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Global dose distributions of Lunar neutrons and gamma-rays obtained by the Kaguya gamma-ray spectrometer
https://repo.qst.go.jp/records/65740
https://repo.qst.go.jp/records/65740b04c1e28-2783-4dd7-be79-6f06a8f48aba
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2015-09-08 | |||||
| タイトル | ||||||
| タイトル | Global dose distributions of Lunar neutrons and gamma-rays obtained by the Kaguya gamma-ray spectrometer | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
N.Hasebe
× N.Hasebe× R.Hayashida× K.Yoshida× M.Naito× H.Kusano× H.Nagaoka× C.Furuuchi× M.Hareyama× S.Kodaira× J.Matias-Lopes× 長谷部 信行× 吉田 和起× 晴山 慎× 小平 聡 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The Kaguya Gamma-Ray Spectrometer (KGRS) onboard the Japanese lunar polar orbiter "Kaguya" has measured the gamma rays emitted from the global lunar surface during the period Feb. 10 to May 28, 2009. The gamma-rays and neutrons are genetrated by nuclear interaction of Galactic Cosmic Rays (GCRs) with the Moon surface materuals. Using these gamma-ray and neutron data measured by the KGRsm the global maps of ambient doseequivalents due to lunar neutrons and gamma-rays were obtained. The mean doses from neutrons and gamma-rays on the lunar surface were 70 mSv/yr and 3mSv/yr, respectively. The dose equivalents are found to be high on mare regions, especially western Mare, which is attributed to the correlation with the enhancement of Fe and Ti and depletion of Ca and Al. The doses are also enhanced in the Eastern mare region. The doses in highlands are much lower than 70 mSv/yr because the elements are depleted in Fe and Ti and enhanced in Ca and Ai. Especially, the neutron dose, occupying about 10% of the total ambient dose equivalent due to primary GCR particles, is considerable contribution for radiation safety and protection in up-coming manned mission on the Moon. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | The 20th Workshop on Radiation Monitoring for the International Space Station | |||||
| 発表年月日 | ||||||
| 日付 | 2015-09-09 | |||||
| 日付タイプ | Issued | |||||
