Thermal Cycling Effects On The BRDF Of Beryllium Mirrors

Robert C. Sullivan; Ramesh Patel; Brian Murray

doi:10.1117/12.962854

2 January 1990 Thermal Cycling Effects On The BRDF Of Beryllium Mirrors

Robert C. Sullivan, Ramesh Patel, Brian Murray

Proceedings Volume 1165, Scatter from Optical Components; (1990) https://doi.org/10.1117/12.962854
Event: 33rd Annual Technical Symposium, 1989, San Diego, United States

Abstract

The effects of extreme changes in temperature on the Bi-directional Reflectance Distribution Function (BRDF) of beryllium mirrors have been observed and measured using an unique infrared (10.6-micron) scatterometer [1]. This paper describes the experimental apparatus and procedures, qualifies its accuracy and repeatability, and presents the BRDF data taken on two Be mirrors, at 300 K and 20 K, during repeated thermal cycling.

Citation Download Citation

Robert C. Sullivan, Ramesh Patel, and Brian Murray "Thermal Cycling Effects On The BRDF Of Beryllium Mirrors", Proc. SPIE 1165, Scatter from Optical Components, (2 January 1990); https://doi.org/10.1117/12.962854

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