International Conference on Nuclear Data for Science and Technology 2007
DOI: 10.1051/ndata:07716

Status and future work of the NEA Working Party on international nuclear data Evaluation Cooperation

Arjan J. Koning¹, Jun-ichi Katakura², Pavel Oblozinsky³, Alan L. Nichols⁴ and Claes Nordborg<sup>5

1</sup>  NRG, 3 Westerduinweg, P.O. Box 25, 1755 ZG Petten, The Netherlands
²  Nuclear Data Center, Japan Atomic Energy Agency, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
³  National Nuclear Data Center, Brookhaven National Laboratory, P.O. Box 5000, Upton, NY 11973-5000, USA
⁴  Nuclear Data Section, International Atomic Energy Agency, P.O. Box 100, Wagramer Strasse 5, 1400 Vienna, Austria
⁵  OECD Nuclear Energy Agency, 12 bd des Îles, 92130 Issy-les-Moulineaux, France

Published online: 21 May 2008

Abstract
The Working Party on international nuclear data Evaluation Cooperation (WPEC) is a collaborative effort between the major OECD nuclear data projects: ENDF/B (USA), JENDL (Japan) and JEFF (Europe), and the IAEA-supported non-OECD projects CENDL (China) and BROND (Russian Federation). Nuclear data challenges and problems that are common to all projects are considered in various WPEC subgroups that are normally of limited time span. The achievements of these subgroups during the course of 2005/06 are reviewed in this paper. Among the recent accomplishments are improved criticality predictions through revised U evaluations, the completion of new cross-section standards, and the creation of a new fission product library. Problems that are currently being addressed are the processing and inclusion of covariance data in the libraries, improvements in decay data to assist in decay heat calculations, assembly of a well-structured High Priority Request List, validation of the new fission product cross-section library, and the assessment of nuclear data needs for GEN-IV.

© CEA 2008