The transverse emittance of the extracted beam from the heavy ion medical machine cyclotron is measured and then optimized for injection into the synchrotron.For the purposes of cross-validation,three methods,i.e.,slitgrid,Q-scan,and 3-grid,are used to measure the emittance.In the slit-grid technique,an automatic selection of the region of interest is adopted to isolate the major noise from the beam phase space,which is an improvement over the traditional technique.After iterating over the contour level,an unbiased measurement of the emittance can be obtained.An improvement in the thin lens technique is implemented in the Q-scan method.The results of these measurements are presented.
类型: 期刊论文
作者: Yong-Chun Feng,Min Li,Rui-Shi Mao,Bing Wang,Sheng-Peng Li,Wei-Long Li,Wei-Nian Ma,Xin-Cai Kang,Jin-Quan Zhang,Peng Li,Tie-Cheng Zhao,Zhi-Guo Xu,You-Jin Yuan
来源: Nuclear Science and Techniques 2019年12期
年度: 2019
分类: 工程科技Ⅱ辑
专业: 仪器仪表工业,核科学技术
单位: Institute of Modern Physics,Chinese Academy of Sciences,School of Nuclear Science and Technology,University of Chinese Academy of Sciences,Lanzhou University of Technology
基金: supported by the National Natural Science Foundation of China(No.11775281)
分类号: TH77;TL542
页码: 39-46
总页数: 8
文件大小: 1188K
下载量: 1
本文来源: https://www.lunwen90.cn/article/ef10ebc4f2075243272b06a8.html