Spectroscopic determination of electron density and temperature profiles in an inductively-coupled argon plasma

S. Nowak, J.J.A.M. Mullen, van der, B. Sijde, van der, D.C. Schram

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Abstract

We have measured local profiles of the electron density and temperature in an atmospheric plasma using absolute intensities of highly excited argon states. The electron-density profile has been determined independently by spatially resolved measurements of the Stark broadening of the hydrogen-ß line. By comparing these two methods, deviations from local thermal equilibrium may be characterized. Experimental results from an inductively-coupled argon plasma are presented and indicate that the plasma is close to LTE.
Original languageEnglish
Pages (from-to)177-186
JournalJournal of Quantitative Spectroscopy and Radiative Transfer
Volume41
Issue number3
DOIs
Publication statusPublished - 1989

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