@article{oai:nagoya.repo.nii.ac.jp:00028392, author = {Yamamoto, Akio and Endo, Tomohiro and Nagano, Hiroaki and Ohoka, Yasunori and Yamamoto, Kento}, issue = {6}, journal = {Journal of Nuclear Science and Technology}, month = {}, note = {Increased fuel assembly gap due to bowing in commercial light-water reactors (LWRs) has an impact on local pin-power distribution due to increased local moderation. In order to consider the effect of increased assembly gap without explicit consideration of increased gap width, a correction method of cross sections in the gap region is proposed. In this cross section correction method, the average chord length of gap region is preserved to capture the effect of increased gap width. The validity of the present method is confirmed by verification calculations in a single assembly and 5 × 5 assembly geometries using the GENESIS code, which is a transport code based on the method of characteristics., Published online: 14 Apr 2019 ファイル公開:2020/04/14}, pages = {471--478}, title = {A simple treatment of increased gap due to fuel assembly bowing through correction of cross sections}, volume = {56}, year = {2019} }