The ambient dose equivalent from lunar gamma-rays observed by Kaguya gamma-ray spectrometer

Y. Takeda, K. Hayatsu, S. Kobayashi, M. Hareyama, Nobuyuki Hasebe, S. Kodaira, K. J. Kim

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Abstract

    The gamma-ray spectrometer (GRS) onboard the lunar polar explorer, SELENE (KAGUYA), globally measured gamma rays emitted from the lunar surface. Using the gamma-ray data observed by the GRS, global map of ambient dose equivalent due to lunar gamma rays for the first time are obtained for the energies from 200 keV to 10 MeV. The dose due to gamma rays on the lunar surface during the period of 2008 at solar minimum of solar activity ranges from 2.58 to 4.30 mSv/yr, depending on the regions of the Moon, which give higher than that due to gamma rays from natural radioactivity isotopes at the Earth. It is found that the dose is high in mare regions, especially the Procellarum KREEP Terrain, where natural radioactive isotopes such as U, Th and K and major elements such as Fe and Ti are abundant.

    Original languageEnglish
    Title of host publicationAdvances in Geosciences: Volume 19: Planetary Science (PS)
    PublisherWorld Scientific Publishing Co.
    Pages69-76
    Number of pages8
    ISBN (Electronic)9789812838162
    ISBN (Print)9812838155, 9789812838155
    DOIs
    Publication statusPublished - 2010 Jan 1

    Fingerprint

    spectrometer
    isotope
    solar activity
    Moon
    energy
    dose
    equivalent dose
    natural radioactivity

    ASJC Scopus subject areas

    • Earth and Planetary Sciences(all)

    Cite this

    Takeda, Y., Hayatsu, K., Kobayashi, S., Hareyama, M., Hasebe, N., Kodaira, S., & Kim, K. J. (2010). The ambient dose equivalent from lunar gamma-rays observed by Kaguya gamma-ray spectrometer. In Advances in Geosciences: Volume 19: Planetary Science (PS) (pp. 69-76). World Scientific Publishing Co.. https://doi.org/10.1142/9789812838162_0006

    The ambient dose equivalent from lunar gamma-rays observed by Kaguya gamma-ray spectrometer. / Takeda, Y.; Hayatsu, K.; Kobayashi, S.; Hareyama, M.; Hasebe, Nobuyuki; Kodaira, S.; Kim, K. J.

    Advances in Geosciences: Volume 19: Planetary Science (PS). World Scientific Publishing Co., 2010. p. 69-76.

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Takeda, Y, Hayatsu, K, Kobayashi, S, Hareyama, M, Hasebe, N, Kodaira, S & Kim, KJ 2010, The ambient dose equivalent from lunar gamma-rays observed by Kaguya gamma-ray spectrometer. in Advances in Geosciences: Volume 19: Planetary Science (PS). World Scientific Publishing Co., pp. 69-76. https://doi.org/10.1142/9789812838162_0006
    Takeda Y, Hayatsu K, Kobayashi S, Hareyama M, Hasebe N, Kodaira S et al. The ambient dose equivalent from lunar gamma-rays observed by Kaguya gamma-ray spectrometer. In Advances in Geosciences: Volume 19: Planetary Science (PS). World Scientific Publishing Co. 2010. p. 69-76 https://doi.org/10.1142/9789812838162_0006
    Takeda, Y. ; Hayatsu, K. ; Kobayashi, S. ; Hareyama, M. ; Hasebe, Nobuyuki ; Kodaira, S. ; Kim, K. J. / The ambient dose equivalent from lunar gamma-rays observed by Kaguya gamma-ray spectrometer. Advances in Geosciences: Volume 19: Planetary Science (PS). World Scientific Publishing Co., 2010. pp. 69-76
    @inbook{1e7308e62e5740d3b4a30fcf0baceeb4,
    title = "The ambient dose equivalent from lunar gamma-rays observed by Kaguya gamma-ray spectrometer",
    abstract = "The gamma-ray spectrometer (GRS) onboard the lunar polar explorer, SELENE (KAGUYA), globally measured gamma rays emitted from the lunar surface. Using the gamma-ray data observed by the GRS, global map of ambient dose equivalent due to lunar gamma rays for the first time are obtained for the energies from 200 keV to 10 MeV. The dose due to gamma rays on the lunar surface during the period of 2008 at solar minimum of solar activity ranges from 2.58 to 4.30 mSv/yr, depending on the regions of the Moon, which give higher than that due to gamma rays from natural radioactivity isotopes at the Earth. It is found that the dose is high in mare regions, especially the Procellarum KREEP Terrain, where natural radioactive isotopes such as U, Th and K and major elements such as Fe and Ti are abundant.",
    author = "Y. Takeda and K. Hayatsu and S. Kobayashi and M. Hareyama and Nobuyuki Hasebe and S. Kodaira and Kim, {K. J.}",
    year = "2010",
    month = "1",
    day = "1",
    doi = "10.1142/9789812838162_0006",
    language = "English",
    isbn = "9812838155",
    pages = "69--76",
    booktitle = "Advances in Geosciences: Volume 19: Planetary Science (PS)",
    publisher = "World Scientific Publishing Co.",

    }

    TY - CHAP

    T1 - The ambient dose equivalent from lunar gamma-rays observed by Kaguya gamma-ray spectrometer

    AU - Takeda, Y.

    AU - Hayatsu, K.

    AU - Kobayashi, S.

    AU - Hareyama, M.

    AU - Hasebe, Nobuyuki

    AU - Kodaira, S.

    AU - Kim, K. J.

    PY - 2010/1/1

    Y1 - 2010/1/1

    N2 - The gamma-ray spectrometer (GRS) onboard the lunar polar explorer, SELENE (KAGUYA), globally measured gamma rays emitted from the lunar surface. Using the gamma-ray data observed by the GRS, global map of ambient dose equivalent due to lunar gamma rays for the first time are obtained for the energies from 200 keV to 10 MeV. The dose due to gamma rays on the lunar surface during the period of 2008 at solar minimum of solar activity ranges from 2.58 to 4.30 mSv/yr, depending on the regions of the Moon, which give higher than that due to gamma rays from natural radioactivity isotopes at the Earth. It is found that the dose is high in mare regions, especially the Procellarum KREEP Terrain, where natural radioactive isotopes such as U, Th and K and major elements such as Fe and Ti are abundant.

    AB - The gamma-ray spectrometer (GRS) onboard the lunar polar explorer, SELENE (KAGUYA), globally measured gamma rays emitted from the lunar surface. Using the gamma-ray data observed by the GRS, global map of ambient dose equivalent due to lunar gamma rays for the first time are obtained for the energies from 200 keV to 10 MeV. The dose due to gamma rays on the lunar surface during the period of 2008 at solar minimum of solar activity ranges from 2.58 to 4.30 mSv/yr, depending on the regions of the Moon, which give higher than that due to gamma rays from natural radioactivity isotopes at the Earth. It is found that the dose is high in mare regions, especially the Procellarum KREEP Terrain, where natural radioactive isotopes such as U, Th and K and major elements such as Fe and Ti are abundant.

    UR - http://www.scopus.com/inward/record.url?scp=84970984794&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84970984794&partnerID=8YFLogxK

    U2 - 10.1142/9789812838162_0006

    DO - 10.1142/9789812838162_0006

    M3 - Chapter

    AN - SCOPUS:84970984794

    SN - 9812838155

    SN - 9789812838155

    SP - 69

    EP - 76

    BT - Advances in Geosciences: Volume 19: Planetary Science (PS)

    PB - World Scientific Publishing Co.

    ER -