| 毛细管准直微束过程模拟与微束品质分析 |
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| 引用本文： | 柳岸,李嘉庆,王旭飞,张杰雄,王建中,张伟,张斌,邵春林,施立群. 毛细管准直微束过程模拟与微束品质分析[J]. 强激光与粒子束, 2012, 24(1): 202-206 |
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| 作者姓名： | 柳岸 李嘉庆 王旭飞 张杰雄 王建中 张伟 张斌 邵春林 施立群 |
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| 作者单位： | 1.复旦大学 核科学与技术系, 现代物理研究所, 上海 200433; |
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| 基金项目： | 国家自然科学基金青年科学基金，上海市重点学科建设项目 |
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| 摘 要： | 利用GEANT4程序对复旦大学单粒子微束的毛细管准直过程进行了蒙特卡罗模拟。计算结果表明:当前采用的1 m孔径、1 mm长度的毛细玻璃管准直器能够引出峰值能量2.2 MeV、能量分辨130 keV、束径2.4 m的质子微束，可达到装置对微束能量与束径分辨的设计指标，从理论上明确了毛细管准直微束引出的可行性。针对影响入射目标细胞微束品质的主要因素，分析了微束品质与准直系统和入射束流各状态参数的依赖关系，为毛细管准直微束的引出与优化提供了必要的理论依据。
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| 关 键 词： | 单粒子微束 毛细管准直器 微束品质 细胞照射 |
| 收稿时间： | 2011-05-23 |
Collimation process simulation and beam quality analysis of capillary-based microbeam |
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| Liu An , Li Jiaqing , Wang Xufei , Zhang Jiexiong , Wang Jianzhong , Zhang Wei , Zhang Bin , Shao Chunlin , Shi Liqun. Collimation process simulation and beam quality analysis of capillary-based microbeam[J]. High Power Laser and Particle Beams, 2012, 24(1): 202-206 |
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| Authors: | Liu An Li Jiaqing Wang Xufei Zhang Jiexiong Wang Jianzhong Zhang Wei Zhang Bin Shao Chunlin Shi Liqun |
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| Affiliation: | 1.Institute of Modern Physics,Department of Nuclear Science and Technology,Fudan University,Shanghai 200433,China;2.Key Laboratory of Applied Ion Beam Physics,Ministry of Education,Fudan University,Shanghai 200433,China;3.Institute of Radiation Medicine,Fudan University,Shanghai 200032,China |
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| Abstract: | A GEANT4 based Monte-Carlo simulation on collimation processes of single-particle microbeam at Fudan University by capillary collimator was performed with regard to the incident beam parameters, including the divergent angle of incident beam, the incident beam energy, the misalignment angle of beam collimation and the length of collimator. As a result, a proton beam with 2.2 MeV peak energy and 130 keV FWHM which was 2.4 μm in radius, was acquired by the collimator which was 1 μm in diameter, and 1 mm in length, meeting the requirements of design. The simulation shows the possibility of acquiring microbeams in micron scale, and reveals the relationship of system design parameters and incident beam parameters with capillary-based microbeam, which determines the quality of microbeam and as it irradiates the cells. |
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| Keywords: | single-particle microbeam capillary collimator microbeam quality cell irradiation |
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