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Measurement of the secondary neutron dose distribution from the LET spectrum of recoils using the CR-39 plastic nuclear track detector in 10 MV X-ray medical radiation fields
https://repo.qst.go.jp/records/47084
https://repo.qst.go.jp/records/470848a1e4065-400b-4928-82be-ce7419a497e1
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2015-04-07 | |||||
| タイトル | ||||||
| タイトル | Measurement of the secondary neutron dose distribution from the LET spectrum of recoils using the CR-39 plastic nuclear track detector in 10 MV X-ray medical radiation fields | |||||
| 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 |
Fujibuchi, Toshioh
× Fujibuchi, Toshioh× Kodaira, Satoshi× Sawaguchi, Fumiya× Abe, Yasuyuki× Obara, Satoshi× Yamaguchi, Masae× Kawashima, Hajime× Kitamura, Hisashi× Kurano, Mieko× Uchihori, Yukio× Yasuda, Nakahiro× Koguchi, Yasuhiro× Nakajima, Masaru× Kitamura, Nozomi× Sato, Tomoharu× 小平 聡× 澤口 文哉× 阿部 泰之× 小原 哲× 山口 雅絵× 川嶋 元× 北村 尚× 蔵野 美恵子× 内堀 幸夫× 安田 仲宏× 小口 靖弘 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We measured the recoil charged particles from secondary neutrons produced by the photonuclear reaction in a water phantom from a 10-MV photon beam from medical linacs. The absorbed dose and the dose equivalent were evaluated from the linear energy transfer (LET) spectrum of recoils using the CR-39 plastic nuclear track detector (PNTD) based on well-established methods in the field of space radiation dosimetry. The contributions and spatial distributions of these in the phantom on nominal photon exposures were verified as the secondary neutron dose and neutron dose equivalent. The neutron dose equivalent normalized to the photon-absorbed dose was 0.261 mSv/100 MU at source to chamber distance 90 cm. The dose equivalent at the surface gave the highest value, and was attenuated to less than 10% at 5 cm from the surface. The dose contribution of the high LET component of P100 keV/lm increased with the depth in water, resulting in an increase of the quality factor. The CR-39 PNTD is a powerful tool that can be used to systematically measure secondary neutron dose distributions in a water phantom from an in-field to out-of-field high-intensity photon beam. |
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| 書誌情報 |
Nuclear Instruments and Methods in Physics Research B 巻 349, p. 239-245, 発行日 2015-04 |
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| 出版者 | ||||||
| 出版者 | ELSEVIER | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0168-583X | |||||
| PubMed番号 | ||||||
| 識別子タイプ | PMID | |||||
| 関連識別子 | PubMed-ID | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.nimb.2015.03.006 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.sciencedirect.com/science/article/pii/S0168583X15002062 | |||||
| 関連名称 | http://www.sciencedirect.com/science/article/pii/S0168583X15002062 | |||||
