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- W2300457983 abstract "Time resolved studies hexclamationve b%en made of both the vacuum ultraviolet (vuv) and the uv-visible radiation due to pulsed proton excitation of Ar--N/sub 2/, Ar--SF/sub 6/, and Ar--N/sub 2/--SF/sub 6/ mixtures. Photon emissions from Ar and from N/sub 2/ (due to energy transfer from Ar) were both studied, using time resolved spectroscopic techniques. In the Ar--N/sub 2/ mixtures the decay of N/sub 2/(C /sup 3/Pi/sub u/..-->..B /sup 3/Pi/sub g/) is much slower than the natural lifetime of N/sub 2/(C /sup 3/Pi/sub u/). In the case of the (0--1) band for the transition N/sub 2/(C /sup 3/Pi/sub u/..-->..B /sup 3/Pi/sub g/), the decay follows Ar(/sup 3/P/sub 2/); while the decay of the (3--1) band follows that of Ar(/sup 1/P/sub 1/). Decay rates of (1--0) and (2--1) are between the decay of Ar(/sup 1/P/sub 1/) and Ar(/sup 3/P/sub 2/). From least squares fitting, it was found that 68% of v'=2 of N/sub 2/(C /sup 3/Pi/sub u/) comes from Ar(/sup 1/P/sub 1/) and 32% from Ar(/sup 3/P/sub 2/); while 86% of v'=1 comes from Ar(/sup 3/P/sub 2/) and 14% from Ar(/sup 1/P/sub 1/). Since the energy precursor of N/sub 2/(C /sup 3/Pi/sub u/)/sub v//sub prime//sub 3/ is Ar(/sup 1/P/sub 1/), it is clearmore » that the Wigner spin conservation rule does not hold rigorously in this energy transfer process. Quenching rates of Ar(/sup 1/P/sub 1/), Ar(/sup 3/P/sub 2/), Ar(/sup 3/P/sub 1/) and Ar/sub 2/(1/sub u/) by SF/sub 6/ have also been determined. Gas laser applications are discussed briefly. (AIP)« less" @default.
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- W2300457983 date "1976-11-15" @default.
- W2300457983 modified "2023-09-22" @default.
- W2300457983 title "Kinetic studies of Ar--N/sub 2/--SF/sub 6/ mixtures following proton excitation" @default.
- W2300457983 hasPublicationYear "1976" @default.
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