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Thermal Neutron Measurements Using Thermoluminescence Phosphor Cr-doped Al2O3 and Cd Neutron Converter
https://repo.qst.go.jp/records/84324
https://repo.qst.go.jp/records/843246afb10a8-c27a-43ae-bd99-990ac32be165
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-09-29 | |||||
| タイトル | ||||||
| タイトル | Thermal Neutron Measurements Using Thermoluminescence Phosphor Cr-doped Al2O3 and Cd Neutron Converter | |||||
| 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 |
Ryoken, Oh
× Ryoken, Oh× Shin, Yanagisawa× Hiroki, Tanaka× Takata, Takushi× Genichiro, Wakabayashi× Masaya, Tanaka× Natsumi, Sugioka× Yusuke, Koba× Kiyomitsu, Shinsho× Ryoken, Oh× Shin, Yanagisawa× Hiroki, Tanaka× Genichiro, Wakabayashi× Masaya, Tanaka× Natsumi, Sugioka× Yusuke, Koba× Kiyomitsu, Shinsho |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In the neutron irradiation field in boron neutron capture therapy, neutron rays and γ-rays are mixed, and it is not easy to selectively measure only neutron rays. The currently used gold activation method is expensive and not suitable for measuring the dose distribution with high spatial resolution. Therefore, there is increasing demand for a simple neutron measurement method for periodic inspections and treatment planning in boron neutron capture therapy (BNCT). Cd has a large nuclear reaction cross section solely for thermal neutrons, and converts thermal neutrons to γ-rays by the (n, γ) reaction. Therefore, in this study, we investigated a method for calculating the thermal neutron fluence by installing Cd as a neutron converter on Cr-doped Al2O3 (Al2O3:Cr), which is a thermoluminescence dosimeter, and measuring the converted γ-ray dose with the Al2O3:Cr. After a 30 min irradiation experiment using the Kyoto University research reactor, the amount of thermoluminescence (TL) increased 101-fold after installing a Cd converter compared with the case of no Cd converter. In addition, the dependence of the TL response on the irradiation time showed excellent proportionality, suggesting the possibility of selectively measuring only the thermal neutron fluence. | |||||
| 書誌情報 |
Sensors and Materials 巻 33, 号 6, p. 2129-2135, 発行日 2021-09 |
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| 出版者 | ||||||
| 出版者 | MYU | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0914-4935 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.18494/SAM.2021.3328 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.myukk.org/SM2017/article.php?ss=3328 | |||||
