraviolet “side-track”: a portion that will be capableof producing UV light for experiments.When complete, the sidetrack willenable the production of one kilowattof UV light — 1,000 times the capa-bility of the one-watt devices com-monly in use at other laboratories.

The bulk of the FEL upgrade fund-ing is coming from the U.S. Navy —$13.5 million — and the U.S. AirForce — $4.9 million. Additionalmonies have been provided by thestate of Virginia and NASA. Oncefully operational, the FEL is expectedto be supported by research grantsfrom the federal and state governmentsand by projects commissioned byindustrial interests.

Continued from page 1

Ricky Taylor (left) and Elliott Smythe, mechanical/vacuum installation technicians,disassembled the FEL 2-inch beamline in December in preparation for installing a3-inch beamline for the upgraded machine. Here they move one of the beamlinequadrupole magnets.

Chris Kerns adds changes to wiringfor the controls of one of the new100 kW cathode power supplies.

February/March 2002 • ON TARGET 3

History doesn’t record the momentwhen fully conscious humans

asked the first question. The incessantpush of human curiosity has neverthe-less changed the world. Even so,despite the seemingly inexorablemarch of science and technology intothe current century, questions don’tseem in short supply. Gwyn Williams,basic research program manager forJefferson Lab’s Free-Electron Laser(FEL), suspects some importantanswers may be forthcoming as aresult of the pending FEL upgrade.

“The FEL is such a powerful lightsource that it induces completely newphenomena in materials,” Williamssays. “All kinds of unexpected prop-erties emerge. Creating carbon nan-otubes [for electronics and super-strong structures] comes as a result ofexciting graphite, for instance. Thisupgrade gives us a window with awhole new view. We’re beginning totruly understand how the world worksat the level of a single atom.”

Should such an enhanced under-standing emerge, scientists and engi-neers could custom-design materialsatom by atom. This prospect,embraced by those in the field knownas nanotechnology, could begin alarge-scale products revolutionunprecedented in human history. First,however, researchers must significant-ly deepen their understanding of thesubmicroscopic. Williams points outthat because of its power and preci-sion, FEL light can help do just that,illuminating these smallest of realms:a kind of ultra-fast camera that willfreeze-frame even the most complexphysical or chemical reactions.

With the exception of density, aproperty of matter constrained anddescribed by the nucleus withinatoms, the physical properties of allmaterials are primarily determined bythe way electrons act. Everyday tech-nology, from lamps to laptops, is con-trolled by the behavior and flow ofelectrons, and is manifested in such

Journey into the heart of FEL scienceWhat questions will it answer; what opportunities will it offer?

properties as hardness, conductivityand materials-energy flow. Observingspecific electron behavior, however, isdifficult. Scientists who conduct suchobservations need an intense lightsource — and now have one, in theform of the FEL.

FEL research falls into three broadcategories: photo-induced chemistry,biology and materials. Before begin-ning the upgrade, some 20 formal pro-posals had been made for FEL-focusedresearch. Seventeen of these proposalswere given FEL beam time before theFEL shutdown in November. Thesewill be prioritized and will carry for-ward once the upgrade is complete.

Among the areas under investiga-tion will be the function of proteinmolecules within human cells as wellas the mechanisms that determine anddegrade materials purity, such as thesilicon that comprises many computercomponents. Scientists will also studythe effects of new surface compounds,produced when metals bathed in nitro-gen are exposed to FEL light, andexplore novel areas such as “spintron-

ics,” which concerns the properties ofnext generation semiconductor designsthat optimize performance using newlydiscovered properties of electrons.

The addition of ultraviolet-light(UV) capability will further augmentthe FEL’s utility by enabling experi-ments that assess the nature and extentof the human health risk arising fromincreased ultraviolet light. Further,because of the nature of its construc-tion and operation, the FEL accelera-tor’s electron beam can produce lightwith a frequency in the range of thou-sands of trillions of cycles per second.This “terahertz” capacity could con-ceivably lead to imagers that couldquickly detect biological agents, suchas anthrax, and hunt for concealedland mines.

