The calorimetric electron telescope (CALET) project

Shoji Torii, F. Makino, N. Tateyama, T. Tamura, Kenji Yoshida, T. Kashiwagi, K. Hibino, K. Anraku, T. Yamashita, J. Nishimura, T. Yamagami, Y. Saito, M. Takayanagi, M. Shibata, Y. Katayose, Y. Uchihori, H. Kitamura, K. Kasahara, H. Murakami, T. Kobayashi & 4 others Y. Komori, K. Mizutani, T. Yuda, J. Chang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The CALorimetric Electron Telescope, CALET, mission is proposed for the Japanese Experiment Module Exposed Facility, JEM-EF, of the International Space Station. The scientific objective is to investigate the origin of the cosmic electrons and gamma-rays in very high energy region. The detector is composed of an imaging calorimeter of scintillating fibers and a total absorption calorimeter. The thickness of all absorber is 36 r.1 for electro-magnetic particles and 1.7m.f.p for protons. Total mass of the payload is nearly 2.500kg, and the effective geometrical factor is 0.5-1.0m2sr. The detector is capable of measuring the electrons from a few GeV to 10 TeV and the gamma-rays from 20MeV to several TeV, keeping the energy resolution within a few % over 10 GeV. The hadron rejection power should be nearly 106 in order to observe the electrons up to 10TeV and it is achieved by measuring the fine structure of shower development. Much higher hadron-rejection power in the gamma-ray observation could be easily attained by the anti-conincidence counter covering the detector. Observation of protons and heavy nulei from 1 to 1000 TeV is also consedered to investigate the acceleartion limit in supernova shocks. We are expecting to launch the CALET around 2010 by the Japanese H-II Transfer Vehicle, HTV.

Original languageEnglish
Pages (from-to)41-44
Number of pages4
JournalJournal of the Physical Society of Japan
Volume77
Issue numberSUPPL. B
Publication statusPublished - 2008
Externally publishedYes

Fingerprint

particle telescopes
gamma rays
rejection
calorimeters
detectors
scintillating fibers
electrons
protons
International Space Station
showers
payloads
supernovae
absorbers
vehicles
counters
coverings
modules
fine structure
shock
energy

Keywords

  • Cosmic ray
  • Electron
  • Gamma-ray
  • High energy
  • Scintillating fiber
  • Space station

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Torii, S., Makino, F., Tateyama, N., Tamura, T., Yoshida, K., Kashiwagi, T., ... Chang, J. (2008). The calorimetric electron telescope (CALET) project. Journal of the Physical Society of Japan, 77(SUPPL. B), 41-44.

The calorimetric electron telescope (CALET) project. / Torii, Shoji; Makino, F.; Tateyama, N.; Tamura, T.; Yoshida, Kenji; Kashiwagi, T.; Hibino, K.; Anraku, K.; Yamashita, T.; Nishimura, J.; Yamagami, T.; Saito, Y.; Takayanagi, M.; Shibata, M.; Katayose, Y.; Uchihori, Y.; Kitamura, H.; Kasahara, K.; Murakami, H.; Kobayashi, T.; Komori, Y.; Mizutani, K.; Yuda, T.; Chang, J.

In: Journal of the Physical Society of Japan, Vol. 77, No. SUPPL. B, 2008, p. 41-44.

