Liquidation of the emission centers on film cathode by high-voltage pulses in vacuum

Author

Emelyanov, A.A.

Author_Institution

Kazakh Nat. Tech. Univ., Kazakhstan

Volume

1

fYear

1996

fDate

21-26 Jul 1996

Firstpage

37

Abstract

The experimental results on electrode conditioning of a vacuum gap microchannel plate-cathodoluminescent screen of an image brightness amplifier, by high-voltage pulses of nanosecond range duration, have been presented. The nanosecond conditioning liquidates emission centers on the plate output surface, increases the local screen luminescence emergence voltage up to two working voltages and decreases dark currents by 1-2.5 orders. Conditioning efficiency increases with overvoltage growth at the gap and with pulse duration decrease

Keywords

cathodes; cathodoluminescence; electroluminescent devices; electron field emission; high-voltage techniques; image intensifiers; microchannel plates; overvoltage; vacuum breakdown; cathodoluminescent screen; conditioning efficiency; dark currents decrease; emission centers liquidation; film cathode; high-voltage pulses; image brightness amplifier; local screen luminescence emergence voltage; overvoltage growth; plate output surface; vacuum; vacuum gap microchannel plate; Brightness; Cathodes; Dark current; Electric breakdown; Electrodes; Luminescence; Microchannel; Optical amplifiers; Pulse amplifiers; Voltage control;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/DEIV.1996.545317

Filename

545317