International Cooperation in Nuclear Data Evaluation
J. Korean Phy. Soc. 2011; 59: 1028~1033
Published online August 12, 2011 © 2011 The Korean Physical Society.

The OECD Nuclear Energy Agency (NEA) is organising a co-operation between the major nuclear data evaluation projects in the world. The co-operation involves the ENDF, JEFF, and JENDL projects, and, owing to the collaboration with the International Atomic Energy Agency (IAEA), also the Russian BROND and the Chinese CENDL projects. The Working Party on international nuclear data Evaluation Cooperation (WPEC), comprised of about 20 core members, manages this co-operation and meets annually to discuss progress in each evaluation project and also related experimental activities. The WPEC assesses common needs for nuclear data improvements and these needs are then addressed by initiating joint evaluation efforts. The work is performed in specially established subgroups, consisting of experts from the participating evaluation projects. The outcome of these subgroups is published in reports, issued by the NEA. Current WPEC activities comprise for example a number of studies related tonuclear data uncertainties, including a review of methods for the combined use of integral experiments and covariance data, as well as evaluations of some of the major actinides, such as 235U and 239Pu. This paper gives an overview of current and planned activities within the WPEC.
Keywords: Nuclear Data Evaluation, International co-operation, JEFF, JENDL, BROND, CENDL, ENDF,

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