“As scientists and as people, wewant to improve the quality of life,”Williams says. “This machine, alreadythe most powerful in the world, is get-ting even better. It should enable us tomake important progress in the nextseveral years.”

by James Schultz

Webs of nanotubes form on collector plates during William & Mary professor BrianHolloway’s FEL experiment. (Photo of collector near-actual size).

The JourneyContinues . . .

Appliedresearchprogram

seeks newuses for

upgraded FEL

4 ON TARGET • February/March 2002

vapor that, once deposited upon theblade’s surface, would create a verytough coating that would dramaticallyincrease operational longevity and cutdown or eliminate altogether the needfor blade resurfacing.

“The FEL upgrade will give us theability to process large demonstrationarticles, like the turbine blades,” saysMichael Kelley, the FEL’s appliedresearch program manager. “The FELis probably the only way to do suchthings on a large scale at a low per-unit cost. With a kilowatt or two oflight, you can achieve some of yourgoals. With 10 kilowatts, you’re ableto put all the pieces together for real.”

Companies like energy producerDominion Power, automotive manu-facturer Siemens Automotive andmaterials/textile maker DuPont areinterested in a beefed-up FEL because

Put a small casserole in themicrowave, and your attention most

likely won’t turn to large, whirringblades. Without those blades, though,spinning in an electricity-generating tur-bine somewhere, you wouldn’t have theoption of pushing a button or two tocook a meal. Yet both companies thatpackage the food and provide the powerto the microwave could benefit from theLab’s Free-Electron Laser (FEL)upgrade.

In particular, the FEL’s brand ofintense, focused laser light could create anew kind of food packaging that wouldminimize preparation fuss by not requir-ing a special container or removal fromthe usual plastic pouch. Likewise, steam-generator turbine blades, worn down bythe incessant pounding of water droplets,would get their own new lease on life.The FEL could create a specialized

by James Schultz

William and Mary graduate student Zhengmao Zhu (left) andMichael Kelley, FEL applied research program manager, in the lab.

5February/March 2002 • ON TARGET

of its ability to modify surfaces inex-pensively and effectively. The FEL’slaser light can vaporize a target mater-ial that then will deposit upon a givensubstance evenly and without muchcontamination by small particles ema-nating from the target. Because thecoatings are purer, they are moredurable, reducing overall costsbecause of increased longevity.

The upgraded FEL should also beable to produce larger quantities ofcarbon nanotubes, lightweight mole-cule-sized structures many timesstronger than steel. Should the expect-ed manufacturing efficiencies emerge,significant amounts could be made farless expensively than is now the case.

Researchers in other fields believethe upgraded, tunable FEL could be ameans of inexpensively and safelyremoving tattoos, cleaning damaged or

begrimed art, and be a significantresearch addition to geoscience as it lit-erally plumbs high temperatures andpressures deep within the Earth’s crustand mantle.

In February, JLab began a partner-ship with Virginia Tech and withNASA to request funding for an FELresearch project that would create thesmall, complex structures known asfullerenes. These sphere-like objects,which can encapsulate and slowlyrelease medication in the bloodstream,show great promise for medicationdelivery within the body. High per-unitcosts and limited availability have thusfar limited their use.

The Lab is also partnering with theCollege of William and Mary’sVirginia Institute of Marine Science touse the FEL to examine the physicsand structure of marine sediments.

Discovering how the sediments medi-ate absorption, mobility and transportof pollutants will likely lead to moreeffective means of cleaning contami-nation in and around streams, rivers,bays and the near-shore ocean.

“At the end of this entire processwe should have the kind of economicdrive to move forward and build anFEL for commercial purposes,” Kelleysays. “To get innovative technologyetched into the marketplace you needsomething that’s totally new and verydramatic: a knockout. It’s displacivetechnology versus replacive technolo-gy. That could be the ultimate outcomeof putting such a powerful machinelike the FEL to use.”

