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Effect of general ion recombination on dose measurement for high dose rate carbon-ion scanning beam
https://repo.qst.go.jp/records/79196
https://repo.qst.go.jp/records/79196c027d62e-37f4-4a3c-b36b-189be7a059b6
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-03-04 | |||||
| タイトル | ||||||
| タイトル | Effect of general ion recombination on dose measurement for high dose rate carbon-ion scanning beam | |||||
| 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 |
Sung-Hyun, Lee
× Sung-Hyun, Lee× Tansho, Ryohei× Mizushima, Kota× Furukawa, Takuji× Hara, Yousuke× Saraya, Yuichi× Saotome, Naoya× Shirai, Toshiyuki× Sung-Hyun, Lee× Ryohei, Tansho× Kota, Mizushima× Takuji, Furukawa× Yousuke, Hara× Yuichi, Saraya× Naoya, Saotome× Toshiyuki, Shirai |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We confirmed the effect of ion recombination using a parallel-plate ionization chamber: dose monitor for clinical use and the Advanced Markus chamber. A 290 MeV/u carbon-ion beam was irradiated using the continuous spot-scanning method in a field size of 5 cm by 5 cm with 2 mm spacing. We tested three beam intensities (1.35×10^8, 2.69×10^9, and 4.03×10^9 particle per second (pps)) at two linear energy transfers (12 keV/μm and 200 keV/μm). The charge (Q) was measured by changing the voltage of the Advanced Markus chamber and that of the dose monitor. Then, Boag’s method was used to calculate the saturated charge (Qsat ). For the Advanced Markus chamber, 300 V is a sufficient potential to collect charge. For the dose monitor, Qsat/Q at 2500 V was 1.024 for 4.03×10^9 pps, indicating that the general recombination correction cannot be ignored when high dose rate treatment is performed using a carbon-ion scanning beam. | |||||
| 書誌情報 |
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 巻 468, p. 14-17, 発行日 2020-04 |
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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 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.nimb.2020.02.007 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.sciencedirect.com/science/article/pii/S0168583X20300586?via%3Dihub | |||||
