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重离子治癌装置4 MeV/u IH型漂移管直线注入器的动力学设计

杜衡 原有进 殷学军 王科栋 李钟汕 李小妮 王志军 曲国峰 许小伟 陆元荣 杨建成 夏佳文

杜衡, 原有进, 殷学军, 王科栋, 李钟汕, 李小妮, 王志军, 曲国峰, 许小伟, 陆元荣, 杨建成, 夏佳文. 重离子治癌装置4 MeV/u IH型漂移管直线注入器的动力学设计[J]. 原子核物理评论, 2018, 35(1): 34-39. doi: 10.11804/NuclPhysRev.35.01.034
引用本文: 杜衡, 原有进, 殷学军, 王科栋, 李钟汕, 李小妮, 王志军, 曲国峰, 许小伟, 陆元荣, 杨建成, 夏佳文. 重离子治癌装置4 MeV/u IH型漂移管直线注入器的动力学设计[J]. 原子核物理评论, 2018, 35(1): 34-39. doi: 10.11804/NuclPhysRev.35.01.034
DU Heng, YUAN Youjin, YIN Xuejun, WANG Kedong, LI Zhongshan, LI Xiaoni, WANG Zhijun, QU Guofeng, XU Xiaowei, LU Yuanrong, YANG Jiancheng, XIA Jiawen. Design of a 4 MeV/u IH-DTL Injector for Cancer Therapy[J]. Nuclear Physics Review, 2018, 35(1): 34-39. doi: 10.11804/NuclPhysRev.35.01.034
Citation: DU Heng, YUAN Youjin, YIN Xuejun, WANG Kedong, LI Zhongshan, LI Xiaoni, WANG Zhijun, QU Guofeng, XU Xiaowei, LU Yuanrong, YANG Jiancheng, XIA Jiawen. Design of a 4 MeV/u IH-DTL Injector for Cancer Therapy[J]. Nuclear Physics Review, 2018, 35(1): 34-39. doi: 10.11804/NuclPhysRev.35.01.034

重离子治癌装置4 MeV/u IH型漂移管直线注入器的动力学设计

doi: 10.11804/NuclPhysRev.35.01.034
基金项目: 国家自然科学基金资助项目(11375243,11405237);广东省引进创新创业团队计划资助项目(2016ZT06G73)
详细信息
    作者简介:

    杜衡(1988-),男,河南荥阳人,博士研究生,从事加速器物理研究;E-mail:duheng@impcas.ac.cn

    通讯作者: 殷学军,E-mail:yinxj@impcas.ac.cn。
  • 中图分类号: O571.53

Design of a 4 MeV/u IH-DTL Injector for Cancer Therapy

Funds: National Natural Science Foundation of China (11375243, 11405237); Guangdong Innovative and Entrepreneurial Research Team Program (2016ZT06G373)
  • 摘要: 基于KONUS束流动力学理论,完成了一台工作频率为162.5 MHz、占空比为1%的交叉指型漂移管直线注入器(IH-DTL)的动力学设计。该IH-DTL内置两套三组合四极透镜,共有41个加速单元,可为同步加速器提供流强400 eμA、能量4 MeV/u的C4+束流。在动力学设计过程中着重对每个加速间隙的同步能量偏差、注入相位和间隙电压等参数进行优化,使得该IH-DTL的横向归一化RMS接收度达到0.24 πmm·mrad,且横纵向归一化发射度增长小于10%,有利于提高同步环的注入效率。然后根据动力学设计的结构参数进行IH-DTL的高频仿真计算,将得到的三维电磁场分布导入PIC粒子跟踪程序中进行束流动力学模拟。动力学模拟结果显示,束流在IH-DTL出口的横向自然发射度小于13 πmm·mrad,达到了同步环的注入要求,而且在7%的垂直二极场分量下,束流中心的横向偏移在±0.5 mm以内,整体的束流传输效率高于99%。


