Numerical optimization and multi-particle dynamics simulation of the radial matching section of the RFQ  

作　　者：肖陈 何源 原有进 王志军 刘勇 贺守波 徐孟鑫 常玮 李超 岳伟明 赵红卫 夏佳文 

机构地区：[1]Institute of Modern Physics,Chinese Academy of Sciences [2]Graduate University of Chinese Academy of Sciences [3]School of Nuclear Science and Technology,Lanzhou University

出　　处：《Chinese Physics C》2011年第10期964-968,共5页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (10635090)

摘　　要：The ABC code is an optimization program for the development of matching channels and dynamical matchers in radio frequency quadrupole （RFQ） structures, and a new approach to this code to define the geometry of the radial matching section of the RFQ has been developed. This approach is based on the application of the numerical optimization step by step. This optimization is intended to search for the initial matching condition of a beam, the optimization of parameters of a cell of the channel on given characteristic parameters and traces of a beam in linear channels in both forward and backward directions. To further verify the results of the optimization, multi-particle beam dynamics simulations have been carried out using the BEAMPATH and TRACK codes. The result of the beam dynamics simulation shows that the optimization result of the ABC code is reasonable and this approach provides an opportunity to redesign the structure of the radial matching section of the RFQ.The ABC code is an optimization program for the development of matching channels and dynamical matchers in radio frequency quadrupole （RFQ） structures, and a new approach to this code to define the geometry of the radial matching section of the RFQ has been developed. This approach is based on the application of the numerical optimization step by step. This optimization is intended to search for the initial matching condition of a beam, the optimization of parameters of a cell of the channel on given characteristic parameters and traces of a beam in linear channels in both forward and backward directions. To further verify the results of the optimization, multi-particle beam dynamics simulations have been carried out using the BEAMPATH and TRACK codes. The result of the beam dynamics simulation shows that the optimization result of the ABC code is reasonable and this approach provides an opportunity to redesign the structure of the radial matching section of the RFQ.

关 键 词：radial matching section optimization ABC code BEAMPATH code TRACK code 

分 类 号：O572.2[理学—粒子物理与原子核物理]