@article{oai:repo.qst.go.jp:00055944,
 author = {Gunji, Syuichi and Nakamori, Nobuyuki and Kitamura, Hisashi and Kodaira, Satoshi and 郡司 修一 and 中森 伸行 and 北村 尚 and 小平 聡},
 journal = {2013 Annual Report of the Research Project with Heavy Ions at NIRS-HIMAC},
 month = {Oct},
 note = {We have been developing Gamma-Ray Burst (GRB) polarimeter for small tellite. The polarimeter consists of plastic scintillator and inorganic scintillator such as CsI(Tl), GSO(Ce), GYSO(Ce), or GAGG(Ce). To investigate the optimum rganic scintillator, we have compared the characteristics of the spallation for four kinds of scintillator, using 150 MeV proton beam in HIMAC. After irradiation of about 10 krad, we measured the background pulse height spectrum of each scintillator in the cave of lead for three months. As the results, we confirmed that the unting rate of the background for the GAGG scintillator is the lowest of the four after
one month of the irradiation. Then we decided to adopt the GAGG as the sorber of the GRB polarimeter},
 pages = {244--245},
 title = {Performance Test of Gamma-ray Burst Polarimeter for Small Satellite (12H308)},
 year = {2014}
}