RF knock-out extraction in HITFiL
A compact facility for cancer therapy has been designed and is presently under construction. A slow beam extraction system using the RF-Knock Out method and 3rd-order resonance is adopted in the synchrotron of this facility. Eight sextupoles are used, four of them are for correcting the chromaticity...
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| Published in | Chinese physics C Vol. 36; no. 10; pp. 1004 - 1008 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.10.2012
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| Subjects | |
| Online Access | Get full text |
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| Abstract | A compact facility for cancer therapy has been designed and is presently under construction. A slow beam extraction system using the RF-Knock Out method and 3rd-order resonance is adopted in the synchrotron of this facility. Eight sextupoles are used, four of them are for correcting the chromaticity and the rest for driving the 3rd-order resonance. In order to save the aperture of vacuum chamber, a 3-magnet bump is adopted during the extraction process. The extraction phase space map and the last 3 turns’ particle trajectory before extraction are given. The matching betatron functions with HEBT （high energy beam transport） are also presented. |
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| AbstractList | A compact facility for cancer therapy has been designed and is presently under construction. A slow beam extraction system using the RF-Knock Out method and 3rd-order resonance is adopted in the synchrotron of this facility. Eight sextupoles are used, four of them are for correcting the chromaticity and the rest for driving the 3rd-order resonance. In order to save the aperture of vacuum chamber, a 3-magnet bump is adopted during the extraction process. The extraction phase space map and the last 3 turns' particle trajectory before extraction are given. The matching betatron functions with HEBT (high energy beam transport) are also presented. A compact facility for cancer therapy has been designed and is presently under construction. A slow beam extraction system using the RF-Knock Out method and 3rd-order resonance is adopted in the synchrotron of this facility. Eight sextupoles are used, four of them are for correcting the chromaticity and the rest for driving the 3rd-order resonance. In order to save the aperture of vacuum chamber, a 3-magnet bump is adopted during the extraction process. The extraction phase space map and the last 3 turns’ particle trajectory before extraction are given. The matching betatron functions with HEBT （high energy beam transport） are also presented. |
| Author | 石健 杨建成 夏佳文 原有进 李杰 柴伟平 宋明涛 张小虎 |
| AuthorAffiliation | Institution of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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| Cites_doi | 10.1016/S0168-9002(02)00895-1 10.1016/j.nimb.2005.06.083 10.1016/j.semradonc.2006.04.008 10.1016/S0168-9002(02)00475-8 10.1016/S0168-9002(02)01318-9 |
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| Notes | RF-knock out slow extraction; 3rd order resonance; cancer therapy A compact facility for cancer therapy has been designed and is presently under construction. A slow beam extraction system using the RF-Knock Out method and 3rd-order resonance is adopted in the synchrotron of this facility. Eight sextupoles are used, four of them are for correcting the chromaticity and the rest for driving the 3rd-order resonance. In order to save the aperture of vacuum chamber, a 3-magnet bump is adopted during the extraction process. The extraction phase space map and the last 3 turns’ particle trajectory before extraction are given. The matching betatron functions with HEBT （high energy beam transport） are also presented. 11-5641/O4 SHI Jian 1,2 YANG Jian-Cheng 1;1） XIA Jia-Wen 1 YUAN You-Jin 1 LI Jie 1,2 CHAI Wei-Ping 1,2 SONG Ming-Tao 1 ZHANG Xiao-Hu 1,2 1 Institution of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
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| References | 1 2 Bryant P (5) 1999 MAO R S (11) 2011 Bryant P J (12) 7 YUAN You-Jin (3) 2005; 17 8 Guignard G (6) 9 Hardt W (4) 1981 10 |
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| Snippet | A compact facility for cancer therapy has been designed and is presently under construction. A slow beam extraction system using the RF-Knock Out method and... |
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| SubjectTerms | Beams (radiation) Betatrons Extraction Particle trajectories Rest Synchrotrons Transport Vacuum chambers 光束传输 基因敲除 引出系统 提取过程 电子回旋 相空间图 颗粒运动轨迹 |
| Title | RF knock-out extraction in HITFiL |
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