Accession Number : AD0766883

Title :   Thermophysical and Optical Evaluation of Heat Pipe Cooled Laser Mirrors.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s) : Raspet,David

Report Date : JUN 1973

Pagination or Media Count : 173

Abstract : A concept for cooling laser mirrors with the heat pipe process was evaluated with a 2-inch diameter copper mirror. The mirror was illuminated by a 67 watt/square centimeters incident beam from a 10 kilowatt carbon arc lamp. This beam provides 34.2 watts/squared centimeters to the water heat pipe. Reflecting surface temperature distributions were measured to assess heat pipe operation. Reflecting surface distortions were measured from the change in focal length. Despite a problem with obtaining good wetting of the copper capillary structure of the heat pipe by the water, the heat pipe demonstrated the ability to significantly reduce reflecting surface temperature gradients. (Author)

Descriptors :   (*INFRARED LASERS, COOLING), (*MIRRORS, COOLING), (*LASERS, MIRRORS), MANUFACTURING, ELECTRON BEAM WELDING, HEAT FLUX, HEAT TRANSFER, OPTICAL COATINGS, REFLECTIVITY, THESES, GAS LASERS

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE