The influence of vacuum conditions on the microwave generation in a vircator

Authors
Selemir, VD Dubinov, AE Ptitsyn, BG Evseenko, AA Letyagin, VA Nurgaliev, RK Suvorov, VG Sudovtsov, AV
Citation
Vd. Selemir et al., The influence of vacuum conditions on the microwave generation in a vircator, TECH PHYS L, 27(11), 2001, pp. 967-969
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
TECHNICAL PHYSICS LETTERS
ISSN journal
10637850 → ACNP
Volume
27
Issue
11
Year of publication
2001
Pages
967 - 969
Database
ISI
SICI code
1063-7850(2001)27:11<967:TIOVCO>2.0.ZU;2-N
Abstract
The effect of residual gases on the lifetime of a virtual cathode (VC) was studied. Dependence of the output pulse energy of a high-power vircator on the vacuum conditions was studied. It is demonstrated that a rough vacuum o f 5 x 10(-4) Torr achieved with a mechanical pump is sufficient for a virca tor operation without significant loss of the output radiation energy. The experimental data agree with a model of the mechanism of VC degradation as a result of the gas ionization. (C) 2001 MAIK "Nauka/Interperiodica".