Measurement of electron temperature and density in an argon microdischarge by laser Thomson scattering

Autor:	Vincent M. Donnelly, Nader Sadeghi, Qiang Wang, Sergey G. Belostotskiy, Rahul Khandelwal, Demetre J. Economou
Rok vydání:	2008
Předmět:	Electron density Argon Physics and Astronomy (miscellaneous) Chemistry Thomson scattering Plasma parameters chemistry.chemical_element Laser law.invention law Electron temperature Plasma diagnostics Atomic physics Current (fluid)
Zdroj:	Applied Physics Letters. 92:221507
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.2939437
Popis:	Laser Thomson scattering in a novel, backscattered configuration was employed to measure the electron temperature (Te) and electron density (ne) in argon dc microdischarges, with an interelectrode gap of 600μm. Measurements were performed at the center of the gap that corresponds to the positive column. For 50mA microdischarge current and over the pressure range of 300–700Torr, the plasma parameters were found to be Te=0.9±0.3eV and ne=(6±3)×1013cm−3, in reasonable agreement with the predictions of a mathematical model.
Databáze:	OpenAIRE
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