强流脉冲电子束位置测量探头标定结果不确定度分析

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、B类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。

Uncertainty in intense pulse electron beam position monitor

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- resistive ring monitor and B-dot is less than 0.1mm based on calibrating data.