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	2011/08
形態種別	学術雑誌
標題	Performance of the CALET Prototype: CERN Beam Test
執筆形態	共著
掲載誌名	32nd INTERNATIONAL COSMIC RAY CONFERENCE, BEIJING 2011
巻・号・頁	6,376-379頁
著者・共著者	MIKIHIKO KARUBE, SHOJI TORII, KATSUAKI KASAHARA, SHUNSUKE OZAWA, YOSUI AKAIKE, TOSHIHIDE AIBA, YOSHITAKA UEYAMA, MASANORI NAKAMURA, KEISUKE YOSHIDA, TADAHISA TAMURA, SHOJI OKUNO, YUSAKU KATAYOSE, YUKI SHIMIZU
概要	We are developing the CALET mission to observe high energy cosmic rays at the Japanese Experiment Module/Exposed Facility (JEM/EF) on the International Space Station. The instrument will be flown in 2013, and will be used for 5 years. The primary scientific purpose of CALET is to search for nearby cosmic ray sources and dark matter. We carried out an accelerator beam test with high energy particles with the CALET prototype at the CERN-SPS. The purpose of this test was to assess the detector performance as well as to study the accuracy of the Monte Carlo simulation method. The prototype detector consists of an imaging calorimeter with 256 scintillating fibers and a total absorption calorimeter consisting of 16 PWO logs. The longitudinal structure is similar with the CALET instrument. We used positron and proton beams in the energy region from 6 to 200 GeV, and from 30 to 150 GeV, respectively. Comparing the experimental data with the simulation results, we have measured the energy deposition in each component, the energy resolution, the lateral shower spread and the e/p separation capability.