Interaction of high-power MW with DC, RF, SHF and laser created plasmas

Yu F. Kolesnichenko, V. G. Brovkin, S. A. Afanas'ev, D. V. Khmara, V. A. Lashkov, I. Ch Mashek

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

Preliminary investigation of joint action of MW discharge and discharges of wide frequency range - from DC to laser - are carried out experimentally. For this purpose flexible experimental complex, including impulse powerful MW generator (500kW, 13GHz), cw SHF generator (500W, 2.45GHz), cw RF unit (350W, 40MHz), impulse NdiYAG laser (532nm, 130mJ/pulse) and impulse DC was assembled. Each unit in this complex operates both as a separate source and in combination with others. Present investigation was aimed mainly for testing of ability of different discharges, which consume low power for their maintaining, for ignition of impulse MW discharge of sub-breakdown intensity. For the first time the effect of very strong interaction of free microwaves with an external plasma channel, created by pulse air spark was revealed. Optic data reduction has been used for determination parameters of different discharge types, such as MW discharge and impulse spark. Emission spectroscopy of DC spark shows the presence of atomic lines N II and O II, thus, Stark broadening technique was applied. It gave the electron temperature in a spark channel of about 32000 K (2.8 eV) and electron concentration ne= 1.5-1016cm -3. Also interaction of high-power MW with RF and MW plasmas, produced by cw generators, was realized. The possibility of laser spark initiation of microwave discharge in quiescent air under the atmospheric pressure has been investigated.

Original languageEnglish
Pages6945-6953
Number of pages9
StatePublished - 1 Dec 2005
Event43rd AIAA Aerospace Sciences Meeting and Exhibit - Reno, United States
Duration: 10 Jan 200513 Jan 2005
Conference number: 43
https://arc.aiaa.org/doi/book/10.2514/MASM05
https://istina.msu.ru/collections/228254/

Conference

Conference43rd AIAA Aerospace Sciences Meeting and Exhibit
CountryUnited States
CityReno
Period10/01/0513/01/05
Internet address

Scopus subject areas

  • Engineering(all)

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