Influence of anode spots on characteristics of a plasma electron emitter with constricted arc discharge

Journal Article · Thu Nov 01 04:00:00 EST 1979 · High Temp. (USSR) (Engl. Transl.); (United States)

OSTI ID:5121601

Zlobina, A F; Kaz'min, G S; Kreindel', Y E

It is shown that in a plasma emitter consisting of a constricted arc discharge with a cold cathode in a magnetic field, the current density near the emission aperture can attain threshold values, above which anode spots appear on the surface of the principal anode. Switching of the arc to a burning mode with an anode spot is accompanied by the appearance of instabilities and by restriction of the emission current. Methods are analyzed for increasing the threshold current for formation of anode spots.

• Research Organization: Tomsk Institute for Automated Control Systems and Radioelectronics
• OSTI ID: 5121601
• Journal Information: High Temp. (USSR) (Engl. Transl.); (United States), Journal Name: High Temp. (USSR) (Engl. Transl.); (United States) Vol. 17:3; ISSN HITEA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700106* -- Fusion Energy-- Plasma Research-- Plasma Production-- (-1987)
ANODES
COLD CATHODE TUBES
CURRENT DENSITY
CURRENTS
ELECTRIC ARCS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRODES
ELECTRON EMISSION
ELECTRON TUBES
EMISSION
FURNACES
MAGNETIC FIELDS
PLASMA FURNACES