用于激光尾波场中电子束电荷测量的积分束流仪标定

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Integrating current transformer calibration for charge measurement of electron beam generated in laser wakefield acceleration

1.
Key Laboratory of Basic Plasma Physics of Chinese Academy of Sciences,Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China;
2.
National Key Laboratory of Laser Fusion,Research Center of Laser Fusion,CAEP,P.O.Box 919-986,Mianyang 621900,China

摘要: 利用数字信号发生器及示波器对积分束流仪(ICT)的输入输出特性进行了标定，给出了不同脉冲宽度及幅度的输入信号与ICT输出结果的电荷量比值关系、输入脉冲对ICT的输出脉冲宽度的影响以及ICT对连续脉冲信号的输出响应等。标定结果显示:ICT的输入输出满足很好的线性关系；当输入连续脉冲的间隔小于一定程度时，ICT将会视为一个信号输出；ICT的输出脉冲形状及脉冲宽度与输入信号的形状及幅度无关。
- 积分束流仪 /
- 标定 /
- 电荷测量 /
- 激光尾波场
Abstract: This paper presents the calibration of the input-output characteristic of integrating current transformer (ICT) by digital signal generation and oscilloscope, gives the ratio of input and output of the calibrated ICT under different input pulse durations and amplitudes, the effect of input pulse duration on the ICT output pulse duration, the response of the ICT to the consecutive input pulses. The calibration reveals that the relation between input and output of ICT is linearity, and the ICT will output one signal when the interval of the successive signals is very small, and also the shape and duration of the output are independent of that of the input signal.
- integrating current transformer /
- calibration /
- charge measurement /
- laser wakefield

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