@inproceedings{oai:repo.qst.go.jp:00053561, author = {橋本, 義徳 and 藤澤, 高志 and 森本, 輝久 and 藤田, 雄三 and 本間, 壽廣 and 武藤, 豪 and 野田, 耕司 and 佐藤, 幸夫 and 上杉, 智教 and 山田, 聰 and 藤澤 高志 and 本間 壽廣 and 野田 耕司 and 佐藤 幸夫 and 上杉 智教 and 山田 聰}, book = {日本加速器学会年会・リニアック技術研究会}, month = {Jul}, note = {A fast,non-destructive beam-profile monitor was developed using an oxigen gas-sheet target in the HIMAC synchrotron .The size of the gas-sheet target was 85 mm in width and 1.3mm in thickness,of which the density was 1x10^-4^Pa.The base vacuum in the ring was not deteriorated by this gas-sheet target,and was on the order of 10^-8^Pa.In typical cases,carbon ion beams are accelerated from 6 to 290-430MeV/n for cancer therapy,in which the intensity is 2.5x10^8^ particles/bunch.For these beams,two-dimensional beam profiles were successfully measured within the time(~100ns)of the bunch separation.This article describes both the technical and physical aspects of the monitor together with some results.}, pages = {223--225}, title = {酸素分子ガスシートを用いたビームプロファイルモニター}, volume = {2}, year = {2005} }