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	2009/07
形態種別	学術雑誌
標題	Conceptual Design of Data Acquisition System for CALET on the ISS
執筆形態	共著
掲載誌名	PROCEEDINGS OF THE 31st ICRC, LODZ 2009
巻・号・頁	http://icrc2009.uni.lodz.pl/proc/pdf/icrc0572.pdf
著者・共著者	Tadahisa Tamura, Shoji Torii, Shunsuke Ozawa, Hiroyuki Murakami, Yusaku Katayose, Shin Kubo, Atsumasa Yoshida, Shiro Ueno, Hiroshi Tomida for the CALET Collaboration
概要	国際宇宙ステーションでの観測を目指している宇宙線観測装置CALETのデータ収集システムについて、データ取り込みのためのトリガー生成方法などについての開発計画について報告した。 We have been developing CALET (CALorimetric Electron Telescope) to make observations of high energy electrons, gamma-rays, and nuclei on the International Space Station (ISS). CALET consists of an imaging calorimeter (IMC), a total absorption calorimeter (TASC), a silicon array (SIA), and an anti coincidence detector (ACD). Triggers to start data acquisition of CAL are generated by combining information on tracks in IMC, partial shower energies in TASC, and traverse of charged particles through ACD. Three trigger conditions can be used simultaneously. The first one is for high energy cosmic rays over 10 GeV. The second one is for low energy electrons and protons affected by solar activities between 1 GeV and 10 GeV. The third one is for low energy gamma-rays from 20 MeV to 10 GeV. CALET can detect gamma-ray bursts (GRBs) in a wide energy range with a gamma-ray burst monitor (GBM) and CAL. Data of sum of energy deposit in TASC and event time are stored in ring memory for a certain period even if the low energy gamma-ray trigger is off.