Gamma-Ray Spectrometer for Japanese Lunar polar orbiter

Nobuyuki Hasebe, E. Shibamura, T. Atarashiya, T. Doke, C. D'Uston, M. Grande, T. Kashiwagi, J. Kikuchi, M. Kobayashi, K. Kubo, S. Mitani, K. Mori, K. Narasaki, K. Nomi, T. Takashima, R. Tanibata, R. C. Reedy

    研究成果: Article査読

    12 被引用数 (Scopus)


    We review the current status of the development of Gamma-Ray Spectrometer (GRS) for the lunar mission SELENE. The GRS instrument will measure gamma-rays in the energy range from 100 keV to 9 MeV. The instrument is a high-purity Ge detector surrounded by BGO and plastic scintillators which are operated as an anticoincidence shield, and is cooled by a Stirling cycle cryocooler. The primary objective is to provide global maps of the lunar composition. Measurements are anticipated for Fe, Ti, U, Th, K, Si, Mg, Al, O, Ca and Na over the entire lunar surface. The abundance of water ice in the permanently shaded craters at both the lunar poles will be measured with this instrument.

    ジャーナルAdvances in Space Research
    出版ステータスPublished - 1999

    ASJC Scopus subject areas

    • Space and Planetary Science
    • Astronomy and Astrophysics

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