Capacitive divider for output voltage measurement of intense electron beam accelerator

Ding Desheng; Yi Lingzhi; Yu Binxiong; Hong Zhiqiang; Liu Jinliang

doi:10.3788/HPLPB20122410.2497

Volume 24 Issue 10

Sep. 2012

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Article Navigation > High Power Laser and Particle Beams > 2012 > 24(10): 2497-2501

Li Feng, Wang Meng, Yang Zun, et al. Surface flashover character of insulator in vacuum under self-magnetic field[J]. High Power Laser and Particle Beams, 2012, 24: 2925-2929. doi: 10.3788/HPLPB20122412.2925

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Ding Desheng, Yi Lingzhi, Yu Binxiong, et al. Capacitive divider for output voltage measurement of intense electron beam accelerator[J]. High Power Laser and Particle Beams, 2012, 24: 2497-2501. doi: 10.3788/HPLPB20122410.2497

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Capacitive divider for output voltage measurement of intense electron beam accelerator

doi: 10.3788/HPLPB20122410.2497

1.
College of Information Engineering,Xiangtan University,Xiangtan 411000,China;
2.
College of Opto-electric Science and Engineering,National University of Defense Technology,Changsha 410073,China

Received Date: 2012-01-04
Rev Recd Date: 2012-03-27
Publish Date: 2012-10-15

Abstract

Abstract

A kind of simple-mechanism, easy-disassembly self-integrating capacitive divider used for measuring diode output voltage of intense electron beam accelerator (IEBA) is developed. The structure of the capacitive divider is described, and the capacitance value of the capacitive divider is calculated by theoretical analysis and electromagnetic simulation. The dependence of measurement voltage on electrical parameters such as stray capacitance, earth capacitance of front resistance is obtained by PSpice simulation. Measured waveforms appear overshoot phenomenon when stray capacitance of front resistance is larger, and the wavefront will be affected when earth capacitance of front resistance is larger. The diode output voltage waveforms of intense electron beam accelerator, are measured by capacitive divider and calibrated by water resistance divider, which is accordance with that measured by a resistive divider, the division ratio is about 563 007. The designed capacitive divider can be used to measure high-voltage pulse with 100 ns full width at half maximum.
- intense electron beam accelerator,
- capacitive divider,
- high voltage pulse,
- front resistance,
- stray parameters

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