The UV lamp pictured was built to testprocesses that could ultimately be scaled upfor manufacturing purposes when the FELbegins to deliver ultraviolet light.

Michael Kelley (left) and Zhengmao Zhu makeadjustments to their UV Excimer Lamp, whichthey are using to make antimicrobial nylon.

For safety’ssake:

Lock itout

JLab techassociate

invents lockoutdevice for

equipment withremovable

power cords

ON TARGET • February/March 20026

It was the early 1990s and building theContinuous Electron Beam

Accelerator was in high gear. TheAccelerator Division was busy installingsome 30 vacuum ion pumps down in thetunnel. Simultaneously, above ground inthe long, low service buildings sittingover the tunnel, workers were installingand wiring the 7 kV, high-voltage powersupplies for those ion pumps.

“With the procedures we had inplace we were never in danger,” recalledRick Gonzales, Accelerator ElectronicsSupport (AES) technical associate, “butwe didn’t want to take any unnecessarychances while we were working on thepumps, with the power supplies remote-ly mounted. We searched catalogues andasked vendors for a good lockout devicewe could use on the pumps, but nothingexisted for equipment with removablepower cords.”

“So we made do with duct tape and amagic marker,” Gonzales continued.“We would cover a pump’s power-cordconnector with tape so the cord couldn’tbe plugged in. And with the marker wewrote ‘don’t plug in’ across the tape. Itwas our added safety measure while wedid the work. This way no one couldpower up the supply while we wereworking on the pump.”

Trying to find a better way to dealwith this safety concern, Gonzales cameup with an idea for a lockout device, but

Continued on page 10

it just didn’t work out. Then about sevenyears later — just before the Christmasbreak — Gonzales was on a bike ridewhen another design idea hit him. “Thisone was it. I just knew it,” Gonzalessaid. “I hurried in to work and carved aprototype out of a piece of plastic. I wasreally excited. After the break, I came inand showed it to Dick Lusk,Procurement and member of the JLabTech Transfer team. Then I worked withRhonda Scales, the Lab’s Legal counsel,and the Technology Transfer office topatent the device.”

SURA was awarded the patent on thelockout device in October 1999. Duringthe year and a half it took for the patentto be awarded, Gonzales and the Labbecame interested in seeing a manufac-turer bring the device to the commercialmarket. “A lockout device for an elec-tronic component with a removablepower cord could be used for both safetyand security purposes on so many differ-ent types of equipment,” he explained.

He talked with several companiesthat sell electronic instrumentation andsafety equipment; but no one was inter-ested in commercializing the lockoutmechanism. He also talked with severalcompanies that produce plastic and rub-ber molded parts (needed to build thedevice) to determine what it would takeand how much it would cost to commer-cially produce the device.

Rick Gonzales’ lockout devicein place and preventing itspower cord from beingplugged in.

Gonzales demonstrates howto use the lockout device heinvented.

In theirown

words

Kijun Park

reflects on

his interest in

physics and

coming

to America

February/March 2002 • ON TARGET 7

Iknow it sounds funny, but my interestin physics really started when I

watched the TV series MacGuyver as akid. I’d see him do all these ingeniousthings, and say, “Hmmm…that was veryinteresting.” Actually, it was a kind ofmagic for me and I wanted, somehow, tobe part of doing things like that in sci-ence.

The next big influence for me wasfrom a physics teacher in middle schoolin my hometown of Taegue, SouthKorea. He was a real funny guy and hemade it easy to learn. Actually, math andscience have always come easily to me.(They’re much easier than learningEnglish!) In fact, I finished my graduatework, except for my thesis, in four yearsat Kyung Pook National University. Itusually takes six years, but I took morecourses than usual.

My first trip to the United States wasa little more than four years ago, in1997, and I’ve spent my winter andsummer vacations here, working parttime in the Hall B group at the Lab. I

worked on hardware and cabling, thatsort of thing, and finally got the chanceto come here to do the work that mythesis will be based on.

