Study of field-induced explosive electron emission mechanisms of pseudospark superemission cathodes
Zhu JB(朱俊彪); Zhuang JJ(庄杰佳); Zhu, JB; Wang, ZJ; Zhuang, JJ
刊名IEEE TRANSACTIONS ON PLASMA SCIENCE
1996
卷号24期号:5页码:1285-1290
学科分类Physics
通讯作者ACAD SINICA,SHANGHAI INST OPT & FINE MECH,SHANGHAI 201800,PEOPLES R CHINA
文章类型Article
英文摘要Various mechanisms of electron emission, including the field, field-enhanced thermionic, and explosive electron emissions from pseudospark cathodes, are discussed and compared, The mechanism of the field-induced explosive electron emission due to microstructure on the cathode surface is considered to be more likely the pseudospark superemissive mechanism. A high-mean electric field up to 3-5 MV/cm on the cathode surface in the end of hollow cathode phase is enough to initiate the mechanism, The cathode spot initiation delay time (<10 ns) and explosive emission threshold current (similar to 10(8) A/cm(2)) prior to the high current conducting phase are given by solving the initial value problem of the one-dimensional heat conduction equation, thus explaining the existing experimental data of the pseudospark cathode superemission. In the case of multigap discharge, the above mechanism occurs on nearly all cathode and interelectrode surfaces, Experimental evidence in single- and multigap pseudospark discharges supports the suggested explanation.
类目[WOS]Physics, Fluids & Plasmas
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:A1996VM43900002
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239254
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
作者单位中国科学院高能物理研究所
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Zhu JB,Zhuang JJ,Zhu, JB,et al. Study of field-induced explosive electron emission mechanisms of pseudospark superemission cathodes[J]. IEEE TRANSACTIONS ON PLASMA SCIENCE,1996,24(5):1285-1290.
APA 朱俊彪,庄杰佳,Zhu, JB,Wang, ZJ,&Zhuang, JJ.(1996).Study of field-induced explosive electron emission mechanisms of pseudospark superemission cathodes.IEEE TRANSACTIONS ON PLASMA SCIENCE,24(5),1285-1290.
MLA 朱俊彪,et al."Study of field-induced explosive electron emission mechanisms of pseudospark superemission cathodes".IEEE TRANSACTIONS ON PLASMA SCIENCE 24.5(1996):1285-1290.
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