The calorimetric electron telescope (CALET) project

Shoji Torii, F. Makino, N. Tateyama, T. Tamura, K. 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

    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, 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.

    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, 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. / 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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    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.",
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    AU - Torii, Shoji

    AU - Makino, F.

    AU - Tateyama, N.

    AU - Tamura, T.

    AU - Yoshida, K.

    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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    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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