My particular interest is in high-energy physics, searching for the originof mass. For me, that’s an attractivetopic, although it’s really difficult forme. Years ago, I read a book called“Where Did Mass Come From?” thatsaid mass is not defined. That reallyhooked me. I’m working here with theTime-of-Flight group and the Analysisgroup, with particular momentum cor-rection.

What I find really interesting aboutthis work is that even though you can’tsee anything, there’s something there.This seems to me to be really some kindof magic.

I’ll be here for three years, and myarrival was certainly unsettling. I gothere on Sept. 10 and immediately wentto bed to get some much-needed restafter traveling. When I got up the nextday and came over to the Lab, people

Kijun Park enjoys a quiet moment on the CEBAF Center deck. He isintent on successfully completing his Ph.D. thesis and starting hiscareer.

as told to Judi Tull

continued on page 11

ON TARGET • February/March 20028

Diveinto

Science

Lab hosts

Virginia

Regional

Science Bowl

Some of the brightest young mindsin the state came together at

Jefferson Lab on Feb. 9 to compete inthe Virginia Regional Science Bowl.Twenty teams, representing highschools from across theCommonwealth, participated in theacademic competition sponsored bythe Department of Energy.

When the “dust” settled at the endof an intense day of science and mathquestions and answers, the winningteam was Thomas Jefferson HighSchool for Science and Technologyfrom Alexandria. Team captain andhigh school senior, Gregory Price, ablyled his team to victory.

The team from Woodbridge SeniorHigh School, Woodbridge, finished insecond place. Coming together for thefinal round of the afternoon’s double-elimination playoffs, the Woodbridgeteam had one more win to its creditthan the TJ team. The round went toTJ, creating a tie, which resulted in afinal tiebreaker round. TJ stayed on itswinning course and took the tiebreakerround to win the competition.

The Kempsville High School team,Virginia Beach, won third place; andForest Park High School, fromMidlothian, earned the SportsmanshipTrophy. Richmond Christian School,Chesterfield, sponsored two teams atthe competition. While neither teamranked among the top eight teams thatmoved into the afternoon double-elim-ination playoffs, they were among sev-eral teams that stayed for an afternoonof math and science challenge activi-ties. In a twist of irony, the two teamstied for the “Stay All Day” math andscience challenge award.

The Virginia champs and the win-ners from the other 60 regionalScience Bowl competitions will nowvie for the top honor at the ScienceBowl Nationals to be held May 3–6 inWashington, D.C. The second andthird runners-up received cash awardsto buy science equipment for theirrespective schools.

Linda Ware, Jefferson Lab publicaffairs manager, said she was particu-larly proud of the smaller schools par-ticipating in the event. “Everyone real-

Two “Stay All Day” participants tackle the chal-lenge of calculating the height of the ARC building.

The winning team from Thomas Jefferson HighSchool for Science and Technology pose for agroup photo. From left are Coach Sharon Baker,Jeffrey Cohen, Gregory Price, Kay Aull, GarySivek and Steven Sivek.

February/March 2002 • ON TARGET 9

ly enjoyed themselves,” she said. “It’srewarding for kids who study hard anddo well to be able to show off theirtalents at an academic competition likethis.”

“The Science Bowl is a great wayto promote education, academic excel-lence and an interest in math and sci-ence,” commented Jan Tyler, JLabScience Education manager and coor-dinator for the 2002 Virginia RegionalScience Bowl. “Competing with theirpeers is a great confidence builder anda fantastic way to motivate youngminds.”

“We were delighted to host thisyear’s competition,” Tyler continued.“It was a fantastic opportunity for the

Lab to show its support for scienceeducation in Virginia. Hosting theScience Bowl gives us the chance toencourage our youth to pursue highereducation and careers in science andmath. Some of the young peopleattending this event could becomefuture JLab scientists, engineers, tech-nicians, or administrative or supportstaff.”

More than 60 Lab staff and familymembers volunteered their time toconduct the day-long, weekend event.“We owe each of them a huge thanks.Without so many willing, wonderfulvolunteers, the Lab wouldn’t havebeen able to host this event,” Tylersaid.

