Title :
Kinetic theory approach for energy exchange processes in high-current electron emission
Author :
Uimanov, I.V. ; Litvinov, E.A.
Author_Institution :
Inst. of Electrophys., Acad. of Sci., Ekaterinburg, Russia
Abstract :
The influence of the finite velocity of energy relaxation of nonequilibrium holes on the heat instability development leading to a vacuum breakdown have been investigated. For this purpose, a new more complete self-consistent approach has been proposed and developed which allows a description of field electron emission and energy exchange processes in high-current electron emission. It has been shown that taking into account the spatial distribution of the energy dissipation due to Nottingham´s effect and the vacant states induced by the emission process lead to the effectiveness decreasing of the Nottingham´s heating at the early stages of a cathode initiation of a vacuum breakdown
Keywords :
cathodes; electron field emission; plasma kinetic theory; vacuum breakdown; vacuum insulation; Nottingham´s effect; cathode initiation; energy dissipation spatial distribution; energy exchange processes; energy relaxation finite velocity; field electron emission; heat instability development; high-current electron emission; kinetic theory approach; nonequilibrium holes; vacant states; vacuum breakdown; Cathodes; Charge carrier processes; Distribution functions; Electron emission; Elementary particle vacuum; Energy dissipation; Energy exchange; Kinetic theory; Temperature; Vacuum breakdown;
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.1998.740565
