强激光与粒子束, 2017, 29 (12): 125101, 网络出版: 2017-12-25
强流脉冲电子束位置测量探头标定结果不确定度分析
Uncertainty in intense pulse electron beam position monitor
摘要
根据探测器测量原理和标定方法、特点, 分析其位置测量的不确定度主要来源于测量过程的A类不确定度、不确定度和最小二乘法引入的拟合不确定度, 确定了各个不确定度的计算方法, 得到了探测器的合成不确定度, 对于应用于神龙二号直线感应加速器的电阻环和磁探测器, 其合成不确定度约为0.1 mm。
Abstract
Beam position as a key parameter of intense electron beam linear induction accelerator, is criterion of electron beam tuning and experiment. The resistive ring monitor(RRM) and B-dot monitor are often used to measure the beam current and position simultaneously. According to the measuring principle, the calibration method and characters of monitor, type A and type B standard uncertainties and least square fit uncertainty were analyzed as the uncertainty sources of beam position monitors RRM and B-dot, and their evaluation were decided. The combined standard uncertainty of Dragon-Π resistive ring monitor and B-dot is less than 0.1 mm based on calibrating data.
李勤, 刘云龙, 王毅, 杨兴林, 李洪, 李天涛, 马冰, 李劲. 强流脉冲电子束位置测量探头标定结果不确定度分析[J]. 强激光与粒子束, 2017, 29(12): 125101. Li Qin, Liu Yunlong, Wang Yi, Yang Xinglin, Li Hong, Li Tiantao, Ma Bing, Li Jin. Uncertainty in intense pulse electron beam position monitor[J]. High Power Laser and Particle Beams, 2017, 29(12): 125101.