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摘要
A specially designed pulsed discharge nozzle (PDN) ion source, a glow discharge pulsed supersonic jet, was constructed. The optical emission spectra of argon I and II in the region of 300-800 nm were observed and analyzed. The gas temperature of 3500 K and the ion one of 11 100 K were simulated by the Boltzmann plot method, and the electron density was simulated by Stark broadening of the H-alpha line. Owing to the big difference between the temperatures of Ar I and II, the plasma in the PDN is concluded to be in non-local thermodynamic equilibrium. The evolution of plasma parameters in the PDN was investigated also by using time-dependent emission spectra.
- 出版日期2013-9
- 单位中国科学院近代物理研究所
