Title :
Gun breakdown prevention in a system with dense nonrelativistic electron beam focused on a solid target in pulses with millisecond duration
Author :
Arkhipov, A.V. ; Sominski, G.G.
Author_Institution :
St. Petersburg State Tech. Univ., Russia
Abstract :
Experiments on formation of a dense nonrelativistic long-pulsed electron beam (20-50 keV, 1-5 A) are presented. As a result of prevention of discharge processes in the high-voltage gap of an electron gun, high energetical parameters of electron beam (pulse duration up to 5 ms and energy density up to 100 kT/cm2) had been obtained. A qualitative model of observed phenomena is proposed
Keywords :
discharges (electric); electron beam focusing; electron beams; electron guns; 1 to 5 A; 20 to 50 keV; dense nonrelativistic electron beam; discharge processes prevention; electron gun; energy density; gun breakdown prevention; high-voltage gap; millisecond duration pulses; qualitative model; solid target; Cathodes; Electric breakdown; Electron beams; Magnetic shielding; Plasma density; Plasma diagnostics; Plasma temperature; Protection; Solids; Structural beams;
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.1998.738876
