1. Next Version of JENDL General Purpose File
Report by the “ad hoc committee on Next JENDL”
in Japanese Nuclear Data Committee
Keiichi SHIBATA
JAERI Nuclear Data Center
JAERI Nuclear Data Center - Tokai

2. Ad Hoc Committee on Next JENDL
Sep – May 2003
Japanese Nuclear Data Committee
Development of Next Version of JENDL General Purpose File (GPF)
Members
M. Igashira (TIT), M. Ishikawa (JNC),
T. Kawano (Kyushu U.), A. Zukeran (Hitachi),
Y. Tahara (MHI), N. Yamano (SAEI), S. Chiba,
T. Fukahori, F. Maekawa, O. Iwamoto, K. Shibata (JAERI)
JAERI Nuclear Data Center - Tokai

3. Outline of Committee Activities
Consensus
Next version of JENDL GPF = JENDL-4
Interviews with specialists in application fields
LWR, FBR, shielding, ADS, fusion neutronics, criticality safety, radiation damage, medicine, prod. of radioactive material for medical use, astrophysics
Strong needs for JENDL-4
Recommendation for JENDL-4
JAERI Nuclear Data Center - Tokai

4. JAERI Nuclear Data Center - Tokai
Demands for JENDL-4 (1)
LWR, FBR
More accurate MA and FP data
Re-examination of FP yield data
Eval. of spontaneous fission neutron spectra
Gamma-ray production data for all nuclei
More covariance data
ADS
More accurate MA data
JAERI Nuclear Data Center - Tokai

5. JAERI Nuclear Data Center - Tokai
Demands for JENDL-4 (2)
Criticality safety
More accurate MA and FP data
Evaluation of gamma-ray production data
Radiation damage
Evaluation of Ni-59 (No Ni-59 in JENDL-3.3)
Charged-particle, PKA, KERMA
High energy accelerator shielding
To be covered by JENDL High Energy File
JAERI Nuclear Data Center - Tokai

6. JAERI Nuclear Data Center - Tokai
Demands for JENDL-4 (3)
Fusion neutronics
To resolve open problems with JENDL-3.3
Comparisons with FNS and OKTAVIAN exp.
Charged-particle spectra for light nuclei
Covariance data
Data for IFMIF JENDL High Energy File
Light charged-particle induced reaction data
To be covered by a special purpose file ?
JAERI Nuclear Data Center - Tokai

7. JAERI Nuclear Data Center - Tokai
Demands for JENDL-4 (4)
BNCT
Neutron source: Li(p,n), Ta(p,n)
Moderator: Li, F, Al En  50 MeV
Tissue-equivalence: H, C, N, O En  50 MeV
10B(n,) cross section En  50 MeV
To be covered by JENDL High Energy File
JAERI Nuclear Data Center - Tokai

8. Other Demands by Internet
Development of our own nuclear model codes
Expertise
Promotion of international cooperation
Man power shortage
Development of inner-shell electron ionization data for medical use
Impossible in the current JNDC
Public relation of JENDL
JAERI Nuclear Data Center - Tokai

9. JAERI Nuclear Data Center - Tokai
Purpose of JENDL-4
Development of innovative reactors
High burn-up and use of MOX for LWR
Criticality safety with burn-up credit
Medical use, astrophysics
A library with high quality and reasonable quantity
A unified system including reactor constants
Quality assurance Standard library in Japan
JAERI Nuclear Data Center - Tokai

10. Specifications of JENDL-4 (1)
Incident particles
Neutron, charged-particle, photon, spontaneous fission
Energy range
Mandate: 10-5 eV to 20 MeV
Optional: extension of max. energy
Format
ENDF-7: No big change from ENDF-6
JAERI Nuclear Data Center - Tokai

11. Specifications of JENDL-4 (2)
Nuclides to be compiled
No needs for a big increase of no. of nuclei
JENDL-3.3: ENDF/B-VI.8: 329
More than 1000 nuclides needed for burn-up calculations
By-products from activities on astrophysics data?
Possibility to take a whole data on a particular nuclide from other libraries
Ex. Au-197
JAERI Nuclear Data Center - Tokai

12. JAERI Nuclear Data Center - Tokai
Key Subjects (1)
Incident particles and max. energy
Neutron + charged-particle, photon, spontaneous fission
20 MeV increased to xx if necessary
To resolve open problems with JENDL-3.3
Benchmark tests, experiences
Improvement of accuracy of MA data
High burn-up, MOX, ADS
JAERI Nuclear Data Center - Tokai

