OECD Nuclear Energy Agency / L'Agence pour l'énergie nucléaire

Working Party on International Nuclear Data Evaluation Co-operation (WPEC)

The NEA's nuclear data evaluation co-operation activities involve evaluation projects in the following regions: Japan (JENDL), United States (ENDF), Western Europe (JEFF), and non-member countries (BROND, CENDL, and FENDL). The participation of non-member countries in these evaluation projects is channelled through the Nuclear Data Section of the International Atomic Energy Agency (IAEA).

The working party was established to promote the exchange of information on nuclear data evaluations, measurements, nuclear model calculations, validation, and related topics, and to provide a framework for co-operative activities between the participating projects. The working party assesses nuclear data improvement needs and addresses these needs by initiating joint evaluation and/or measurement efforts.

Activities

Long-term subgroups

C	High Priority Request List
	Co-ordinator: A. Plompen
	Status: See the HPRL web page

Short-term subgroups

1	Comparison of Evaluated Data for Chronium-52, Iron-56 and Nickel-58
	Co-ordinator: C.Y. Fu
	Status: Published (Volume1.pdf (500kb))

2	Generation of Covariance Files for Iron-56 and Natural Iron
	Co-ordinator: H. Vonach
	Status: Published (Volume2.pdf (110kb))

3	Actinide Data in the Thermal Range
	Co-ordinator: H. Tellier and H. Weigmann
	Status: Published (Volume3.pdf (590kb))

4	238U Capture and Inelastic Cross-sections
	Co-ordinator: M.Baba
	Status: Published (Volume4.pdf (279kb))

5	Plutonium-239 Fission Cross-section Between 1 and 100 keV
	Co-ordinator: E.Fort
	Status: Published (Volume5.pdf (91kb))

6	Delayed Neutron Data
	Co-ordinator: A. d'Angelo
	Status: Published (Volume6.pdf (543kb))

7	Nuclear Data Standards
	Co-ordinator: A. Carlson
	Status: Published (Volume7.pdf (445kb))

8	Present Status of Minor Actinide Data
	Co-ordinator: T.Nakagawa and H.Takano
	Status: Published (Volume8.pdf (1 Mb))

9	Fission Neutron Spectra
	Co-ordinator: D. Madland
	Status: Published (Volume9.pdf (137kb))

10	Evaluation Method of Inelastic Scattering Cross-sections for Weakly Absorbing Fission-product Nuclides
	Co-ordinator: M.Kawai
	Status: Published (Volume10.pdf (1.4 Mb))

11
	Co-ordinator:
	Status:

12	Nuclear Models to 200 MeV for High-energy Data Evaluations
	Co-ordinator: M. Chadwick
	Status: Published (Volume12.pdf (40kb))

13	Intermediate Energy Data
	Co-ordinator: A. Koning and T. Fukahori
	Status: Published (Volume13.pdf (45kb))

14	Processing and Validation of Intermediate Energy Data Files
	Co-ordinator: A.Koning
	Status: Published (Volume14.pdf (169kb))

15	Cross-section Fluctuations and Self-shielding Effects in the Unresolved Resonance Region
	Co-ordinator: F. Fröhner
	Status: Published (Volume15.pdf (114kb))

16	Effects of Shape Differences in the Level Densities of Three Formalisms on Calculated Cross-sections
	Co-ordinators: C.Y. Fu and M. Chadwick
	Status: Published (Volume16.pdf (115kb))

17	Status of Pseudo-fission product Cross-sections for Fast Reactors
	Co-ordinator: H. Gruppelaar
	Status: Published (Volume17.pdf (590kb))

18	Epithermal Capture of 235U
	Co-ordinator: C. Lubitz
	Status: Published (Volume18.pdf (210kb))

19	Activation Cross-Sections
	Co-ordinator: A. Plompen
	Status: Published (Volume19.pdf (7 Mb))

20	Evaluation and Processing of Covariance Data
	Co-ordinator: T. Kawano
	Status: Published (Volume20.pdf (311kb))

21	Assessment of Neutron Cross-Section Evaluations for the Bulk of Fission Products
	Co-ordinator: P. Oblozinsky
	Status: Published (Volume21.pdf (321kb))

22	Nuclear Data for Improved LEU-LWR Reactivity Predictions
	Co-ordinator: A. Courcelle
	Status: Published (Volume22.pdf (614kb))

23	Evaluated Data Library for the Bulk of the Fission Products
	Co-ordinator: P. Oblozinsky
	Status: Completed (final report expected in autumn 2008)
24	Covariance Data in the Fast Neutron Region
	Co-ordinator: M. Herman
	Status: Ongoing (final report expected in 2009)
25	Assessment of Fission Product Decay Data for Decay Heat Calculations
	Co-ordinator: T. Yoshida
	Status: Published (Volume25.pdf (506kb))
26	Uncertainty and Target Accuracy Assessment for Innovative Systems Using Recent Covariance Data Evaluations
	Co-ordinator: M. Salvatores
	Status: Published (Volume26.pdf (6.3 Mb))
27	Prompt Photon Production from Fission Products
	Co-ordinator: R. Jacqmin
	Status: Ongoing
28	Processing of Covariance Data
	Co-ordinator: M. Dunn
	Status: Completed (final report expected in autumn 2008)
29	U-235 Capture Cross Section in the keV to MeV Energy Region
	Co-ordinator: O. Iwamoto
	Status: Ongoing
30	Improvement of Accessibility and Quality of the EXFOR Database
	Co-ordinator: A. Koning
	Status: Ongoing
31	Meeting Nuclear Data Needs for Advanced Reactor Systems
	Co-ordinator: H. Harada
	Status: Starting
32	Unresolved resonance treatment for cross section and covariance representation
	Co-ordinator: L. Leal
	Status: Starting

List of WPEC working documents

Template for new subgroup proposals (Word format, 32kb)

Meetings

The 20th meeting of the working party was held on 5-6 June 2008, in Tokai, Japan.

The 21th meeting of the working party will be held in spring 2009 in the United States

Related conferences

ND2007: The last International Conference on Nuclear Data for Science and Technology was held on on 22-27 April 2007 in Nice, France. ND2007 website
ND2010: The next International Conference on Nuclear Data for Science and Technology will be held in the Republic of Korea in 2010. ND2010 website

Keywords

Nuclear Data, Evaluation, JEFF, ENDF, JENDL, BROND, CENDL, FENDL

Working Party on International Nuclear Data Evaluation Co-operation (WPEC)

Activities

Meetings

Keywords

Related links