Research output: Contribution to journalArticle

Torii, S, Makino, F, Tateyama, N, Tamura, T, Yoshida, K, Kashiwagi, T, Hibino, K, Anraku, K, Yamashita, T, Nishimura, J, Yamagami, T, Saito, Y, Takayanagi, M, Shibata, M, Katayose, Y, Uchihori, Y, Kitamura, H, Kasahara, K, Murakami, H, Kobayashi, T, Komori, Y, Mizutani, K, Yuda, T & Chang, J 2008, 'The calorimetric electron telescope (CALET) project', Journal of the Physical Society of Japan, vol. 77, no. SUPPL. B, pp. 41-44.
Torii S, Makino F, Tateyama N, Tamura T, Yoshida K, Kashiwagi T et al. The calorimetric electron telescope (CALET) project. Journal of the Physical Society of Japan. 2008;77(SUPPL. B):41-44.
Torii, Shoji ; Makino, F. ; Tateyama, N. ; Tamura, T. ; Yoshida, Kenji ; Kashiwagi, T. ; Hibino, K. ; Anraku, K. ; Yamashita, T. ; Nishimura, J. ; Yamagami, T. ; Saito, Y. ; Takayanagi, M. ; Shibata, M. ; Katayose, Y. ; Uchihori, Y. ; Kitamura, H. ; Kasahara, K. ; Murakami, H. ; Kobayashi, T. ; Komori, Y. ; Mizutani, K. ; Yuda, T. ; Chang, J. / The calorimetric electron telescope (CALET) project. In: Journal of the Physical Society of Japan. 2008 ; Vol. 77, No. SUPPL. B. pp. 41-44.
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AU - Torii, Shoji

AU - Makino, F.

AU - Tateyama, N.

AU - Tamura, T.

AU - Yoshida, Kenji

AU - Kashiwagi, T.

AU - Hibino, K.

AU - Anraku, K.

AU - Yamashita, T.

AU - Nishimura, J.

AU - Yamagami, T.

AU - Saito, Y.

AU - Takayanagi, M.

AU - Shibata, M.

AU - Katayose, Y.

AU - Uchihori, Y.

AU - Kitamura, H.

AU - Kasahara, K.

AU - Murakami, H.

AU - Kobayashi, T.

AU - Komori, Y.

AU - Mizutani, K.

AU - Yuda, T.

AU - Chang, J.

PY - 2008

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N2 - The CALorimetric Electron Telescope, CALET, mission is proposed for the Japanese Experiment Module Exposed Facility, JEM-EF, of the International Space Station. The scientific objective is to investigate the origin of the cosmic electrons and gamma-rays in very high energy region. The detector is composed of an imaging calorimeter of scintillating fibers and a total absorption calorimeter. The thickness of all absorber is 36 r.1 for electro-magnetic particles and 1.7m.f.p for protons. Total mass of the payload is nearly 2.500kg, and the effective geometrical factor is 0.5-1.0m2sr. The detector is capable of measuring the electrons from a few GeV to 10 TeV and the gamma-rays from 20MeV to several TeV, keeping the energy resolution within a few % over 10 GeV. The hadron rejection power should be nearly 106 in order to observe the electrons up to 10TeV and it is achieved by measuring the fine structure of shower development. Much higher hadron-rejection power in the gamma-ray observation could be easily attained by the anti-conincidence counter covering the detector. Observation of protons and heavy nulei from 1 to 1000 TeV is also consedered to investigate the acceleartion limit in supernova shocks. We are expecting to launch the CALET around 2010 by the Japanese H-II Transfer Vehicle, HTV.

AB - The CALorimetric Electron Telescope, CALET, mission is proposed for the Japanese Experiment Module Exposed Facility, JEM-EF, of the International Space Station. The scientific objective is to investigate the origin of the cosmic electrons and gamma-rays in very high energy region. The detector is composed of an imaging calorimeter of scintillating fibers and a total absorption calorimeter. The thickness of all absorber is 36 r.1 for electro-magnetic particles and 1.7m.f.p for protons. Total mass of the payload is nearly 2.500kg, and the effective geometrical factor is 0.5-1.0m2sr. The detector is capable of measuring the electrons from a few GeV to 10 TeV and the gamma-rays from 20MeV to several TeV, keeping the energy resolution within a few % over 10 GeV. The hadron rejection power should be nearly 106 in order to observe the electrons up to 10TeV and it is achieved by measuring the fine structure of shower development. Much higher hadron-rejection power in the gamma-ray observation could be easily attained by the anti-conincidence counter covering the detector. Observation of protons and heavy nulei from 1 to 1000 TeV is also consedered to investigate the acceleartion limit in supernova shocks. We are expecting to launch the CALET around 2010 by the Japanese H-II Transfer Vehicle, HTV.

KW - Cosmic ray

KW - Electron

KW - Gamma-ray

KW - High energy

KW - Scintillating fiber

KW - Space station

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