nuclear data for basic sciences and applications · nuclear data for basic sciences and...
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Nuclear Data for Basic Sciences and Applications
Paraskevi (Vivian) Dimitriou Nuclear Data Section, International Atomic Energy Agency, Vienna, Austria
Division of Physical and Chemical Sciences: Nuclear Data Section
Nuclear Data development
and dissemination
Coordinated Research Projects
Training
Technical Meetings
International Networks
Basic Sciences: experiment + theory
JYFLTRAP Penning trap
Applications: Dosimetry, radiation protection, reactor operation+ safety, forensics, Homeland security, Cultural heritage, environmental Control
Basic Sciences: experiment + theory
JYFLTRAP Penning trap
Nuclear Data
Applications: Dosimetry, radiation protection, reactor operation and safety, forensics, homeland security, Cultural heritage, environmental Control
Compilation
Evaluation Dissemination
Evaluated Nuclear Data File (ENDF)
Ø Major evaluated data library for energy and non-energy applications involving particle transport Ø There is no single ENDF file, but several national and international efforts: ENDF/B, JEFF, JENDL, CENDL, ROSFONDF/BROND Ø IAEA projects, CIELO
ENSDF Evaluation
• Levels, spins, parities • Multipolarities, mxing
ratios, conversion coefficients
• Half-lives, transitions strengths, emission probabilities…
• Continuously updated • Complete
ENSDF: Major Data Sources and Derivatives
ENSDF
MIRD Derivative Databases:
Derivative Publications:
RADWARE
MC Codes q MCNPX q GEANT
NUBASE RIPL
NuDat IE
JANIS … DDEP
Live Chart
• Nuclides Chart with filter
• ENSDF + other NS properties
• Data tables with evaluators’ comments
• Level and decay schemas, decay radiation, β and bremsstrahlung spectra
• CSV download
www-nds.iaea.org/livechart
Build your query on ENSDF
• Custom plotting • Data tables, level and decay schemes • CSV data downloading
www-nds.iaea.org/queryensdf
IAEA Isotope Browser – for mobile devices
• ENSDF + other NS data • Query tool • Chart with decay path
International Network of Nuclear Structure and Decay Data Evaluators
McMaster University Petersburgh Nuclear
Physics Institute
ITT Roorkee
International Network of Nuclear Structure and Decay Data Evaluators
McMaster University Petersburgh Nuclear
Physics Institute
ITT Roorkee
Since 1974 under auspices of Nuclear Data Section
International Atomic Energy Agency
NSDD evaluation vs Usage USA Europe IND RUS PRC JAP AUS
USA Europe India Russia PR China Japan Australia Saudi Arabia S. Korea
FTE contribution to
ENSDF
Downloads (%) from Nuclear Data Sheets
Present and Future
NSDD centres
74% 26% Ø Require 12 full-time evaluators to keep ENSDF
updated every 10 years – have only 9 Ø Limited funding Ø Retirement of experienced evaluators Ø Rapid growth in new data Ø Increasing demands for reliable up-to-date nuclear
data
c/o: H. Sakurai, ICTP Workshop on NSDD, 22 Aug.-2 Sept. 2016, Trieste
Contribution from the major facilities all around the world is CRUCIAL !
Ø Maintain expertise in nuclear data
Ø Keep ENSDF current Ø Provide top quality data for
applications and basic research