Experimental investigation of explosive emission cathode properties in planar diode

song fa-lun; zhang yong-hui; xiang fei; zhao dian-lin; liu zhong; gan yan-qing; ju bing-quan

Volume 20 Issue 09

Sep. 2008

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Article Navigation > High Power Laser and Particle Beams > 2008 > 20(09): 0-

sun zhihong, xia yanwen, liu hua, et al. Contrast ratio measurement of single shot picosecond pulse using third-order noncollinear autocorrelation technique[J]. High Power Laser and Particle Beams, 2010, 22.

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song fa-lun, zhang yong-hui, xiang fei, et al. Experimental investigation of explosive emission cathode properties in planar diode[J]. High Power Laser and Particle Beams, 2008, 20.

Citation:

song fa-lun, zhang yong-hui, xiang fei, et al. Experimental investigation of explosive emission cathode properties in planar diode[J]. High Power Laser and Particle Beams, 2008, 20.

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Experimental investigation of explosive emission cathode properties in planar diode

1.
Institute of Applied Electronics,CAEP,P.O.Box 919-1015,Mianyang 621900,China

Publish Date: 2008-09-15

Abstract

Abstract

The properties of several materials as explosive emission cathode were studied experimentally on high voltage (0.6~1.0 MV), repetitive (100 Hz) electron accelerator, such as effective emission area, average current density, diode impedance and energy losses of electron beam. The results show that the effective emission area varies with the applied diode voltage just like square wave response. The effective emission area varies mildly 5 ns after the voltage pulse beginning. Among carbon fiber, velvet, graphite and stainless steel, the carbon fiber has the largest effective emission area and average current density. The diode impedance increases linearly with the increase of the cathode-anode gap distance. The diode impedance mismatch with the transmitting line is the main factor of the ener
- planar diode,
- explosive emission,
- cathode property,
- intense electron beam

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