Observation of the field emission from the melting zone occurred just before the explosive electron emission

Author

Batrakov, A.V. ; Proskurovsky, D.I. ; Popov, S.A.

Author_Institution

Inst. of High-Current Electron., Tomsk, Russia

Volume

1

fYear

1998

fDate

17-21 Aug 1998

Firstpage

16

Abstract

Emission patterns corresponding to the transition of intense field emission to explosive electron emission, not observed earlier, have been obtained with the use of a Muller projector and high voltage pulses of duration 2-5 ns. The brightness of these patterns is much higher than that of conventional field emission patterns. Moreover, the images obtained have a specific structure of varied brightness, such that regions of different brightness are “framed” in rings. Analysis of experimental data suggests that these patterns are field-emission in nature. The appearance of emission patterns of this type is accounted for by the electron emission from the liquid phase, occurring immediately prior to the explosion of a microemitter

Keywords

electron field emission; melting; 2 to 5 ns; Muller projector; W; emission patterns; explosive electron emission; field emission; field emission patterns; high voltage pulses; images; liquid phase; melting zone; microemitter explosion; Brightness; Cathodes; Data analysis; Electron emission; Explosions; Explosives; Iron; Pattern analysis; Vacuum arcs; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Discharges and Electrical Insulation in Vacuum, 1998. Proceedings ISDEIV. XVIIIth International Symposium on

Conference_Location

Eindhoven

ISSN

1093-2941

Print_ISBN

0-7803-3953-3

Type

conf

DOI

10.1109/DEIV.1998.740563

Filename

740563