| 强流脉冲电子束位置测量探头标定结果不确定度分析 |
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| 引用本文： | 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. |
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| 作者姓名： | 李勤 刘云龙 王毅 杨兴林 李洪 李天涛 马冰 李劲 |
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| 作者单位： | 1.中国工程物理研究院 流体物理研究所, 四川 绵阳 621 900 |
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| 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、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。
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| 关 键 词： | 脉冲 电子束 束流位置 测量 标定 不确定度 |
| 收稿时间： | 2017-04-17 |
Uncertainty in intense pulse electron beam position monitor |
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| Affiliation: | 1.Institute of Fluid Physics,CAEP,P.O.Box 919-106,Mianyang 621900,China |
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| 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- resistive ring monitor and B-dot is less than 0.1mm based on calibrating data. |
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