研究者情報 | 神奈川大学

タムラ　タダヒサ Tamura Tadahisa 田村　忠久所属神奈川大学工学部応用物理学科神奈川大学大学院工学研究科工学専攻（応用物理学領域）職種教授
言語種別	日本語
発行・発表の年月	2007/07
形態種別	学術雑誌
標題	Prospects of gamma-ray observations and dark matter search with CALET
執筆形態	共著
掲載誌名	Proceedings of the 30th International Cosmic Ray Conference, Merida, Yucatan, Mexico
巻・号・頁	4,817-820頁
著者・共著者	K.Yoshida, S.Torii, K.Kasahara, Y.Shimizu, T.Tamura, J.Chang
概要	国際宇宙ステーションでの宇宙線観測計画CALETを用いたガンマ線観測と暗黒物質探索について。 We are developing the CALET (CALorimetric Electron Telescope) instrument for the observation of high-energy electrons and gamma rays at the Exposed Facility of the Japanese ExperimentModule on the International Space Station (ISS). CALET has a capability to observe electrons (+positrons) in 1 GeV-10 TeV and gamma rays in 20 MeV-10 TeV with a high energy resolution of < 2 % over 100 GeV, a good angular resolution of 0.06 deg at 100 GeV, and a high proton rejection power of 10⁶. CALET has the geometrical factor of nearly 0.8 m2sr and three-years observation is expected. Thus, CALET is a complementary gamma-ray detector with GLAST, HESS and so on. In particular, the excellent energy resolution of CALET, which is much better than GLAST or air 　 Cherenkov telescopes over 10 GeV, is ideal for detection of gamma-ray lines in the GeV-TeV region from WIMP dark matter annihilations. The high precise observations of electrons(+positrons) also enable us to detect distinctive positron features from WIMP annihilations. In this paper, we present prospects of gamma-ray observations and dark matter search by the hybrid observations of gamma rays and electrons with CALET.