Multipacting simulation and analysis of a taper quarter wave cavity by using Analyst-PT3P  

作　　者：张聪 何源 赵红卫 张生虎 

机构地区：[1]Institute of Modern Physics, Chinese Academy of Sciences [2]Graduate University of Chinese Academy of Sciences

出　　处：《Chinese Physics C》2012年第4期362-366,共5页中国物理C（英文版）

基　　金：Supported by National Nature Science Foundation of China(91026001)

摘　　要：Since the tapered quarter wave resonator （QWR） cavity is proven to have a much lower peak surface magnetic field in the short plate and a lower peak surface electric field near the beam tube compared with the straight outer conductor QWR, it has been recommended for the separated sector cyclotron linac injector system in the heavy ion research facility in Lanzhou. This paper is focused on the multipacting （MP） analysis for the tapered QWR with a frequency of 80.5 MHz and beta of 0.085. Using the Analyst program, MP bands can be simulated and analyzed with the Particle Tracking module to identify potential problems in the cavity design. This paper will present the simulation results of MP for the tapered QWR cavity.Since the tapered quarter wave resonator （QWR） cavity is proven to have a much lower peak surface magnetic field in the short plate and a lower peak surface electric field near the beam tube compared with the straight outer conductor QWR, it has been recommended for the separated sector cyclotron linac injector system in the heavy ion research facility in Lanzhou. This paper is focused on the multipacting （MP） analysis for the tapered QWR with a frequency of 80.5 MHz and beta of 0.085. Using the Analyst program, MP bands can be simulated and analyzed with the Particle Tracking module to identify potential problems in the cavity design. This paper will present the simulation results of MP for the tapered QWR cavity.

关 键 词：multipacting tapered QWR superconducting cavity Analyst program 

分 类 号：TL503.2[核科学技术—核技术及应用]