Richmond Christian

School brought two teams

to the competition. The

two teams tied for first

place in the “Stay All Day”

challenges. Here they

pose for a group photo

with coach Edith Kinser.

Taking second place in the Science Bowl was Woodbridge Senior High School.Pictured here with Coach Kathryn Voehl (from left) are Alexandria Moler, ByungKim, Randy Williams, Chris Richbourg, Patrick Lucey and Ben Sereufert.

Three “Stay AllDay” partici-pants tackle thebridge buildingactivity.

Gonzales invents lockout device. . .Gonzales was frustrated to find that

companies just weren’t interested inbuilding the lockout. He found a fewvendors interested in selling the lockout,but no one wanted to produce the sim-ple, straightforward device. (Two piecesof molded plastic, a hunk of vulcanizedrubber, a small metal plate, a nut and ascrew are all that it consists of.) “Thecompanies just didn’t want to take onthe risk or cost of bringing a new prod-uct to market,” he said.

Then about a year ago he approachedhis local Chamber of CommerceBusiness Development Center to see ifthey could offer him any advice. Theysuggested that he sit in on their Small

Business Startup class. “While I wastaking the class, I realized: I knew thisdevice inside and out. I knew how muchit would cost to procure each part andhow much it could be sold for. I knewwhich vendors could produce the neededparts,” Gonzales commented. “It wasright there in my face. I had done all theresearch someone does to set up a smallbusiness. A week later my wife and Imade a licensing proposal to the Laband after the agreement was signed wecreated Southside Safety, Inc. and start-ed commercial production of the LOCK-OUT 320™ — the perfect device forsecuring equipment that uses a remov-able input power cord.”

All of this extra work — on Rick’sown time — is now making the LOCK-OUT 320™ commercially available tothe public. Despite a lot of expense anddiscouragement, Gonzales continuedbelieving in the potential for his lockoutdevice, and he’s persevered. For moreinformation about the LOCKOUT 320™,visit www.southsidesafetyinc.com/.

The Technology Transfer office atJefferson Lab encourages staff withunique ideas to consider going throughthe patent process. A successful productdevelopment can be financially reward-ing to the inventor as well as toSURA/JLab.

Continued from page 6

ON TARGET • February/March 200210

homes, and eavesdrop on the remnantechoes from the mighty jolt of the BigBang itself. Barnes & Noble will havea table set up with Bartusiak’s newbook available for purchase.

All Science Series events begin at7 p.m. in the CEBAF Center auditorium.The presentations last about 1 hourand a question & answer period endsthe evening. The events are free andopen to anyone interested in learningmore about science. For security pur-poses, enter at the Lab’s main entrance(Onnes Dr.). Everyone over 16 is askedto carry a photo I.D., and security guardsmay perform vehicle checks.

Spring Science Seriesevents underway

The Lab’s Spring Science Serieskicked off at 7 p.m. on February 28.The next event is Tuesday, March 12,when a dramatic interpretation of sci-ence takes center stage with Dr.Rosemary Colarulli from WeissSchool, Palm Beach Gardens, FL.

Watch science unfold before youreyes. Catch her dynamic, dramaticpresentation “Science on Stage.”Colarulli received her BA inChemistry, Biology and Mathematicsat Rhode Island College and herMasters and Doctorate degrees fromFlorida Atlantic University inEducational Leadership. Her expertisein gifted education keeps her much indemand as a keynote speaker and edu-cational consultant.

On Thursday, March 28, the Labplans to bring University of Illinoisphysicist and baseball enthusiast AlanNathan to JLab to present “How toHit a Home Run - How a PhysicistThinks about Baseball.” Nathan ispassionate about physics and baseball.His love of each brought the twotogether for “The Dynamics of theBaseball-Bat Collision,” a paper hewrote which was published in theNovember 2000 issue of the AmericanJournal of Physics. “The Physics ofBaseball” grew from the Nathan’s

paper and the interest of several othersin the science behind one of America’sfavorite past times. For more aboutphysics and baseball, visit Nathan’sweb site: www.npl.uiuc.edu/~a-nathan/pob/. Nathan is the Lab’s UserGroup Board of Director chair.

