Germanium detector with Stirling cryocooler for lunar gamma-ray spectroscopy

Masanori Kobayashi, Nobuyuki Hasebe, Takuji Hiramoto, Takashi Miyachi, Satoshi Murasawa, Hiroyuki Okada, Osamu Okudaira, Naoyuki Yamashita, Alexey A. Berezhnoy, Eido Shibamura, Takeshi Takashima, Claude D'Uston, Katsuhiro Narasaki, Keisuke Tsurumi, Hiroshi Kaneko, Michio Nakazawa, Kunishiro Mori, Masayuki Fujii

    研究成果: Article査読

    17 被引用数 (Scopus)

    抄録

    The gamma-ray spectrometer (GRS) of Japanese lunar polar orbiter SELENE uses a Ge detector for the first time on a lunar mission. This spectrometer will observe lunar gamma rays for 1 year or more to determine chemical composition over the entire lunar surface. For cooling the Ge detector, we adopted a Stirling cryocooler. The SELENE GRS flight model was completed and an energy resolution of 3.0 keV (FWHM) at 1.33 MeV was achieved. This paper describes the details of the detector-cryogenic system and its performance.

    本文言語English
    ページ(範囲)401-410
    ページ数10
    ジャーナルNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
    548
    3
    DOI
    出版ステータスPublished - 2005 8 21

    ASJC Scopus subject areas

    • 器械工学
    • 核物理学および高エネルギー物理学

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