High-dynamic range readout system using dual APD/PD for the CALET-TASC

Daijiro Ito, Yusaku Katayose, Kunishiro Mori, Hiroyuki Murakami, Shunsuke Ozawa, Yuki Shimizu, Shoji Torii, Yoshitaka Ueyama, Ryosuke Funahashi

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

The CALET (CALorimetric Electron Telescope) instrument is under development to observe cosmic-ray electrons, gamma-rays, and nuclei on the International Space Station (ISS). Total absorption calorimeter (TASC) of the CALET is adopted to image the development of shower particles with a stack of lead tungstenate (PWO) scintillators. Since it is necessary to measure in very high dynamic range, from a minimum ionization particle (MIP) to 106 shower particles, we developed a front-end circuit (FEC) which has a dynamic range of 7 orders of magnitude. Scintillation photons from PWO are read out by hybrid packages of Si avalanche photodiode and Si photo diodes (Dual APD/PD). Signals from each photodiode are amplified by a charge sensitive amplifier (CSA) with a high dynamic range of 4 orders of magnitude. Two amplifier circuits with different gains are provided for signal processing with each CSA. We will report on the basic performance of the FEC of CALET-TASC, especially the Dual APD/PD, hybrid integrated circuit (HIC) for the CSA, and the pulse shaping and main amplifier.

本文言語English
ホスト出版物のタイトルProceedings of the 32nd International Cosmic Ray Conference, ICRC 2011
出版社Institute of High Energy Physics
ページ375-378
ページ数4
6
DOI
出版ステータスPublished - 2011
イベント32nd International Cosmic Ray Conference, ICRC 2011 - Beijing
継続期間: 2011 8 112011 8 18

Other

Other32nd International Cosmic Ray Conference, ICRC 2011
CityBeijing
Period11/8/1111/8/18

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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