And on Wednesday, May 8, theLab hosts Marcia Bartusiak, author of“Einstein’s Unfinished Symphony” fora discussion of her latest book and abook signing. A new generation ofobservations, now being completedworldwide, will give astronomers notjust a new window on the cosmos buta whole new sense with which toexplore and experience the heavensabove us. Instead of collecting lightwaves or radio waves, these novelinstruments will allow astronomers toat last place their hands on the fabricof space-time and feel the veryrhythms of the universe. These vibra-tions in space-time — or gravitywaves — are the last prediction ofEinstein’s general theory of relativityyet to be observed directly. They arehis unfinished symphony, waitingnearly a century to be heard. Whenthey finally reveal themselves toastronomers, we will for the first timebe able to hear the cymbal crashesfrom exploding stars, tune in to theperiodic drumbeats from swiftly rotat-ing pulsars, listen to the extendedchirps from the merger of two black

Briefs

Employee tours

Now is your chance to see firsthand what we do at Jefferson

Lab! The Public Affairs office isoffering a weekly tour of the

accelerator during the Mar/Aprilshutdown. The tour van willdepart from CEBAF Centerpromptly at 9:30 a.m. every

Tuesday from March 26 throughApril 16. We will make everyeffort to be finished by 11:15

a.m. Sign up on the JLab Insiderweb page.

February/March 2002 • ON TARGET 11

In a letter recently made public forthe first time, Bohr accusesHeisenberg of misleading others, inthe aftermath of World War II, byclaiming to have purposely under-mined the German atom bomb effort.

In the letter, composed around1957, Bohr claims that in his recollec-tion of their encounter Heisenbergseemed less ambivalent and moreknowledgeable about building a bombthan Heisenberg later implied. Thisletter, now made public by the NielsBohr Archive in Denmark(www.nba.nbi.dk/), was never sent andsince Bohr’s death in 1962, had beensealed away.

Upcoming events surrounding theplay include performances throughMarch 24 at Kennedy Center inWashington, D.C. (call 1-800-444-1324);and a session on the subject at theApril American Physical Society meet-ing in Albuquerque.

“Copenhagen” reenacts the 1941visit of Heisenberg, who was then incharge of the Nazi nuclear power pro-gram, with Bohr, his mentor, and col-laborator in creating quantum mechan-ics, complementarity, and the uncer-tainty principle, in German-occupiedDenmark.

Milestonesfor January 2002

Hello

David J. Bianco, SystemsAdministrator/Programmer, PhysicsDivision

Jane A. Worley, Accounts PayableSupervisor, Administration Division

Goodbye

Cindy J. O’Hare, ProcurementAdministrator, AdministrationDivision

Ronald M. Sundelin, AssociateDirector for Technical Performance,retires

Congratulations

Dianne Napier, AcceleratorElectronics Support (AES), completedher Bachelor of Science degree inElectrical Engineering at OldDominion University in December2001. She also took first place at ODUwith her senior design project, “TheAutomation of the RF Analog BoardManual Test Procedure for JeffersonLaboratory.” She then competed at the

IEEE (Institute of Electrical andElectronics Engineers) RegionalPresentation Contest in January andtook another first place.

Tyrone Pate, graduate studentintern with the RFES (RadioFrequency Electronic Support) group(formerly called EID — ElectronicInstrumentation Division), took secondplace in the same ODU contest. Hissenior design project addressed the“simultaneous multiple harmonicdetection device (phase locked loopcircuit and lock-in amplifier) to be usein Wavelength ModulationSpectroscopy experiments”. He isenrolled at ODU in the BS-MS pro-gram and completed his Bachelor’sdegree in Electrical Engineering, withemphasis in electronics and solid-stateelectronics design, in December 2001.

