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Enhanced bulk-etch-rate of gamma irradiated PADC detector expressed by the radiation chemical yield of hydroxyl group
https://repo.qst.go.jp/records/2002697
https://repo.qst.go.jp/records/200269700b34cd0-8743-4faf-8dec-28c27dacd2f4
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||||||||||||
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| 公開日 | 2026-02-05 | |||||||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||||||
| タイトル | Enhanced bulk-etch-rate of gamma irradiated PADC detector expressed by the radiation chemical yield of hydroxyl group | |||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||
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| 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 | |||||||||||||||||||||||||||
| 著者 |
Reo Yamada
× Reo Yamada
× Atsushi Kimoto
× Hayato Seiichi
× Shunto Sadamitsu
× Daisuke Kohinata
× Masato Kanasaki
× Kusumoto Tamon
× Kitamura Hisashi
× Kodaira Satoshi
× Sachiko Tojo
× Tomoya Yamauchi
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| 抄録 | ||||||||||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||||||||||
| 内容記述 | Enhanced bulk-etch-rate of PADC (polyallyl diglycol carbonate) detectors exposed to gamma rays has been found to be described well as an exponential function of the product of the radiation chemical yield of hydroxyl group (GOH) and the adsorbed dose (D) at different dose-rates between 0.41 and 8.14 Gy/s. The examined absorbed doses were ranging from 30 to 100 kGy, comparable with the local dose in proton tracks. By matching the bulk-etch-rates and the GOH values obtained under identical conditions on dose-rate, the following equation was derived for the relative bulk-etch-rate, Virra/Vb = exp(y･GOH･D), where, Virra and Vb denote the bulk-etch-rates after and before gamma irradiations, respectively, and y is an experimentally obtained constant in a unit of kg/mol, with a value of y = 5.98. In this relation, significant dose-rate dependence is explained as the dose-rate dependence of the GOH value. This means that the radiation damage that increases the bulk-etch-rate is the hydroxyl group itself, and y appears as a constant specific to PADC which relates the damage to bulk-etch-rate. Here, y is termed the “etching coefficient ". | |||||||||||||||||||||||||||
| 書誌情報 |
Radiation Measurements 巻 191, p. 107584, 発行日 2026-02 |
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| 出版者 | Elsevier | |||||||||||||||||||||||||||
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| 収録物識別子タイプ | ISSN | |||||||||||||||||||||||||||
| 収録物識別子 | 1879-0925 | |||||||||||||||||||||||||||
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| 識別子タイプ | DOI | |||||||||||||||||||||||||||
| 関連識別子 | 10.1016/j.radmeas.2025.107584 | |||||||||||||||||||||||||||
