On The Stark Shift of Ar II 472.68 nm Spectral Line

Physics

Scientific paper

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Plasma Diagnostic Techniques And Instrumentation, Plasma Sources

Scientific paper

The Stark shift of Ar II 472.68 nm (transition 4s2P - 4p2D°) spectral lines emitted from T-tube plasmas was considered. The electron density ranged from (1.63-2.2).1023 m-3 and was determined using laser interferometry. The plasma temperature, derived from the Gaussian part of recorded line profiles was found to be in the range (15000-43300) K. Experimental shifts were compared to theoretical values obtained from the semiempirical formula [M. S. Dimitrijević and N. Konjević, J. Quant. Spectrosc. Radiat. Transfer 24, 451 (1980)]. This comparison showed good agreement between experimental results and theory.

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