Title :
Influence of EM-field inhomogeneity on the initial stage of MW electron avalanche on a dielectric surface in vacuum
Author :
Galstjan, Eugene
Author_Institution :
Moscow Radiotech. Inst., Acad. of Sci., Moscow, Russia
Abstract :
This paper is devoted to a theoretical investigation of an influence of Miller´s force on the initial stage (the stage of a surface charge creation) of MW SEEA (secondary electron emission avalanche) under various conditions. It has been shown that this force can significantly affect the initial stage of the SEEA resulting in the linear or the exponential time dependence of the surface charge density. Also the dependence of Miller´s force on an angle of incidence of the EM wave has been studied for electric and magnetic polarization. In the second case not only a value of the force varies with the angle, but its sign as well
Keywords :
electric breakdown; electromagnetic fields; flashover; polarisation; secondary electron emission; surface discharges; vacuum breakdown; vacuum insulation; EM-field inhomogeneity; Miller´s force; dielectric surface; electric polarization; exponential time dependence; linear time dependence; magnetic polarization; secondary electron emission avalanche; surface charge creation; surface charge density; vacuum; Current density; Dielectric constant; Dielectrics and electrical insulation; Electron emission; Equations; Frequency; Nonuniform electric fields; Polarization; Surface charging; Surface discharges;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 1996. Proceedings. ISDEIV., XVIIth International Symposium on
Conference_Location :
Berkeley, CA
Print_ISBN :
0-7803-2906-6
DOI :
10.1109/DEIV.1996.545388
