NDLI: High-power critical electron emission from dielectric induced by high-current-density electron beam injection and its transition to vacuum breakdown

Content Provider	IEEE Xplore Digital Library
Author	Vaisburd, D. Tverdokhlebov, S. Tukhfatulin, T.
Copyright Year	1996
Description	Author affiliation: Inst. of High-Current Electron., Acad. of Sci., Tomsk, Russia (Vaisburd, D.)
Abstract	Since 1975, the authors' laboratory has been investigating the critical electron emission from dielectrics into vacuum with nanosecond time resolution using high-current-density electron accelerators. It allowed them to clear up some intrinsic properties of the critical electron emission induced by electron beam injection: (1) the emission pulse is delayed for several nanoseconds from the injection pulse; (2) the peak value of the emission current reaches 100-1000 A; (3) direct experimental evidence is obtained for intense electron-hole generation by superhigh electric field in subsurface layer of dielectric-this process is discovered to be the main reason of the transition to critical electron emission; (4) critical emission is not uniform and accompanied by point explosions on the dielectric surface and by injections of ion plasmas from these points into vacuum; and (5) transition of critical emission to vacuum breakdown has been observed.
Starting Page	435
Ending Page	438
File Size	344746
Page Count	4
File Format	PDF
ISBN	0780329066
DOI	10.1109/DEIV.1996.545397
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-07-21
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electron emission Dielectrics Vacuum breakdown Electron accelerators Plasma properties Electron beams Delay DC generators Pulse generation Explosions
Content Type	Text
Resource Type	Article

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