Small scale discharge studies. Semi-annual report 1 Sep 76--28 Feb 77
The dominant formation and quenching processes in e-beam pumped ArF* and KrF* lasers are discussed. The exciplexes are produced by irradiating Ar/F/sub 2/ and Ar/Kr/F/sub 2/ mixtures with a 5 A/cm/sup 2/, 150 keV e-beam. A steady state analysis is valid since the reaction times are short compared to the 300 nsec beam pulse length. The quenching of ArF* by F/sub 2/ and Ar has been measured by analyzing the ArF* fluorescence as a function of the F/sub 2/ and Ar partial pressures. The displacement of the Ar in ArF* by Kr to form KrF* was measured. The dominant quenching processes of KrF* were identified and the rate constants were measured. The ArF* and KrF* are formed from the ionic states with high efficiency. Interception of the precursers can be made negligible by choosing the experimental conditions properly. The quenching of KrF* by Ar and Kr is mainly a three body process resulting in the formation of Kr/sub 2/F*. The emission from Krt/sup 2/F* was observed in a broad band centered at 410 nm. The Kr/sub 2/F* is produced subsequent to the KrF* formation.
- Research Organization:
- Avco-Everett Research Lab., Everett, Mass. (USA)
- DOE Contract Number:
- N00014-75-C-0062
- OSTI ID:
- 6938766
- Report Number(s):
- AD-A-047221
- Country of Publication:
- United States
- Language:
- English
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