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Role of ion impact ionization cross sections in radiation biology using swift highly charged ion beams
https://repo.qst.go.jp/records/72924
https://repo.qst.go.jp/records/7292483c9713f-6bfd-4a21-95de-33cad6759dc8
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-09-11 | |||||
| タイトル | ||||||
| タイトル | Role of ion impact ionization cross sections in radiation biology using swift highly charged ion beams | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
森林, 健悟
× 森林, 健悟× 森林 健悟 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | To understand the reason for higher RBE of highly charged ions, we study the radial dose simulations. During irradiation by swift highly charged ions, many molecules are ionized along this ion path, and strong electric field is formed by the charges of the molecular ions. We have found that this electric field is approximately proportional to incident ion impact ionization cross sections. Therefore, this electric field provides a longer-range force than that from a point charge. This means that slow secondary electrons are easily to be trapped by this longer-range force. Further, we have found the function of the number of secondary electrons escaping this electric field as a function of the cross sections. The secondary electrons trapped by this electric field collide with molecules again and again during their long stay in this region. This increases energy deposition and produces a high dosage. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 19th International Conference: Physics of Highly Charged Ion | |||||
| 発表年月日 | ||||||
| 日付 | 2018-09-06 | |||||
| 日付タイプ | Issued | |||||