    An interdigital H-mode drift tube linac (IH-DTL) with KONUS beam dynamic has been designed, which operation frequency was chosen 162.5 MHz. This IH-DTL consists of 41 accelerating cells and two quadrupole magnets triplets, can provide the C4+ with the current of 400 eμA and energy of 4 MeV/u for the synchrotron. In the beam dynamic design, the synchronous particle energy, inject RF phase and the acceleration voltage of each gap are optimized carefully to make the transverse normalized RMS acceptance of the IH-DTL to be 0.24 πmm·mrad and the beam emittance growth small than 10%. Then the RF structure was designed and the 3D electromagnetic field was imported into the PIC particle tracking code for the beam dynamic simulation. The transverse beam emittance at the exit of the IH-DTL is small than 13πmm·mrad which meets the injection requirement of the synchrotron. What is more, under the 7% vertical dipole fields component, the offset between the beam center and the drift tube's axis is ±0.5 mm at most. The transmission efficiency of the IH-DTL is higher than 99% for the whole beam in the acceptance.
  • [1] XIAO Guoqing, ZHANG Hong, LI Qiang, et al. Nuclear Physics Review, 2007, 24(2):85. (in Chinese) (肖国青, 张红, 李强, 等. 原子核物理评论, 2007, 24(2):85.)
    [2] XIAO Guoqing, ZHANG Hong, LI Qiang. Chinese Physics C (HEP & NP), 2008, 32(2):8.
    [3] MO D, LIU J D, DUAN J L, et al. Nucl Instr Meth A, 2014, 333:58.
    [4] YANG Jiancheng, SHI Jian, CHAI Weiping, et al. Nucl Instr Meth A, 2014, 756:19.
    [5] WANG Bing, HAO Huanfeng, VOROZHTSOV S B, et al. Physics of Particles and Nuclei Letters, 2012, 9(3):288.
    [6] IWATA Y, YAMADA S, MURAKAMI T, et al. Nucl Instr Meth A, 2007, 572(3):1007.
    [7] SCHLITT B, CLEMENTE G, KLEFFNER C M, et al. Linac Commissioning at The Italian Hadromtherapy Center CNAO[C]. Proceedings of IPAC'10, Kyoto, Japan, MOPEA003.
    [8] RATZINGER U. Proceedings of the 1991 Particle Accelerator Conference, San Francisco, CA, New York, 1991:567.
    [9] WANGLER T P, Principles of RF linear Accelerators[M].2ed. New York:John Wiley & Sons Inc, 1998:197.
    [10] RATZINGER U. Nucl Instr Meth A, 2001, 464:636.
    [11] SCHLITT B. Commissioning and Operation of The Injector Linacs for Hit and Cnao[C]. Proceedings of LINAC08, Victoria, BC, Canada, 2008:720.
    [12] TIEDE R, CLEMENTE G, PODLECH H, et al. LORASR code Development[C]. Proceedings of the 2006 EPAC, Edinburgh, Great Britain, 2006:2194.
    [13] BATYGIN Y K. Nucl Instr Meth A, 2005, 539:455.
    [14] http://www.cobham.com/about-cobham/aerospace-andsecurity/about-us/antenna-systems/kidlington/products/opera-3d.aspx. Opera-3d electromagnetic design in three dimensions, 2011
    [15] Computer Simulation Technology (CST), Micro Wave Studio https://www.cst.com/.
    [16] BROERE J, KUGLER H, VRETENAR M, et al. High Power Conditioning of the 202 MHZ ih Tank 2 at the CERN LINAC3[C]. Proceedings of XIX International Linear Accelerator Conference, Chicago, Illinois, USA, 1998:771.
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出版历程
  • 收稿日期:  2017-07-19
  • 修回日期:  2017-09-20
  • 刊出日期:  2018-03-20

重离子治癌装置4 MeV/u IH型漂移管直线注入器的动力学设计

doi: 10.11804/NuclPhysRev.35.01.034
    基金项目:  国家自然科学基金资助项目(11375243,11405237);广东省引进创新创业团队计划资助项目(2016ZT06G73)
    作者简介:

