摘要
加速器的束流位置通常采用四个纽扣形电极的束流位置探测器(BPM)进行测量。本文主要探讨了一种BPM的理论设计方法。首先利用有限元方法对BPM电极的感应电荷进行理论计算,得到四个电极感应的电信号与位置信号的理论关系;利用最小二乘法原理对此结果进行多项式拟合,求出标定系数。在此基础上通过更改BPM的几何参数,求出相应的标定系数,即可得到不同性能的BPM。经优化处理得到所需的束流位置探测器设计参数。
A method for optimizing the design of beam position monitors (BPM) is described. The finite element method was used to calculate the induced charge produced on four-button electrodes of the BPM. The normalization coefficient could be calculated from this induced signal according to the least square method. Then the design of BPMs with different capabilities was carried out.
出处
《核技术》
CAS
CSCD
北大核心
2003年第4期261-265,共5页
Nuclear Techniques
