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Experimental study on the beam characteristics using an amplitude modulation wobbler system for heavy-ion radiotherapy
https://repo.qst.go.jp/records/68291
https://repo.qst.go.jp/records/68291075f25ed-b6fa-43f8-bdce-63758a51f0ae
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2005-12-19 | |||||
| タイトル | ||||||
| タイトル | Experimental study on the beam characteristics using an amplitude modulation wobbler system for heavy-ion radiotherapy | |||||
| 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 |
Yonai, Shunsuke
× Yonai, Shunsuke× et.al× 米内 俊祐 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In the Heavy Ion Medical Accelerator in Chiba (HIMAC) at the National Institute of Radiological Sciences (NIRS), over 2000 patients have been treated with carbon beams and good results have been yielded. However, we must overcome a problem of the construction cost to popularize the heavy-ion radiotherapy. Therefore, we are proceeding with studies to realize more compact facilities for the radiotherapy. In these studies, the length of an irradiation port is required to scale down to half of that in HIMAC. However, the wobbler-scatterer system which is used in HIMAC at present, can not be directly applicable because the residual range would be severely reduced by thicker scatterer required for the short irradiation port. Therefore, an amplitude modulation wobbler system with a thin scatterer has been studied to overcome the problem. Especially, we have proposed the spiral-wobbler system which produces circular irradiation fields up to 22 cm in diameter using a fixed beam size of ~25 mm. This system also has advantages of its simple design and high efficiency of beam use as compared with the conventional wobbler-scatterer system. In this meeting, we report about the beam characteristics by the spiral-wobber system with experimental studies. Since the two orthogonally-bending magnets of the system are driven by independent power supplies with programmable waveforms, the system can flexibly deliver various wobbling patterns and the possibilities of other wobbling methods are also discussed. |
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| 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 | Particle Therapy Co-Operative Group,PTCOG43 | |||||
| 発表年月日 | ||||||
| 日付 | 2005-12-14 | |||||
| 日付タイプ | Issued | |||||
