タムラ タダヒサ   Tamura Tadahisa
  田村 忠久
   所属   神奈川大学  工学部 物理学教室
    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 2014/08
形態種別 その他
標題 PERFORMANCE OF PARTICLE IDENTIFICATION WITH THE CALET CALORIMETER EXPECTED BY CERN-SPS BEAM TESTS
執筆形態 共著
掲載誌名 The 40th COSPAR Scientific Assembly 2014, Moscow Russia
著者・共著者 Yosui Aakaike, Tadahisa Tamura for the CALET Collaboration
概要 CALorimetric Electron Telescope, CALET, is a new observatory to be placed on the International Space Station. Major scienti c objectives are to search nearby cosmic ray sources and dark matter signatures by carrying out accurate measurements of cosmic ray electrons in 1 GeV - 20 TeV and gamma-rays in 4 GeV - 10 TeV. Since proton background is very large, high proton rejection power is mandatory for high energy electron and gamma-ray measurements. CALET has an imaging and deep calorimeter with 30 X0 for electromagnetic particles, which provides high proton rejection and excellent energy resolution. We have been carrying out Monte Carlo simulations to study the detector performance and acceleration beam tests at CERN-SPS to assess the validity of our simulations. In this paper, we present measured performance of particle identi cation such as electron/proton separation and electron/gamma-ray separation compared to the simulation results, and expected spectra of electron and gamma-ray observed by CALET.