    杜衡(1988-),男,河南荥阳人,博士研究生,从事加速器物理研究;E-mail:duheng@impcas.ac.cn

    通讯作者: 殷学军,E-mail:yinxj@impcas.ac.cn。
  • 中图分类号: O571.53

摘要: 基于KONUS束流动力学理论,完成了一台工作频率为162.5 MHz、占空比为1%的交叉指型漂移管直线注入器(IH-DTL)的动力学设计。该IH-DTL内置两套三组合四极透镜,共有41个加速单元,可为同步加速器提供流强400 eμA、能量4 MeV/u的C4+束流。在动力学设计过程中着重对每个加速间隙的同步能量偏差、注入相位和间隙电压等参数进行优化,使得该IH-DTL的横向归一化RMS接收度达到0.24 πmm·mrad,且横纵向归一化发射度增长小于10%,有利于提高同步环的注入效率。然后根据动力学设计的结构参数进行IH-DTL的高频仿真计算,将得到的三维电磁场分布导入PIC粒子跟踪程序中进行束流动力学模拟。动力学模拟结果显示,束流在IH-DTL出口的横向自然发射度小于13 πmm·mrad,达到了同步环的注入要求,而且在7%的垂直二极场分量下,束流中心的横向偏移在±0.5 mm以内,整体的束流传输效率高于99%。


An interdigital H-mode drift tube linac (IH-DTL) with KONUS beam dynamic has been designed, which operation frequency was chosen 162.5 MHz. This IH-DTL consists of 41 accelerating cells and two quadrupole magnets triplets, can provide the C4+ with the current of 400 eμA and energy of 4 MeV/u for the synchrotron. In the beam dynamic design, the synchronous particle energy, inject RF phase and the acceleration voltage of each gap are optimized carefully to make the transverse normalized RMS acceptance of the IH-DTL to be 0.24 πmm·mrad and the beam emittance growth small than 10%. Then the RF structure was designed and the 3D electromagnetic field was imported into the PIC particle tracking code for the beam dynamic simulation. The transverse beam emittance at the exit of the IH-DTL is small than 13πmm·mrad which meets the injection requirement of the synchrotron. What is more, under the 7% vertical dipole fields component, the offset between the beam center and the drift tube's axis is ±0.5 mm at most. The transmission efficiency of the IH-DTL is higher than 99% for the whole beam in the acceptance.

English Abstract

杜衡, 原有进, 殷学军, 王科栋, 李钟汕, 李小妮, 王志军, 曲国峰, 许小伟, 陆元荣, 杨建成, 夏佳文. 重离子治癌装置4 MeV/u IH型漂移管直线注入器的动力学设计[J]. 原子核物理评论, 2018, 35(1): 34-39. doi: 10.11804/NuclPhysRev.35.01.034
引用本文: 杜衡, 原有进, 殷学军, 王科栋, 李钟汕, 李小妮, 王志军, 曲国峰, 许小伟, 陆元荣, 杨建成, 夏佳文. 重离子治癌装置4 MeV/u IH型漂移管直线注入器的动力学设计[J]. 原子核物理评论, 2018, 35(1): 34-39. doi: 10.11804/NuclPhysRev.35.01.034
DU Heng, YUAN Youjin, YIN Xuejun, WANG Kedong, LI Zhongshan, LI Xiaoni, WANG Zhijun, QU Guofeng, XU Xiaowei, LU Yuanrong, YANG Jiancheng, XIA Jiawen. Design of a 4 MeV/u IH-DTL Injector for Cancer Therapy[J]. Nuclear Physics Review, 2018, 35(1): 34-39. doi: 10.11804/NuclPhysRev.35.01.034
Citation: DU Heng, YUAN Youjin, YIN Xuejun, WANG Kedong, LI Zhongshan, LI Xiaoni, WANG Zhijun, QU Guofeng, XU Xiaowei, LU Yuanrong, YANG Jiancheng, XIA Jiawen. Design of a 4 MeV/u IH-DTL Injector for Cancer Therapy[J]. Nuclear Physics Review, 2018, 35(1): 34-39. doi: 10.11804/NuclPhysRev.35.01.034
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