A comparative study of WIMSLIB group constants processed through NJOY'99 from ENDF/B-VI and JENDL-3.3 for ~(20)Ca,~(12)Mg, ~(15)P, ~(16)S, ~(14)Si, ~(22)Ti, and ~(23)V

摘要

The aim of this paper is the comparative study of WIMS library group constants generated from ENDF/B-VI and JENDL-3.3 evaluated nuclear data files. The WIMSLIB group constants have been generated from ENDF/B-VI and JENDL-3.3 through NJOY'99 for ~(20)Ca, ~(12)Mg, ~(15)P, ~(16)S, ~(14)Si, ~(22)Ti, and ~(23)V. The GROUPR output was processed by WIMSR to produce the WIMSLIB group constants. The parameters compared are slowing down power/lethargy widths, transport cross-section, absorption cross-section and Goldstein—Cohen A parameters. WIMS library generated from ENDF/B-VI and JENDL-3.3 have good agreement in general but some significant points of disagreement also exist. These observations can be used as inputs for the WIMS update library of TRIGA Mark-II research reactor and also for the ENDF/B-VI and JENDL-3.3 data verification tasks.