Expected CALET telescope performance from monte carlo simulations

Yosui Akaike, Katsuaki Kasahara, Shoji Torii, Shunsuke Ozawa, Yuki Shimizu, Mikihiko Karube, Keisuke Yoshida, Kenji Yoshida, Masakatsu Ichimura

Research output: Contribution to conferencePaper

13 Citations (Scopus)

Abstract

The CALorimetric Electron Telescope, CALET, is a versatile detector for exploring the high energy universe, planned to be placed on the Japanese Experiment Module Facility of the International Space Station, ISS. CALET is designed to perform direct measurements of electrons from 1 GeV to 20 TeV, gamma-rays from 10 GeV to 10 TeV, and protons and nuclei from several 10 GeV to 1000 TeV. The main detector consists of a Charge Detector (CHD), an Imaging Calorimeter (IMC), and a Total Absorption Calorimeter (TASC). The total thickness of the calorimeter is 30 X0 for electromagnetic particles or 1.3 λ for protons. We have been carrying out Monte Carlo simulations with EPICS to study the CALET performance. With its imaging and deep calorimeter, CALET provides excellent proton rejection, ∼ 105, and a high energy resolution, ∼2%, over 100 GeV for electromagnetic particles, which make possible the observation of electrons and gamma-rays into the TeV region. In this paper, we will present the expected performance in observing the different particle species, including the geometric factor, the trigger efficiency, the energy resolution and the particle identification power.

Original languageEnglish
Pages371-374
Number of pages4
DOIs
Publication statusPublished - 2011 Jan 1
Event32nd International Cosmic Ray Conference, ICRC 2011 - Beijing, China
Duration: 2011 Aug 112011 Aug 18

Conference

Conference32nd International Cosmic Ray Conference, ICRC 2011
CountryChina
CityBeijing
Period11/8/1111/8/18

Keywords

  • Calorimeter
  • Cosmic ray electrons
  • Gamma-rays
  • ISS
  • Nuclei
  • Simulation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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  • Cite this

    Akaike, Y., Kasahara, K., Torii, S., Ozawa, S., Shimizu, Y., Karube, M., Yoshida, K., Yoshida, K., & Ichimura, M. (2011). Expected CALET telescope performance from monte carlo simulations. 371-374. Paper presented at 32nd International Cosmic Ray Conference, ICRC 2011, Beijing, China. https://doi.org/10.7529/ICRC2011/V06/0769