| BPM 技术用于环形电子束位置测量的可行性分析 |
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| 引用本文： | 李春霞,王冬,王建新.BPM 技术用于环形电子束位置测量的可行性分析[J].微波学报,2014,30(S2):475-477. |
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| 作者姓名： | 李春霞 王冬 王建新 |
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| 作者单位： | （中国工程物理研究院应用电子学研究所高功率微波技术重点实验室，绵阳 621900） |
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| 基金项目： | 高功率微波技术重点实验室基金（2014HPM-03） |
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| 摘 要： | 为了对传输管道半径24mm，电子束半径19mm，厚度3mm 的环形电子束位置开展非阻拦测量，选择了BPM 技
术方案。对比研究了真空管道中环形电子束与位于束团中心的实心束在管道壁上产生的场分布，证明BPM 测量技术可以
用于电流密度均匀分布的环形电子束。采用点密度不均匀性模型，分析了环形电子束角向不均匀性对测量精度的影响。
结果显示，当环形电子束电流密度不均匀性应为10%时，对位置分辨率精度的影响为0.1mm。
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| 关 键 词： | 束流位置监测 环形电子束 不均匀性 |
The Analysis of Feasibility on the Usage of BPM System for Position
Measurement of Annular Beams |
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| LI Chun-xi,WANG Dong,WANG Jian-xin.The Analysis of Feasibility on the Usage of BPM System for Position
Measurement of Annular Beams[J].Journal of Microwaves,2014,30(S2):475-477. |
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| Authors: | LI Chun-xi WANG Dong WANG Jian-xin |
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| Affiliation: | (Institute of Applied Electronics CAEP, Science and Technology on High Power Microwave Laboratory, Mianyang 621900, China) |
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| Abstract: | For non-interceptive position measurement of annular beams with travelling radius of 24mm, beam radius of
19mm, thickness of 3mm,the BPM technical scheme was chosen. The electric field on the wall of a circular chamber produced by
an annular beam is compared with that of a pencil beam located at the same axes. It is proved that BPM system can be used for
position measurement of annular beams. Taken a single-point non-uniform model, the influence of the azimuthally non-uniformity
on measurement accuracy is analyzed. And it is revealed that 10% single-point non-uniformity caused a 0.1mm measurement
deviation. |
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| Keywords: | beam position monitor annular beam non-uniformity |
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