Simulation study of slow extraction for the Shanghai Advanced Proton Therapy facility  

作　　者：Yu-Hui Yang Man-Zhou Zhang De-Ming Li 

机构地区：[1]Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China [2]University of Chinese Academy of Sciences, Beijing 100049,China

出　　处：《Nuclear Science and Techniques》2017年第9期1-7,共7页核技术（英文）

基　　金：supported by the Youth Innovation Promotion Association of Chinese Academy of Sciences(No.20150210)

摘　　要：The Shanghai Advanced Proton Therapy facility employs third-integer slow extraction. In order to achieve accurate treatment, high-quality spill is needed. Therefore,parameters that may affect slow extraction should be investigated by simulation. A computer model of the synchrotron operation slow extraction was constructed with MATLAB~. By simulating the motion of the circulating protons, we could quantify the influence of machine and initial beam parameters on properties of the extracted beam, such as ripple, uniformity, stability, on-and off-time of the spill and spill width in the synchrotron.Suitable design parameters including the horizontal tunes,power supply ripple, longitudinal RF cavity voltage, RFKO and the chromaticities were determined.The Shanghai Advanced Proton Therapy facility employs third-integer slow extraction. In order to achieve accurate treatment, high-quality spill is needed. Therefore, parameters that may affect slow extraction should be investigated by simulation. A computer model of the syn- chrotron operation slow extraction was constructed with MATLAB~. By simulating the motion of the circulating protons, we could quantify the influence of machine and initial beam parameters on properties of the extracted beam, such as ripple, uniformity, stability, on- and off-time of the spill and spill width in the synchrotron. Suitable design parameters including the horizontal tunes, power supply ripple, longitudinal RF cavity voltage, RF- KO and the chromaticities were determined.

关 键 词：治疗设备 模拟 质子 提取 上海 装置 MATLAB 光束参数 

分 类 号：R197.39[医药卫生—卫生事业管理] TL544[医药卫生—公共卫生与预防医学]