Plasma temperature determination based on the ratio of plasma electron densities obtained from hydrogen Hα and Hβ spectral lines

Abstract

Method for plasma electron temperature determination based on the ratio of electron densities obtained from hydrogen Hα and Hβ spectral lines based on electron densities ratio obtained from hydrogen Hα and Hβ spectral lines is considered. In order to verify its validity, the method was applied to wall stabilized DC and pulsed arc plasmas together with three other methods. Temperature range was 9600–13,600 K. The values obtained by applying the method presented in this paper differ from the average values obtained from all methods for <6%. Results are also in good agreement with the newer theories of Stark broadening of hydrogen spectral lines.