Effect of cathode surface state on the characteristics of pulsed hollow-cathode glow discharges

Citation
Nv. Gavrilov et Se. Romanov, Effect of cathode surface state on the characteristics of pulsed hollow-cathode glow discharges, TECH PHYS, 44(5), 1999, pp. 497-500
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
TECHNICAL PHYSICS
ISSN journal
10637842 → ACNP
Volume
44
Issue
5
Year of publication
1999
Pages
497 - 500
Database
ISI
SICI code
1063-7842(199905)44:5<497:EOCSSO>2.0.ZU;2-U
Abstract
A study is made of the effect of pulse repetition rate (0.1-10(3) s(-1)) an d average discharge current (0-1 A) on the breakdown delay time and burning voltage of low-pressure glow discharges (p < 0.1 Pa) in an electrode syste m of the reverse magnetron type with a large cathode surface area (approxim ate to 10(3) cm(2)). It is shown that increasing the repetition rate leads to a many-fold reduction in the statistical spread in the delay time and in the discharge formation time, while the average discharge current has a si gnificant effect on the burning voltage. The mechanism for the observed phe nomena is interpreted qualitatively in terms of the presence of thin dielec tric films on the cathode surface. (C) 1999 American Institute of Physics. [S1063-7842(99)00405-5].