高功率微波源用电子收集极材料:强流高能电子束轰击下的物理效应及对材料性能的要求*

doi:10.11896/j.issn.1005-023X.2017.07.017

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Abstract Collector of high-power microwave source is a key component which influences the stability and lifetime of the high-power microwave system. The physical effects rose from collector bombarded by high-current electron beam, such as secondary electrons, back scattered electrons, and Bremsstrahlung radiation, which consequently lead to quality decline of the generated microwave. The substantial temperature rise induced by continuous concentration of electron beam energy upon electron collector will result in invalidation or even structural failure of the collector. Moreover, high-current relativistic electron beam bombardment also causes material's partial evaporation and subsequently, pollution of the vacuum chamber. In this paper, the physical effects rose from the material bombarded by high-current electron beam are discussed, with which requirements for both properties and materials of collector for high-power microwave source are proposed.

Key words： high-current electron beam physical effect collector material high-power microwave source

Published: 08 May 2018

CLC number:

TQ165

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	Articles by authors
	CHEN Bin
	WAN Hong
	HUA Ye

Cite this article:

CHEN Bin,WAN Hong,HUA Ye. Electron Collector Materials for High-power Microwave Source: High-current Relativistic Electron Beam Bombardment-induced Physical Effects and Relevant Performance Requirements[J]. Materials Reports, 2017, 31(7): 108-113.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.07.017 OR http://www.mater-rep.com/EN/Y2017/V31/I7/108

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