A future plan in observing ultra-heavy nuclei (Z = 30-110) of cosmic rays with large-scale collector at the lunar base

Nobuyuki Hasebe, S. Kodaira, M. Hareyama, N. Yasuda

    研究成果: Article

    1 引用 (Scopus)

    抄録

    Lunar-based measurement of galactic cosmic ray (GCR) nuclei with a high precision is a challenging approach in cosmic ray research for the coming 20 years. This approach focuses to measure the elemental composition of Pt- and Pb-groups, actinide and possibly trans-uranic nuclei of Pu and Cm. The observation covers a wide range of scientific themes including the study on the origin of GCR nuclei, the characteristic time, heating and acceleration mechanism of GCR particles. A large-scaled particle telescope is required in order to measure those nuclides with high precision. Solid state nuclear track detectors (SSTDs) with a geometric factor of about 1000 m2sr allow us to measure them easily. Fluorescent nuclear track detector such as Al2O3 doped with C and Mg is the best candidate at present among SSTDs for a lunar-based experiment which is currently the focus of an international program of scientific investigation. A permanent sunshine region near crater at lunar polar region is thought to be an excellent site. A two-year-exposure by the large-scaled telescope would result in the detection of about 30,000 actinides in GCRs.

    元の言語English
    ページ(範囲)913-916
    ページ数4
    ジャーナルRadiation Measurements
    44
    発行部数9-10
    DOI
    出版物ステータスPublished - 2009 10

    Fingerprint

    Moon bases
    Cosmic rays
    heavy nuclei
    accumulators
    cosmic rays
    nuclei
    Actinides
    detectors
    Detectors
    particle telescopes
    gas cooled reactors
    Telescopes
    solid state
    nuclides
    craters
    polar regions
    telescopes
    Isotopes
    heating
    Heating

    ASJC Scopus subject areas

    • Radiation
    • Instrumentation

    これを引用

    A future plan in observing ultra-heavy nuclei (Z = 30-110) of cosmic rays with large-scale collector at the lunar base. / Hasebe, Nobuyuki; Kodaira, S.; Hareyama, M.; Yasuda, N.

    :: Radiation Measurements, 巻 44, 番号 9-10, 10.2009, p. 913-916.

    研究成果: Article

    Hasebe, Nobuyuki ; Kodaira, S. ; Hareyama, M. ; Yasuda, N. / A future plan in observing ultra-heavy nuclei (Z = 30-110) of cosmic rays with large-scale collector at the lunar base. :: Radiation Measurements. 2009 ; 巻 44, 番号 9-10. pp. 913-916.
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