ENDF/B-Ⅶ.0, which was released by the USA Cross Section Evaluation Working Group （CSEWG） in December 2006, was demonstrated to perform much better than previous ENDF evaluations over a broad range of benchmark expe...ENDF/B-Ⅶ.0, which was released by the USA Cross Section Evaluation Working Group （CSEWG） in December 2006, was demonstrated to perform much better than previous ENDF evaluations over a broad range of benchmark experiments. A high-energy （up to 150 MeV） multi-group library set named HEST1.0 with 253-neutron and 48-photon groups has been developed based on ENDF/B-Ⅶ.0 using the N JOY code. This paper provides a summary of the procedure to produce the library set and a detailed description of the verification of the multi-group library set by several shielding benchmark devices, in particular for high-energy neutron data. In addition, the first application of HEST1.0 to the shielding design of the China Spallation Neutron Source （CSNS） is demonstrated.展开更多
基金Supported by National Natural Science Foundation of China (10875042)Fundamental Research Funds for The Central Universities (10ZG08)Program for New Century Excellent Talents in University
文摘ENDF/B-Ⅶ.0, which was released by the USA Cross Section Evaluation Working Group （CSEWG） in December 2006, was demonstrated to perform much better than previous ENDF evaluations over a broad range of benchmark experiments. A high-energy （up to 150 MeV） multi-group library set named HEST1.0 with 253-neutron and 48-photon groups has been developed based on ENDF/B-Ⅶ.0 using the N JOY code. This paper provides a summary of the procedure to produce the library set and a detailed description of the verification of the multi-group library set by several shielding benchmark devices, in particular for high-energy neutron data. In addition, the first application of HEST1.0 to the shielding design of the China Spallation Neutron Source （CSNS） is demonstrated.