Copenhagen drama-tizes WWII meeting ofBohr, Heisenberg

Werner Heisenberg’s wartime visitto Niels Bohr, recently dramatized inMichael Frayn’s play “Copenhagen,”has, 60 years after the event, just takena new turn.

Briefs

were gathered around the television andthe World Trade Center towers had beendestroyed.

I’m something of an oddity at home,really. Not that many Korean people likephysics or understand it. Young peoplelike myself can’t understand why I enjoystudying it. Even my parents think I’m alittle bit crazy because I’m so unique inthis way. I have one brother, who is edu-cated in architecture but works in man-agement. He seems much more normalto my family than I do.

If I were not doing physics, I wouldbe an artist. I tried to pursue that when Iwas younger, but finances were a prob-lem. Art school is expensive, and thenyou have to buy paint and papers. It allcost too much. I have no hobbies rightnow and I don’t play sports. I do enjoy

doing things with the computer, but notgames. What I like to do is make pro-grams. And I spend a lot of my timeworking on physics.

I’ve found American culture to bevery interesting, and certainly very dif-ferent from Korea. In one particularexperience, I had a question about myjob and the person I asked answered in avery specific way. In Korea, the explana-tion would have been larger, more philo-sophical.

On the other hand, it’s been impres-sive to see how kind Americans are toforeigners. It’s been surprising how kindand helpful people here have been. Mysupervisor, Dr. Volker Burkert, helpedfind me an apartment and he also sup-ports my financial grant. I’ve alsoreceived a lot of help from my professor,

Wooyoung Kim, at Kyung PookNational University. I am very gratefulto both of them; I would not be here if itweren’t for them.

American food has been an interest-ing experience, too. Koreans eat mostlyrice, vegetables, kim chee, that sort ofthing, where American people eat beefand pork. I have no problem with thefood. In fact, I’m beginning to love ham-burger steak — it’s very delicious!

The newest thing in my personal lifeis that I went home over Christmas, gotmarried, and my wife has come backwith me. This is definitely a good thing,and along with the opportunities I havehere at the Lab, my life in America isvery, very good.

In their own words with Kijun Park. . .Continued from page 7

ON TARGET • February/March 200212

Jefferson Lab/MS 12C12000 Jefferson AvenueNewport News, VA 23606

Check Us out on the Internet:

www.jlab.org

On Target is published by theThomas Jefferson National AcceleratorFacility, a national nuclear physicsresearch laboratory in Newport News,VA, operated by the SoutheasternUniversities Research Association forthe U.S. Department of Energy. Newsitems are published on a space-availablebasis and are subject to editing. Submitnews items to the Jefferson Lab PublicAffairs Office, MS12C, 12000 JeffersonAvenue, Newport News, VA 23606.

EditorsLinda Ware

Debbie Magaldi

Contributing WritersJames Schultz

Judi Tull

PhotographerGreg Adams

Keith Baker, JLab/HamptonUniversity joint appointee, was

recently awarded the AmericanPhysical Society’s 2002 Edward A.Bouchet Award for his innovativeresearch.

Baker, a JLab experimental physi-cist, was Hampton University’s deanof the school of science, and currentlyhas an endowed university professor-ship (an endowed chair) at HU.

The APS award recognizes Bakerfor his contribution to nuclear and par-ticle physics research, his developmentof ways to conduct complex measure-ments of subatomic particles, and forbeing active in local and national out-reach activities.

In addition, Baker has played amajor role in bringing highly visiblephysics projects and programs toHampton University.

The purpose of the award is topromote the participation of under-represented minorities in physics byidentifying and recognizing a distin-guished minority physicist who hasmade significant contributions tophysics research, according to theAPS. The award was established in1994 and made possible by a grantfrom the Research Corporation, afoundation for the advancement of sci-ence.

More about the award is available atwww.aps.org/praw/bouchet/index.html.

APS recognizes Lab physicistBaker wins Bouchet Award for his innovative research