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Measurement of a Linear Energy Transfer Distribution with Antioxidant Doped CR-39 Correcting for the Dip Angle Dependence of Track Formation Sensitivity
https://repo.qst.go.jp/records/45386
https://repo.qst.go.jp/records/45386898800cb-ba7e-4e35-bc25-7bc91a2f6393
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-01-05 | |||||
タイトル | ||||||
タイトル | Measurement of a Linear Energy Transfer Distribution with Antioxidant Doped CR-39 Correcting for the Dip Angle Dependence of Track Formation Sensitivity | |||||
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 |
Tawara, Hiroko
× Tawara, Hiroko× Masukawa, Mitsuyo× Nagamatsu, Aiko× Yasuda, Nakahiro× et.al× 俵 裕子× 益川 充代× 安田 仲宏 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Antioxidant doped CR-39 detectors were loaded onto the STS-95 space shuttle mission (altitude: 574 km; inclination: 28.45 degree; flight duration: 8.9 days) for measuring the linear energy transfer (LET) distribution above 10 keV/um for space radiation dosimetry. It is known that the track formation sensitivity of antioxidant doped CR-39 detectors depends on the dip angle of the incident particle. We investigated this dip angle dependence for a wide range of LET values and dip angles. The track formation sensitivities at lower dip angles were obviously decreased in the LET region below 100 keV/um. We introduced minimum-cutoff dip angles in order to correct for such dip-angle dependence. The LET distribution of the STS-95 mission was obtained from the measurements of etch pits having dip angles larger than the minimum-cutoff dip angles. This new correction method increased the absorbed dose and dose equivalent above 10 keV/um by 54 and 28%, respectively. | |||||
書誌情報 |
Japanese Journal of Applied Physics 巻 47, 号 9 Issue 1, p. 7324-7327, 発行日 2008-09 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0021-4922 |