High-current electron gun with a planar magnetron integrated with an explosive-emission cathode

5th International Congress on Energy Fluxes and Radiation Effects 2016

Kiziridi, P.P.^1 ; Ozur, G.E.^1

Institute of High-Current Electronics, SB RAS, Tomsk

634055, Russia^1

关键词: Copper wires;    Explosive emission cathode;    High current electron beams;    High currents;    Magnetron discharges;    Penning discharge;    Planar magnetron;    Stainless steel discs;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/830/1/012048/pdf
DOI  :  10.1088/1742-6596/830/1/012048

来源: IOP

【 摘 要 】

A new high-current electron gun with plasma anode and explosive-emission cathode integrated with planar pulsed powered magnetron is described. Five hundred twelve copper wires 1 mm in diameter and 15 mm in height serve as emitters. These emitters are installed on stainless steel disc (substrate) with 3-mm distance between them. Magnetron discharge plasma provides increased ion density on the periphery of plasma anode formed by high-current Penning discharge ignited within several milliseconds after starting of the magnetron discharge. The increased on the periphery ion density improves the uniformity of high-current electron beam produced in such an electron gun.