• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Fundamental Development of Total Absorption Calorimeter on the ISS

Research Project

Project/Area Number 14540282
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 素粒子・核・宇宙線
Research InstitutionKanagawa University

Principal Investigator

YOSHIDA Kemji  Kanagawa University, Faculty of Engineering, Research Associate, 工学部, 助手 (90260984)

Co-Investigator(Kenkyū-buntansha) TORII Shoji  Kanagawa University, Faculty of Engineering, Professor, 工学部, 教授 (90167536)
TAMURA Tadahisa  Kanagawa University, Faculty of Engineering, Research Associate, 工学部, 助手 (90271361)
Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2003: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 2002: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsCosmic-Ray / Astrophysics
Research Abstract

We have performed the basic study of the Total Absorption Calorimeter (TASC) for CALorimetric Electron Telescope (CALET) on-board the International Space Station. At first, we have tested the capability of two kinds of crystal scintillators, bismuth germanate (BGO) and lead tungstate (PbWO_4), as the material of TASC. Although PbWO_4 has advantages such as larger density, shorter radiation length, and lower cost than BGO, we found that the light yield of PbWO_4 is much lower than that of BGO by about 1/50, measuring the light yield of BGO and PbWO_4 with PMT. While BGO can be read-out with photo-diode (PD), PbWO_4 has to be read-out with higher amplified photo-sensors such as PMT or avalanche photo-diode (APD). Therefore we performed Monte-Carlo simulations and experiments with BGO crystals as the material of TASC, in particular, it is required to achieve a proton rejection power of 10^6 for the observation of electrons up to 10TeV. From the simulation studies, we found that TASC with BGO crystals of 32 r. l. can realize this capability, using the relation of energy deposition and lateral spread of showers at the bottom layer of TASC. To confirm this proton rejection power also with experiments, we made a BGO calorimeter for beam test that consists of 26 BGO logs (2.5cm×2.5cm×30cm) with 10 layers, whose BGO crystals are read out with photo-diodes. We performed beam tests with electron (50GeV, 100GeV), proton (150GeV), and muon (120GeV) at CERN-SPS in 2003. Applying the proton rejection method developed with the simulation studies to the BGO calorimeter for beam test, we confirmed the capability of the proton rejection power.

Report

(3 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] T.Kobayashi, Y.Komori, K.Yoshida, J.Nishimura: "The Most Likely Sources of High-Energy Cosmic-ray Electrons in Supernova Remnants"The Astrophysical Journal. 601. 340-351 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Yoshida, S.Torii, T.Tamura et al.: "Scientific Performance of the CALET Instrument for 20MeV-10TeV Gamma-Ray Observation"Proc.of the 28^<th> International Cosmic Ray Conference. 5. 2791-2794 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Katayose, K.Anraku, K.Yoshida et al.: "Development of Total Absorption Calorimeter of CALET"Proc.of the 28^<th> International Cosmic Ray Conference. 4. 2197-2200 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] J.Chang, S.Torii, K.Kasahara, T.Tamura, K.Yoshida et al.: "Expected Performance of CALET from Simulation"Proc.of the 28^<th> International Cosmic Ray Conference. 4. 2185-2188 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Torii, T.Tamura, N.Tateyama, K.Yoshida et al.: "The CALorimetric Electron Telescope, CALET, Mission for the International Space Station"Proc.of the 28^<th> International Cosmic Ray Conference. 4. 2177-2180 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Yoshida, Y.Komori, T.Kobayashi, J.Nishimura: "he Origin of High Energy Cosmic-Ray Electrons and Nearby Supernova Remnants,"Proc.of the 28^<th> International Cosmic Ray Conference. 4. 1993-1996 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Kobayashi, Y.Komori, K.Yoshida, J.Nishimura: "The Most Likely Sources of High-Energy Cosmic-ray Electrons in Supernova Remnants"Astrophysical Journal. Vol.601. 340-351 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Yoshida, S.Torii, T.Tamura, J.Chang, K.Kasahara for the CALET team: "Scientific Performance of the CALET Instrument for 20MeV-10TeV Gamma-Ray Observation"Proc.of 28th International Cosmic Ray Conference. Vol.4. 2791-2794 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Y.Katayose, K.Anraku, K.Yoshida, S.Torii, T.Tamura for the CALET team: "Development of Total Absorption Calorimeter of CALET"Proc.of 28th International Cosmic Ray Conference. Vol.4. 2197-2200 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] J.Chang, S.Torii, K.Kasahara, T.Tamura, K.Yoshida for the CALET team: "Expected Performance of CALET from Simulation"Proc.of 28th International Cosmic Ray Conference. Vol.4. 2185-2188 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Torii, T.Tamura, N.Tateyama, K.Yoshida et al.: "The CALorimetric Electron Telescope, CALET, Mission for the International Space Station"Proc.of 28th International Cosmic Ray Conference. Vol.4. 2177-2180 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] K.Yoshida, Y.Komori, T.Kobayashi, J.Nishimura: "The Origin of High Energy Cosmic-Ray Electrons and Nearby Supernova Remnants"Proc.of 28th International Cosmic Ray Conference. Vol.4. 1993-1997 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Kobayashi, Y.Komori, K.Yoshida, J.Nishimura: "The Most Likely Sources of High-Energy Cosmic-Ray Electrons in supernova Remnants"The Astrophysical Journal. 601. 340-351 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] S.Torii, T.Tamura, N.Tateyama, K.Yoshida, et al.: "The CALorimetic Electron Telescope, CALET, Mission for the International space station"Proc.of the 28th ICRC. 4. 2177-2180 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] J.Chang, S.Torii, K.Kasahara, T.Tamura, K.Yoshida, et al.: "Expected Performance of CALET from Simulation"Proc.of the 28th ICRC. 4. 2185-2188 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.Katayose, K.Anraku, Yoshida, S.Torii, T.Tamura, et al.: "Development of Total Absorption calorimeter of CALET"Proc.of the 28th ICRC. 4. 2197-2200 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Yoshida, S.Torii, T.Tamura, et al.: "Scientific Performance of the CALET Instrument for the 20MeV-10TeV Gamma-ray Observation"Proc.of the 28th ICRC. 5. 2791-2794 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Yoshida, T.Kobayashi, Y.Komori, J.Nishimura: "The Origin of High Energy Cosmic-Ray Electrons and Nearby Supernova Remnants"Proc.of the 28th ICRC. 4. 1993-1996 (2003)

    • Related Report
      2003 Annual Research Report

URL: 

Published: 2002-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi