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Titolo:
Experimental study of energy coupling and plasma breakdown in a pulsed high frequency resonant cavity
Autore:
Lacoste, A; Dias, FM; Boisse-Laporte, C; Leprince, P;
Indirizzi:
Univ Paris 11, Phys Gaz & Plasmas Lab, F-91405 Orsay, France Univ Paris 11 Orsay France F-91405 & Plasmas Lab, F-91405 Orsay, France Inst Super Tecn, Ctr Fis Plasma, P-1049001 Lisbon, Portugal Inst Super Tecn Lisbon Portugal P-1049001 ma, P-1049001 Lisbon, Portugal
Titolo Testata:
JOURNAL OF APPLIED PHYSICS
fascicolo: 6, volume: 89, anno: 2001,
pagine: 3108 - 3114
SICI:
0021-8979(20010315)89:6<3108:ESOECA>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
MICROWAVE-DISCHARGE; HIGH-DENSITY; HYDROGEN; AIR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Lacoste, A CNRS, Electrostat & Mat Dielect Lab, 25 Ave Martyrs,BP166, F-38042 Grenoble, France CNRS 25 Ave Martyrs,BP166 Grenoble France F-38042 oble, France
Citazione:
A. Lacoste et al., "Experimental study of energy coupling and plasma breakdown in a pulsed high frequency resonant cavity", J APPL PHYS, 89(6), 2001, pp. 3108-3114

Abstract

An experimental study of the electromagnetic behavior of a pulsed high frequency resonant cavity, operating in its fundamental TE111 mode, is presented. Typical pulse characteristics are a pulse width of 10 mus, microwave frequency of 1 GHz, and microwave power of a few kW. The various parameters (characteristic time tau, coupling factor beta, incident power P-i) that determine the temporal variation of the electrical characteristics (power entering in the cavity, electric field) during the pulse are defined. In particular, the influence of the coupling factor on the transition stage to a steady state is discussed for the cavity without plasma. The temporal behaviorof the cavity in the presence of a gas (argon and hydrogen) is also studied. For pressures ranging from 0.5 to 100 Torr, the discharge breakdown parameters (time tau (b), electric field E-b) in hydrogen are deduced from the experiments (t(b)similar to0.1-1 mus, E(b)similar to 300-3000 V/cm). The conditions to reach a quasisteady state plasma are derived from the qualitative analysis of the cavity behavior. (C) 2001 American Institute of Physics.

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Documento generato il 11/08/20 alle ore 15:52:12