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  1. 原著論文

Investigation of shielding material properties for effective space radiation protection

https://repo.qst.go.jp/records/80012
https://repo.qst.go.jp/records/80012
e04a4b9b-ce32-46e2-9e34-7603d2b4b818
Item type 学術雑誌論文 / Journal Article(1)
公開日 2020-06-08
タイトル
タイトル Investigation of shielding material properties for effective space radiation protection
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 Naito, Masayuki

× Naito, Masayuki

WEKO 1070635

Naito, Masayuki

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Kodaira, Satoshi

× Kodaira, Satoshi

WEKO 1070636

Kodaira, Satoshi

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Ogawara, Ryo

× Ogawara, Ryo

WEKO 1070637

Ogawara, Ryo

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Tobita, Kenji

× Tobita, Kenji

WEKO 1070638

Tobita, Kenji

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Someya, Yoji

× Someya, Yoji

WEKO 1070639

Someya, Yoji

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Kusumoto, Tamon

× Kusumoto, Tamon

WEKO 1070640

Kusumoto, Tamon

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Kusano, Hiroki

× Kusano, Hiroki

WEKO 1070641

Kusano, Hiroki

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Kitamura, Hisashi

× Kitamura, Hisashi

WEKO 1070642

Kitamura, Hisashi

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Koike, Masamune

× Koike, Masamune

WEKO 1070643

Koike, Masamune

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Uchihori, Yukio

× Uchihori, Yukio

WEKO 1070644

Uchihori, Yukio

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Yamanaka, Masahiro

× Yamanaka, Masahiro

WEKO 1070645

Yamanaka, Masahiro

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Mikoshiba, Ryo

× Mikoshiba, Ryo

WEKO 1070646

Mikoshiba, Ryo

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Endo, Toshiaki

× Endo, Toshiaki

WEKO 1070647

Endo, Toshiaki

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Kiyono, Naoki

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WEKO 1070648

Kiyono, Naoki

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Hagiwara, Yusuke

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WEKO 1070649

Hagiwara, Yusuke

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Kodama, Hiroaki

× Kodama, Hiroaki

WEKO 1070650

Kodama, Hiroaki

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Matsuo, Shinobu

× Matsuo, Shinobu

WEKO 1070651

Matsuo, Shinobu

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Takami, Yasuhiro

× Takami, Yasuhiro

WEKO 1070652

Takami, Yasuhiro

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Sato, Toyoto

× Sato, Toyoto

WEKO 1070653

Sato, Toyoto

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Shin-ichi, Orimo

× Shin-ichi, Orimo

WEKO 1070654

Shin-ichi, Orimo

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Masayuki, Naito

× Masayuki, Naito

WEKO 1070655

en Masayuki, Naito

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Satoshi, Kodaira

× Satoshi, Kodaira

WEKO 1070656

en Satoshi, Kodaira

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Ryo, Ogawara

× Ryo, Ogawara

WEKO 1070657

en Ryo, Ogawara

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Kenji, Tobita

× Kenji, Tobita

WEKO 1070658

en Kenji, Tobita

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Yoji, Someya

× Yoji, Someya

WEKO 1070659

en Yoji, Someya

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Tamon, Kusumoto

× Tamon, Kusumoto

WEKO 1070660

en Tamon, Kusumoto

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Hiroki, Kusano

× Hiroki, Kusano

WEKO 1070661

en Hiroki, Kusano

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Hisashi, Kitamura

× Hisashi, Kitamura

WEKO 1070662

en Hisashi, Kitamura

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Masamune, Koike

× Masamune, Koike

WEKO 1070663

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Yukio, Uchihori

× Yukio, Uchihori

WEKO 1070664

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抄録
内容記述タイプ Abstract
内容記述 Geant4 Monte Carlo simulations were carried out to investigate the possible shielding materials of aluminum, polyethylene, hydrides, complex hydrides and composite materials for radiation protection in spacecraft by considering two physical parameters, stopping power and fragmentation cross section. The dose reduction with shielding materials was investigated for Fe ions with energies of 500 MeV/n, 1 GeV/n and 2 GeV/n which are around the peak of the GCR energy spectrum. Fe ions easily stop in materials such as polyethylene and hydrides as opposed to materials such as aluminum and complex hydrides including high Z metals with contain little or no hydrogen. Attenuation of the primary particles in the shielding and fragmentation into more lightly charged and therefore more penetrating secondary particles are competing factors: attenuation acts to reduce the dose behind shielding while fragmentation increases it. Among hydrogenous materials, 6Li10BH4 was one of the more effective shielding materials as a function of mass providing a 20% greater dose reduction compared to polyethylene. Composite materials such as carbon fiber reinforced plastic and SiC composite plastic offer 1.9 times the dose reduction compared to aluminum as well as high mechanical strength. Composite materials have been found to be promising for spacecraft shielding, where both mass and volume are constrained.
書誌情報 Life Sciences in Space Research

巻 26, p. 69-76, 発行日 2020-08
出版者
出版者 Elsevier Ltd.
ISSN
収録物識別子タイプ ISSN
収録物識別子 2214-5524
DOI
識別子タイプ DOI
関連識別子 10.1016/j.lssr.2020.05.001
関連サイト
識別子タイプ DOI
関連識別子 https://doi.org/10.1016/j.lssr.2020.05.001
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