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PHITS calculation of radiation field in HIMAC BIO
https://repo.qst.go.jp/records/64309
https://repo.qst.go.jp/records/643096022a053-1f6c-4987-b4ea-bef7de539aea
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2011-09-13 | |||||
| タイトル | ||||||
| タイトル | PHITS calculation of radiation field in HIMAC BIO | |||||
| 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 |
Ploc, Ondrej
× Ploc, Ondrej× Uchihori, Yukio× Kitamura, Hisashi× Sihver, Lembit× Ｐｌｏｃ Ｏｎｄｒｅｊ× 内堀 幸夫× 北村 尚× Ｓｉｈｖｅｒ Ｌｅｍｂｉｔ |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The Heavy Ion Medical Accelerator in Chiba (HIMAC), at the National Institute of Radiological Sciences, is not only an excellent cancer-treatment facility but also a facility to perform experiments related to both radiation therapy and space radiation protection. HIMAC BIO is an irradiation room used for experiments related to biology and physics, frequently for calibration of detectors used onboard the International Space Station. To be able to evaluate these experiments, it is essential to know the experimental setup, as well as the beam characteristics, in details. Both narrow and broad parallel heavy ion beams (up to 10 cm), with flat circular profile at the isocenter, can be provided in HIMAC BIO. Such beams are obtained by using beam-line components, similar to those used during radiation therapy. However, these components decrease the energies of the primary beams and are sources of secondary particles. To be able to draw correct conclusions from the experimental results, and to be able to compare the measurements with simulations, it is crucial to know the real energy of the primary ions and the beam composition at the location of the biological samples and the physical detectors. The energies of the primary ions are calculated from Bragg curve measurement with a Markus chamber before each experiment. However, the exact beam composition including the fluence and energies of the secondary fragments and neutrons are usually unknown. The purpose of this paper is to provide detailed information about all the components in the beam line at the HIMAC BIO room to be able to perform particle and heavy ion transport simulations of the beam characteristics. The main sources of secondary particles have been investigated, and the beam composition was calculated by the Monte Carlo code PHITS (Particle and Heavy Ion Transport code System) and compared with measurements using a silicon detector (Liulin) exposed to various monoenergetic and Spread Out Bragg Peak (SOBP) heavy ion beams. We propose a new method of silicon detector calibration using only one heavy ion beam. | |||||
| 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 | 16th WRMISS | |||||
| 発表年月日 | ||||||
| 日付 | 2011-09-08 | |||||
| 日付タイプ | Issued | |||||
