JENDL-4.0; A New library for nuclear science and engineering

Shibata, Keiichi; Iwamoto, Osamu  ; Nakagawa, Tsuneo*; Iwamoto, Nobuyuki  ; Ichihara, Akira ; Kunieda, Satoshi  ; Chiba, Satoshi; Furutaka, Kazuyoshi  ; Otsuka, Naohiko*; Osawa, Takaaki*; Murata, Toru*; Matsunobu, Hiroyuki*; Zukeran, Atsushi*; Kamada, So*; Katakura, Junichi

The fourth version of Japanese Evaluated Nuclear Data Library has been produced. In the new library, much emphasis is placed on the improvements of fission product and minor actinoid data. Two nuclear model codes were developed to evaluate the cross sections of fission products and minor actinoids. Coupled-channel optical model parameters, which can be applied to wide mass and energy regions, were obtained for nuclear model calculations. Thermal cross sections of actinoids were determined by considering recent experimental data or by the systematics of neighboring nuclei. A simultaneous evaluation was performed for the fission cross sections of important uranium and plutonium isotopes above 10 keV. The data on FP were re-evaluated, and new evaluations were performed for 30 nuclides. The data on light elements and structural materials were partly re-evaluated. The new library was released as JENDL-4.0 in May 2010.