CALET mission on JEM/EF of the ISS

Shoji Torii

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    We are developing the CALorimetric Electron Telescope, CALET, mission for the Japanese Experiment Module Exposed Facility, JEM-EF, of the International Space Station. Major scientific objectives are to search for the nearby cosmic ray sources and dark matter by carrying out a precise measurement of the electrons in 1 GeV - 20 TeV and gamma rays in 20 MeV - several 10 TeV. CALET has a unique capability to observe electrons and gamma rays over 1 TeV since the hadron rejection power can be larger than 105 and the energy resolution better than a few % over 100 GeV. The detector consists of an imaging calorimeter with scintillating fibers and tungsten plates and a total absorption calorimeter with BGO scintillators. CALET has also a capability to measure cosmic ray H, He and heavy ions up to 1000 TeV. It also will have a function to monitor solar activity and gamma ray transients. The phase A study has started on a schedule of launch in 2013 by H-II Transfer Vehicle (HTV) for a 5 year observation.

    Original languageEnglish
    Pages (from-to)68-73
    Number of pages6
    JournalJournal of the Physical Society of Japan
    Volume78
    Issue numberSUPPL. A
    Publication statusPublished - 2009

    Keywords

    • Calorimeter
    • Cosmic ray
    • Dark matter
    • Electrons
    • Gamma rays
    • High energy
    • ISS
    • JEM

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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