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Silica-nanocapsule-doped CR-39 for Fluorescence detection of X-rays
https://tokushima-u.repo.nii.ac.jp/records/2012751
https://tokushima-u.repo.nii.ac.jp/records/20127517d52e942-51d0-4321-bf05-77bf0f767e95
| 名前 / ファイル | ライセンス | アクション |
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phpro_80_90.pdf (590 KB)
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| Item type | 文献 / Documents(1) | |||||||||||||||||||||
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| 公開日 | 2025-07-23 | |||||||||||||||||||||
| アクセス権 | ||||||||||||||||||||||
| アクセス権 | open access | |||||||||||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||||||||||
| 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 | |||||||||||||||||||||
| 出版社版DOI | ||||||||||||||||||||||
| 関連識別子 | https://doi.org/10.1016/j.phpro.2015.11.100 | |||||||||||||||||||||
| 関連名称 | 10.1016/j.phpro.2015.11.100 | |||||||||||||||||||||
| 出版タイプ | ||||||||||||||||||||||
| 出版タイプ | VoR | |||||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||||||||
| タイトル | ||||||||||||||||||||||
| タイトル | Silica-nanocapsule-doped CR-39 for Fluorescence detection of X-rays | |||||||||||||||||||||
| 著者 |
三好, 弘一
× 三好, 弘一
WEKO
1518
× Kida, Fumio
× Hase, Hitoshi
× 土屋, 浩一郎
WEKO
1567
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| 抄録 | ||||||||||||||||||||||
| 内容記述 | X-rays (30 kV and 15 mA) generated using an X-ray diffractometer (Rigaku MiniFlex II) were detected as a fluorescence image using the UV-absorber-doped CR-39 when the X-ray dose exceeded 1 Gy. The fluorescence image was easily obtained using an FLA-9000 image analyzer. The excitation wavelength dependence of fluorescence intensity was observed, and the optimal excitation wavelength in the imager for obtaining the highest fluorescence intensity was 555 nm. X-ray irradiation of the UV-absorber-doped CR-39 generates fluorescence centers by charge separation. Therefore, to stabilize the fluorescence image, we attempted to prevent the recombination of the electrons and positive holes generated by X-ray irradiation by doping methylviologen MV2+ encapsulated in silica nanocapsules into CR-39 during its synthesis. It was found that the fluorescence intensity of the image remained constant for almost 120 min when more than 0.5 g of MV2+ encapsulated in nanocapsules were doped in CR-39. A new solid-state fluorescence detector for X-rays was thus realized using CR-39 doped with MV2+ encapsulated in silica nanocapsules. | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 主題 | CR-39 | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 主題 | optically stimulated luminescence | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 主題 | UV dopant | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 主題 | silica nanocapsules | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 主題 | methylviologen | |||||||||||||||||||||
| 書誌情報 |
en : Physics Procedia 巻 80, p. 90-93, 発行日 2015-12-12 |
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| 収録物ID | ||||||||||||||||||||||
| 収録物識別子タイプ | EISSN | |||||||||||||||||||||
| 収録物識別子 | 18753892 | |||||||||||||||||||||
| 出版者 | ||||||||||||||||||||||
| 出版者 | Elsevier | |||||||||||||||||||||
| 権利情報 | ||||||||||||||||||||||
| 権利情報 | © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). | |||||||||||||||||||||
| EID | ||||||||||||||||||||||
| 識別子 | 305809 | |||||||||||||||||||||
| 言語 | ||||||||||||||||||||||
| 言語 | eng | |||||||||||||||||||||
