Laser-mirror cleaning in a simulated space environment

Details Laser-mirror cleaning in a simulated space environment Laser-mirror cleaning in a simulated space environment

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1329..134p&link_type=abstract

IN: Optical system contamination: Effects, measurement, control II; Proceedings of the Meeting, San Diego, CA, July 10-12, 1990

Statistics

Applications

Aerospace Environments, Cleaning, Computerized Simulation, Laser Applications, Mirrors, Spaceborne Lasers, Carbon Dioxide Lasers, Metal Coatings, Metal Surfaces, Pulsed Lasers

Scientific paper

The efficacy of pulsed CO2 lasers is demonstrated for remote removal of contaminants from cryogenic, low-scatter mirrors in a simulated space environment. A gold-overcoated, nickel-coated aluminum mirror was housed in a vacuum dewar and cooled to either 90 K with liquid nitrogen or 34 K with liquid-helium cryogen. Admitting a controlled leak of room-air contaminated the mirror. Bidirectionl reflectance distribution function (BRDF) measurements at 3, 6, and 9 deg monitored the amount of contamination on the mirror. Upon contamination, the mirror BRDF generally increased by an order of magnitude or more. Using an x-y scanner to raster a pulsed CO2-laser beam across the face of the mirror, successful cleaning of sizable areas (25 sq cm) of the mirror was demonstrated at both temperatures. In all cases the laser-cleaning technique returned the BRDF of the mirror to precontamination levels and showed no evidence for contaminant redeposition within the cleaned area.

Affiliated with

Also associated with

No associations

Rating

Laser-mirror cleaning in a simulated space environment does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Laser-mirror cleaning in a simulated space environment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser-mirror cleaning in a simulated space environment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-844466