| 高频振荡下缓慢前沿的电子束电流波形测量 |
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| 引用本文： | 周军,耿松,刘万东,李弘,谢锦林,兰涛,刘阿娣,付宸硕,朱逸伦,涂翠.高频振荡下缓慢前沿的电子束电流波形测量[J].强激光与粒子束,2013,25(11):2877-2881. |
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| 作者姓名： | 周军 耿松 刘万东 李弘 谢锦林 兰涛 刘阿娣 付宸硕 朱逸伦 涂翠 |
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| 作者单位： | 1.中国科学技术大学 近代物理系, 中国科学院 基础等离子体重点实验室, 合肥 230026; |
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| 摘 要： | 推导了Rogowski线圈理论，给出了任意Rogowski线圈的表达式。通过使用高磁导率的磁芯材料，增加线圈匝数，设计出了能有效测量前沿变化0.1 s、强度mA量级的电子束电流的Rogowski线圈，并测得了电子束等离子体装置中的电子束电流信号。利用推导的任意Rogowski线圈表达式，成功获得低频与高频共存的电流波形。测量结果表明，该电子束等离子体系统中存在束流振荡，振荡幅度达12%。
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| 关 键 词： | 电子束等离子体 电子束电流 高频振荡 Rogowski线圈 |
| 收稿时间： | 2013-03-15 |
Measurement of slow-rising-edge electron-beam current under high frequency oscillation |
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| Affiliation: | 1.Key Laboratory of Basic Plasma physics,and Department of Modern Physics of Chinese Academy of Sciences,University of Science and Technology of China,Hefei 230026,China;2.State Key Laboratory of Intense Pulsed Radiation Simulation and Effect,Northwest Institute of Nuclear Technology,Xi’an 710024,China |
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| Abstract: | An arbitrary Rogowski coil expression was deduced in this paper. Using high permeability magnetic core and adding turns of the coil, the Rogowski coil was designed, which could measure the low current with slow-rising edge. And the electron-beam signal was obtained by the Rogowski coil. Using the deduced expression of arbitrary Rogowski coil, the current waveforms with low frequency and high frequency were gained. The results show that beam oscillation exists in this electron-beam plasma system, and the oscillation amplitude reaches 12%. |
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