Yu Shusheng, Lou Qihong, Du Longlang. Experimental study of UV preionization in CO2 laser medium[J]. Chinese Journal of Lasers, 1987, 14(10): 586
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UV preionization of pure He, Ng; Ar, NV and CO2 laser gas mixture were studied, by means. of a modified coaxial probe as positive probe. The experimental result shows that the photoelectron densities are increased by adding- moderate amqunts of tripropylanmine ia CO2 laser gas mixture.