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Polyethylene as a radiation shielding standard in simulated cosmic-ray environments
https://repo.qst.go.jp/records/45155
https://repo.qst.go.jp/records/45155a7f5e347-1d0d-43af-844f-6217901463f7
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-05-09 | |||||
タイトル | ||||||
タイトル | Polyethylene as a radiation shielding standard in simulated cosmic-ray environments | |||||
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_6501 | |||||
資源タイプ | journal article | |||||
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 |
B, Guetersloh Stephen
× B, Guetersloh Stephen× Zeitlin, Cary× Heilbronn, Lawrence× Miller, Jack× Komiyama, Tatsuto× Fukumura, Akifumi× Iwata, Yoshiyuki× Murakami, Takeshi× et.al× Guetersloh Stephen B× 込山 立人× 福村 明史× 岩田 佳之× 村上 健 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Radiation risk management for human space missions depends on accurate modeling of high-energy heavy ion transport in matter. The process of nuclear fragmentation can play a key role in reducing both the physical dose and the biological effectiveness of the radiation encountered in deep space. Hydrogenous materials and light elements are expected to be more effective shields against the deleterious effects of galactic cosmic rays (GCR) than aluminum, which is used in current spacecraft hulls. NASA has chosen polyethylene, CH2, as the reference material for accelerator-based radiation testing of multi-function composites that are currently being developed. A detailed discussion of the shielding properties of polyethylene under a variety of relevant experimental conditions is presented, along with Monte Carlo simulations of the experiments and other Monte Carlo calculations in which the entire GCR flux is simulated. The Monte Carlo results are compared to the accelerator data and we assess the usefulness of 1 GeV/amu 56Fe as a proxy for GCR heavy ions. We conclude that additional accelerator-based measurements with higher beam energies would be useful. |
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書誌情報 |
Nuclear Instruments & Methods in Physics Research Section B 巻 252, 号 2, p. 319-332, 発行日 2006-11 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0168-583X |