Title :
Special features of arc discharge in a plasma electron source at forevacuum pressure
Author :
Kazakov, A.V. ; Medovnik, A.V. ; Burdovitsin, V.A. ; Oks, E.M.
Author_Institution :
Tomsk State Univ. of Control Syst. & Radioelectron., Tomsk, Russia
fDate :
Sept. 28 2014-Oct. 3 2014
Abstract :
The paper reports on research in the initiation processes of a pulsed arc with a cathode spot in the forevacuum pressure range from several to hundreds of Pa. These arc operating conditions were realized in the discharge system of a plasma electron source. The arc was initiated by an auxiliary dielectric surface discharge (flashover). It is shown that stable ignition of the arc is assisted by an increase in gas pressure and flashover of ferrite.
Keywords :
cathodes; dielectric-barrier discharges; ferrites; flashover; ignition; plasma sources; surface discharges; vacuum arcs; Fe2O3; arc discharge; auxiliary dielectric surface discharge; cathode spot; ferrite flashover; forevacuum pressure; gas pressure; plasma electron source; pulsed arc; stable ignition; Arc discharges; Cathodes; Discharges (electric); Electron sources; Fault location; Surface discharges;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum (ISDEIV), 2014 International Symposium on
Conference_Location :
Mumbai
Print_ISBN :
978-1-4799-6750-6
DOI :
10.1109/DEIV.2014.6961788
