Thermophysical and Optical Evaluation of Heat Pipe Cooled Laser Mirrors.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1973
- Accession Number
- AD0766883
Entities
People
- David Raspet
Organizations
- Air Force Institute of Technology