@inproceedings{oai:u-fukui.repo.nii.ac.jp:00022963, author = {YAMASAKI, Masatoshi and UNESAKI, Hironobu and YAMAMOTO, Akio and TAKEDA, Toshikazu and MORI, Masaaki}, book = {Advanced Fuel Pellet Mterials and Fuel Rod Designs for Water Cooled Reactors}, month = {Nov}, note = {In order to reduce the number of spent fuel assemblies and to improve fuel cycle economics, the development project on Erbia credt Super High-Burmup' (=Er-SHB) fuel with above 5 wt% uranium enrichment is in progress. The program covers wide aspect of the development of LWR fuel, in which low cootmt of Erbia is fully distributed. In this paper, (I)outline of tbe concept of Er-SHB fuel, (2) measurement and analyses results of critical assembly experiment with fully Erbia loaded core, (3) Erbia COntent for Subcriticality judgment(=ECOS)diagram 'defined by a series of criticality safety analyses for typical geometries, are presented.}, pages = {173--189}, title = {Current Status of the Development Project on Erbia Credit Super High Burnup Fuel}, year = {2009} }