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RF Discharge Laser Studies.
Final technical rept. 15 Nov 82-14 May 83,
POTOMAC RESEARCH INC ALEXANDRIA VA
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During the period 15 November 1982 - 14 December 1982 contract effort was primarily directed toward investigation of RF field penetration into a high-density, collisional plasma. This work was both experimental and theoretical. During the period 15 December 1982 - 14 January 1983 contract effort emphasized analysis of RF field penetration into plasma slabs bounded by dielectric sheets. During the period 15 January 1983 - 14 February 1983 effort on the contract was directed toward fabrication of a laser head for investigation of hydrogen halide transfer lasers using the 200 MHz pump source and reassembly and upgrading of the 1.2 GHz magnetron source. During the period 15 February 1983 -14 March 1983 project effort has emphasized investigation of nonchemical HF laser excitation using the 200 MHz RF source. Gas mixtures composed of He, H2, and HF at pressures in the 100 to 700 torr range were used in these experiments. During the period 15 March 1983 - 14 April 1983 a cooled discharge structure was fabricated for use with the 200 MHz source and upon RF testing of the high-power magnetron system. During the period 15 April 1983 - 14 May 1983 work was carried out on assembly of a cooled 200 MHz discharge structure and upgrading of the modulatorpulse forming network for the L-band magnetron to allow higher repetition rate operation and faster break-in. From 15 November 1982 to 14 May 1983. Progress was made on these fronts high-power magnetron source hydrogen halide laser experiments discharge plasma modeling and fluorescence measurements.
APPROVED FOR PUBLIC RELEASE