13. JAERI Nuclear Data Center - Tokai
Key Subjects (2)
Improvement of accuracy of FP data
Criticality safety, innovative reactors
Covariances
Uncertainty analysis
FP yields and fission neutron spectra
Gamma-ray production data
Required to evaluate secondary gamma-ray production data
JAERI Nuclear Data Center - Tokai

14. JAERI Nuclear Data Center - Tokai
Key Subjects (3)
Emitted charged-particle and recoil nucleus spectra
Study on radiation damage
Consistency of data
Energy balance of spectra
Other data
Ni-59 (radiation damage)
Au-197 (standard)
JAERI Nuclear Data Center - Tokai

15. General Remarks on Development of JENDL-4
Initiative taken by JAERI NDC
Evaluation, compilation, development of reactor constants, benchmarking in cooperation with JNDC
Each WG should work on JENDL-4.
JNDC Steering Committee is responsible for providing WGs with good circumstances so that WGs could achieve their missions.
JAERI Nuclear Data Center - Tokai

16. JAERI Nuclear Data Center - Tokai
Role of Each Group (1)
JAERI Nuclear Data Center
To coordinate JENDL-4 project
In charge of MA evaluations
To develop tools for covariances and provide evaluators
In charge of important nuclides such as structural materials and major actinides
In charge of Ni-59 and Au-197
JAERI Nuclear Data Center - Tokai

17. JAERI Nuclear Data Center - Tokai
Role of Each Group (2)
Evaluation and Calculation Support System WG
Guideline of evaluations a textbook
To consider the use of standards in JENDL
Develop evaluation tools
FP Nuclide Evaluation WG
To evaluate FP data
Covariances for capture data
Gamma-ray production data
JAERI Nuclear Data Center - Tokai

18. JAERI Nuclear Data Center - Tokai
Role of Each Group (3)
FP Yield Data Evaluation WG
To evaluate FP yield data and fission neutron spectra
To consider uncertainties in FP yields
High Energy Nuclear Data Evaluation WG
Extension of max. neutron energy
which nuclide?
To provide PKA data, proton-induced reaction data and photonuclear data for JENDL-4
JAERI Nuclear Data Center - Tokai

19. JAERI Nuclear Data Center - Tokai
Role of Each Group (4)
Reactor Integ. Test, Shielding Integ. Test and Eval. of Nuclide Generation WGs
To select benchmark problems
To make criteria for data validation
Feedback to data evaluation
Database of input and output of benchmark calculations together with exp.
Standard Group Constant WG
To generate standard group constants
JAERI Nuclear Data Center - Tokai

20. JAERI Nuclear Data Center - Tokai
Role of Each Group (5)
JENDL Compilation Group
To make databases and carry out checking
To make review kits and set up a review system in JNDC critical review QA
Steering Committee
To make arrangements for JENDL-4 and ENSDF evaluations
Strong link with AESJ Nuclear Data and Reactor Physics Divisions
To cooperate with AESJ Standard Committee
JENDL Standard Nuclear Data Library in Japan
JAERI Nuclear Data Center - Tokai

21. JAERI Nuclear Data Center - Tokai
Issues (1)
Resonance analysis
RRP for important nuclides taken from SAMMY analyses by ORNL and Cadarache
Necessary to have specialists in Japan
Workshop on SAMMY
Nuclear model codes
Use of codes made in foreign countries
To improve data reliability and include recent nuclear theories
Necessary to develop our own codes
JAERI Nuclear Data Center - Tokai

22. JAERI Nuclear Data Center - Tokai
Issues (2)
Thermal scattering law data
Non-existent in current JENDL
Should be discussed at JNDC
Processing codes
Utilization of evaluated data for nuclear engineering
Development and maintenance of processing codes
Necessary to keep specialists
JAERI Nuclear Data Center - Tokai

23. International Cooperation
To join international evaluation activities
Manpower shortage
NEANSC/WPEC, IAEA/CRP
Cooperation with KAERI, CEA, LANL
Common data in major libraries
Not intend to make a unified library at present.
JAERI Nuclear Data Center - Tokai

24. JAERI Nuclear Data Center - Tokai
Quality Assurance
Necessary to raise reliability
Criteria for quality assurance
Benchmark tests for various applications
Database of input and output of benchmark calculations together with exp.
Reactor constants based on JENDL-4
To make JENDL-4 a Standard Nuclear Data Library in Japan
JAERI Nuclear Data Center - Tokai

25. JENDL-4: A Database Supporting Next Generation of Nuclear Energy
JAERI Nuclear Data Center - Tokai