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Quantitative estimation of track segment yields of water radiolysis species under heavy ions around Bragg peak energies using Geant4-DNA
https://repo.qst.go.jp/records/81682
https://repo.qst.go.jp/records/8168237257885-11b0-4414-aa69-0991e1953a6f
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-01-18 | |||||
| タイトル | ||||||
| タイトル | Quantitative estimation of track segment yields of water radiolysis species under heavy ions around Bragg peak energies using Geant4-DNA | |||||
| 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 |
Baba, Kentaro
× Baba, Kentaro× Kusumoto, Tamon× Okada, Shogo× Ogawara, Ryo× Kodaira, Satoshi× Raffy, Quentin× Barillon, Remi× Ludwig, Nicolas× Galindo, Catherine× Peaupardi, Philippe× Ishikawa, Masayori× Tamon, Kusumoto× Satoshi, Kodaira |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We evaluate the track segment yield G′ of typical water radiolysis products (eaq−, ·OH and H2O2) under heavy ions (He, C and Fe ions) using a Monte Carlo simulation code in the Geant4-DNA. Furthermore, we reproduce experimental results of ·OH of He and C ions around the Bragg peak energies (< 6 MeV/u). In the relatively high energy region (e.g., > 10 MeV/u), the simulation results using Geant4-DNA have agreed with experimental results. However, the G-values of water radiolysis species have not been properly evaluated around the Bragg peak energies, at which high ionizing density can be expected. Around the Bragg peak energy, dense continuous secondary products are generated, so that it is necessary to simulate the radical–radical reaction more accurately. To do so, we added the role of secondary products formed by irradiation. Consequently, our simulation results are in good agreement with experimental results and previous simulations not only in the high-energy region but also around the Bragg peak. Several future issues are also discussed regarding the roles of fragmentation and multi-ionization to realize more realistic simulations. | |||||
| 書誌情報 |
Scientific Reports 巻 11, p. 1524, 発行日 2021-01 |
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| 出版者 | ||||||
| 出版者 | Nature Publishing Group | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2045-2322 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1038/s41598-021-81215-6 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1038/s41598-021-81215-6 | |||||
