X M Zhu et al 2009 J. Phys. D: Appl. Phys. 42 142003 doi:10.1088/0022-3727/42/14/142003
X M Zhu1, Y K Pu1, N Balcon2,3 and R Boswell2
Show affiliationsA new collisional–radiative model for atmospheric-pressure low-temperature argon discharges is proposed, which illustrates the significant effect of electron density on the excited atom population distribution. This makes it possible to determine the electron density from the intensity ratio of emission lines of excited atoms. Results of this new method in several types of atmospheric-pressure discharges are found to be in agreement with those of the Stark broadening method and the electric model over a wide electron density range 1011–1016 cm−3.
52.25.Os Emission, absorption, and scattering of electromagnetic radiation
52.70.Kz Optical (ultraviolet, visible, infrared) measurements
Issue 14 (21 July 2009)
Received 20 May 2009, in final form 9 June 2009
Published 26 June 2009
X M Zhu et al 2009 J. Phys. D: Appl. Phys. 42 142003
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