BRDF measurements for contamination assessment in a spacecraft environment

Timothy L. Howard; Patricia M. Beauchamp; Robert F. Fisher

doi:10.1117/12.22609

1 November 1990 BRDF measurements for contamination assessment in a spacecraft environment

Timothy L. Howard, Patricia M. Beauchamp, Robert F. Fisher

Proceedings Volume 1329, Optical System Contamination: Effects, Measurement, Control II; (1990) https://doi.org/10.1117/12.22609
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

Abstract

The design of a scatterometer used for in situ studies of optical surface contamination is reviewed, and dual-wavelength (0.633, 10.6 micron) BRDF measurements are presented which were made on molecular contaminants adsorbed onto cryogenically cooled mirrors. The results are compared to others obtained from the literature, and the BRDF increase from contaminants is analyzed using a simple theory based on Rayleigh scattering.

Citation Download Citation

Timothy L. Howard, Patricia M. Beauchamp, and Robert F. Fisher "BRDF measurements for contamination assessment in a spacecraft environment", Proc. SPIE 1329, Optical System Contamination: Effects, Measurement, Control II, (1 November 1990); https://doi.org/10.1117/12.22609

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