DocumentCode
3072137
Title
Temporal evolution of micro-plasma in a repetitive vacuum arc soft x-ray source
Author
Yanagidaira, T. ; Kotake, W. ; Miura, H. ; Tsuruta, K.
Author_Institution
Department of Electrical and Electronic Engineering, lbaraki University, Nakanarusawa 4-12-1, Hitachi, Ibaraki, 316-8511 JAPAN
Volume
2
fYear
2004
fDate
Sept. 27 2004-Oct. 1 2004
Firstpage
557
Lastpage
560
Abstract
Soft x-ray emission from a short vacuum gap, operated with a repetitive low-current discharge was investigated. Electrons are accelerated by an electric field in a cathode sheath that is formed after arc extinction, and soft x-rays were emitted in the period between arc extinction and subsequent breakdown. The schlieren photographs and Langmuir probe diagnostics showed that the micro plasma of diameter less than 1 mm is formed during arc phase, and the ion sheath extended with velocity of 104/m/s , which agreed with calculation. The existence time of the dense plasma was 10 - 20 ns.
Keywords
Acceleration; Cathodes; Electron beams; Electron emission; Plasma accelerators; Plasma sheaths; Plasma temperature; Vacuum arcs; Voltage; X-ray lasers;
fLanguage
English
Publisher
ieee
Conference_Titel
Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV. XXIst International Symposium on
Conference_Location
Yalta, Crimea
ISSN
1093-2941
Print_ISBN
0-7803-8461-X
Type
conf
DOI
10.1109/DEIV.2004.1422675
Filename
1422675
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