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Electric Discharge Excitation and Energy Source Integration.
Final rept. 30 Jan 80-31 Dec 83,
SYSTEMS RESEARCH LABS INC DAYTON OH RESEARCH APPLICATIONS DIV
Pagination or Media Count:
Methods of transferring energy from electrical storage to an electro-negative gas discharge at high repetition rates of approx 1.5 kHz examined. The electrical-energy range of interest is 1 - 10 J. The XeC1 gas-discharge laser system is used as a representative discharge. Computer modleing of the pertinent kinetics of a HeXeHC1 gas mixture which was performed in conjunction with various configurations of pulse-forming networks is described gas thyratrons and magnetic switches were used as switching elements. Due to the relatively constant EN characterisitics of this system, a stripline arrangement is shown to provide the most efficient method of energy transfer for pulse lengths approx 50 nsec. Capacitor discharge methods are applicable to shorter pulse lengths. Construction of a closed-cycled, high-rep-rate XeC1 gas-discharge laser is described. Operation of an x-ray preionized system at 1.5 kHz is also detailed no contamination was observed in this configuration. The application of the XeC1 laser as a pump source for a high-rep-rate, high-average-power dye laser is also described. A flowing-dye jet was utilized in order to avoid liquid-cell boundary-layer problems of a fast-flow stream. The optical quality of the jet stream was the limiting factor in achieving the power goals. A method of achieving high efficiency in a rare-gas-halide system is proposed via a magnetic switch and prepulse arrangement in conjunctions with a stripline PFN. A high-efficiency pulse-charging source is also described. Keywords include Pulse power conditioning, Pulse-forming networks, Computer modeling, Electronegative gas discharge, Rare-gas-halide lasers, Dye lasers, and High-repetition-rate lasers.
APPROVED FOR PUBLIC RELEASE