Spectroscopic study of a supersonic jet of laser-heated argon plasma

Autor: Zbigniew Peradzyński, M. Dudeck, M. de Graaf, J. Hoffman, J. Kurzyna, Zygmunt Szymanski, Viviana Lago
Rok vydání: 1997
Předmět:
Zdroj: Journal of Physics D: Applied Physics. 30:998-1006
ISSN: 1361-6463
0022-3727
DOI: 10.1088/0022-3727/30/6/013
Popis: A spectroscopic study of a low-pressure supersonic jet of laser-heated argon plasma is presented. The experimental set-up consisted of a high-pressure convergent nozzle and a supersonic nozzle. The supersonic nozzle was placed just behind the convergent nozzle and was connected to a low-pressure chamber. A continuous wave laser with output power of 2 kW was used to maintain the plasma in the stream of argon gas flowing from the convergent nozzle. The plasma then expanded through the supersonic nozzle. Emission spectra from the laser-sustained plasma and supersonic jet were measured with a 1.3 m focal length spectrograph and 1254 silicon intensified target (SIT) detector connected to an EG&G PARC optical multichannel analyser (OMA) III. We found that the supersonic stream of argon plasma had an electron density of - and a temperature of 6 - 7 kK.
Databáze: OpenAIRE