量研学術機関リポジトリ「QST-Repository」は、国立研究開発法人 量子科学技術研究開発機構に所属する職員等が生み出した学術成果（学会誌発表論文、学会発表、研究開発報告書、特許等）を集積しインターネット上で広く公開するサービスです。 Welcome to QST-Repository where we accumulates and discloses the academic research results(Journal Publications, Conference presentation, Research and Development Report, Patent, etc.) of the members of National Institutes for Quantum and Radiological Science and Technology.
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We found out that probability table (p-table) data for heating number in the FENDL-3.1d ACE files for 33 nuclei included negative values. Thus we investigated its reason in detail. As a result, it was specified that the reason was that partial KERMA factors of the radiative capture reaction became too large, because the energy-balance was broken or NJOY did not treat secondary gammas of a special format. We proposed two solutions for this issue; 1) to modify NJOY so as to calculate partial KERMA factors with the kinematics method, 2) to set p-tables for heating number to “1.0” or average heating numbers. New ACE files of FENDL-3.1d produced with the two solutions had no negative p-tables for heating number.
A negative probability table problem of heating number in FENDL-3.1d ACE file
