Neutron production in the lunar subsurface from galactic cosmic rays

Shuya Ota*, Lembit Sihver, Shingo Kobayashi, Nobuyuki Hasebe


    研究成果: Conference contribution

    1 被引用数 (Scopus)


    The neutron production from galactic cosmic ray (GCR) protons and alpha particles in the lunar subsurface was estimated using the three-dimensional Monte Carlo simulation code PHITS. The PHITS simulations of equilibrium neutron density profiles in the lunar subsurface were compared with experimental data by the Apollo 17 Lunar Neutron Probe Experiment. By use of the latest GCR spectra based on BESS measurements and well-benchmarked nuclear interaction models, our calculations well reproduced the data within the experimental error of 15% (measurement) + 30% (systematic) at the region shallower than 300 g/cm 2. However, our calculation showed 10-20% higher values in the deeper region.

    ホスト出版物のタイトルIEEE Aerospace Conference Proceedings
    出版ステータスPublished - 2010
    イベント2010 IEEE Aerospace Conference - Big Sky, MT
    継続期間: 2010 3月 62010 3月 13


    Other2010 IEEE Aerospace Conference
    CityBig Sky, MT

    ASJC Scopus subject areas

    • 航空宇宙工学
    • 宇宙惑星科学


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