Title :
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
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;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 1998. Proceedings ISDEIV. XVIIIth International Symposium on
Conference_Location :
Eindhoven
Print_ISBN :
0-7803-3953-3
DOI :
10.1109/DEIV.1998.740563
