1.2MW加速器电子光学系统静态、动态模拟  

Static and dynamic simulation for electron optics system of a 1.2 MW accelerator

作　　者：肖德鑫[1] 王保健[1] 何小海[1] 刘平[1] 赵建华[1] 

机构地区：[1]中国工程物理研究院环境保护工程研究中心,绵阳621900

出　　处：《核技术》2008年第8期591-594,共4页Nuclear Techniques

摘　　要：PIC(Particle in cell)编码能跟踪数千个宏粒子,已经成为研究束流物理的重要工具。本文介绍了PIC模拟方法;并用静态、动态模拟软件对中国工程物理研究院研制的1.2MW加速器电子光学系统进行模拟。结果显示:随着加速器束流强度增加,加速管出口处束斑半径先逐渐减小,然后逐渐增大。在束流为250mA左右时,束斑半径达到最小,此时两模拟结果之间的差异为7%;在500mA时,束斑半径与小束流时相当,两模拟结果之间的差异达到了29%。Nowadays, for its capability in tracking thousands of macro particles, PIC coding has to become an important tool for studying beam physics. In this paper the PIC method for the accelerator＇s electron-optics simulation is introduced; 1.2 MW accelerator＇s electron-optical-system made in Chinese Academy of Engineering Physics has also been simulated using static and dynamic methods. Results show that as the intensity of the beam flux increases, the radius of the beam firstly decreases and then increases gradually. When the beam flux is around 250 mA, the beam radius reaches a minimum value, and the results of these two methods differentiate with each other by 7%; however, the beam radius of 500 mA beam flux reaches to that of small beam flux, and the results of these two methods differ from each other by 29%.

关 键 词：电子加速器 电子光学 PIC模拟 

分 类 号：TL501.5[核科学技术—核技术及应用]