Shielding Design Study of the Demonstration Fast Breeder Reactor (1) -Evaluation of the JASPER Experiment and Its Analytical Results -

Abstract

The JASPER Experiment had been conducted to obtain useful information on FBR shielding analysis accuracy. Results obtained from the post-experimental analyses are summarized in this paper. Both characteristics for bulk shielding attenuation and streaming of neutron through configurations consisting of several materials including B 4C, stainless steel, sodium and etc. were clarified and the analysis accuracy confirmed. The shielding analysis system for fast reactors has been improved and verified. These experimental data and analytical results were reviewed from a viewpoint of the applicability to the shielding design analysis of the DFBR. Useful information to be utilized in the design study of the DFBR is accumulated through those activities.

Characterization of neutron field in the experimental fast reactor JOYO for fuel and structural material irradiation test

“…11. The RADHEAT-V3 system (Koyama et al, 1977) computes the 100 energy group macroscopic cross-sections using JSDJ2/JFTJ2 shielding constants set (Handa et al, 2000) which is based on the JENDL-2 (Nakagawa, 1984). The modified new POPOP4 gamma ray production data library, which considers the delayed fission gamma ray, is used in the RADHEAT-V3.…”