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超伝導回転ガントリーのビームコミッショニング
https://repo.qst.go.jp/records/72089
https://repo.qst.go.jp/records/720895b392bfe-ea49-4fef-afe0-26a04056e101
Item type | 会議発表用資料 / Presentation(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2016-12-12 | |||||
タイトル | ||||||
タイトル | 超伝導回転ガントリーのビームコミッショニング | |||||
言語 | ||||||
言語 | jpn | |||||
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 |
原, 洋介
× 原, 洋介× 原 洋介 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | INTRODUCTION Since 2011, a three-dimensional (3D) scanning irradiation system has been utilized for treatment at the National Institute of Radiological Sciences-Heavy Ion Medical Accelerator in Chiba (NIRS-HIMAC). After the construction of fixed beam lines, we started design and construction of a superconducting rotating gantry. The construction of rotating gantry is completed in September 2015. Currently, beam commissioning for treatment is carried out. In this presentation, we will report the present status of the beam commissioning of our gantry. Scanning correction for BM field error Our scanning magnets are located upstream of final bending magnets (BM7-10). Thus, it is necessary to correct the position dependent field error from BM7-10. Based on measured distortion ,we performed feedforward correction in current setting calculation of scanning magnets. As a result, scanned beam position are successfully corrected as same level with that in fixed beam line. DEPTH SCAN TECHNIQUE To suppress beam spread due to the multiple scattering and the nuclear reaction, we then developed a full energy scanning method. In this method, we prepare more than 200 energies ranging from 55.6-430 MeV/u, corresponding to the water-equivalent residual ranges of about 1-300 mm with 1 or 2 mm intervals behind the instruments for 3D scanning. To verify the beam delivery system for the full energy scanning, we performed several fundamental beam tests. |
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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 | 平成28年度QST研究交流会/平成28年度量子ビーム科学研究交流会 | |||||
発表年月日 | ||||||
日付 | 2016-12-07 | |||||
日付タイプ | Issued |