2020年8月
Discrimination of hydroxyl radical yields due to thermal neutrons, fast neutrons, and gamma rays in accelerator-based neutron fields
Radiation Physics and Chemistry
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- 巻
- 173
- 号
- 開始ページ
- 108889
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.radphyschem.2020.108889
© 2020 Elsevier Ltd We proposed a depth-intensity curve discrimination (DCD) method for assessing absorbed dose contributions of hydroxyl radicals (HO·) due to thermal neutrons, fast neutrons, and gamma rays in accelerator-based mixed radiation fields, that are relevant to boron neutron capture therapy (BNCT). The HO· yields of thermal neutrons, fast neutrons, and gamma-rays measured by coumarin-3-carboxylic acid solutions were discriminately evaluated using depth-intensity curves of their radiations and maximum likelihood-expectation maximization algorithm. The discrimination accuracies of the three types of radiation were 2.8%, 4.2%, and 1.0%, respectively. We demonstrated that the DCD method is appropriate to determine absorbed dose contributions of HO· in complex accelerator-based neutron fields for BNCT.
- リンク情報
- ID情報
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- DOI : 10.1016/j.radphyschem.2020.108889
- ISSN : 0969-806X
- eISSN : 1879-0895
- SCOPUS ID : 85082753854