Abstract
Measurements have been made of the absorptance and thermal emittance of gold, copper, silver, and nickel, in the temperature range from 200°K to 400°K, under conditions simulating outer space. Over this temperature range the rate of change of temperature, as a function of σT4, is not linear in either the heating cycle or the cooling cycle. The experimental data were fitted to a cubic equation by a least-squares technique. The standard heat balance equation was then used to calculate absorptance, emittance, and their ratios.
© 1964 Optical Society of America
Full Article | PDF ArticleMore Like This
Henry H. Blau and John R. Jasperse
Appl. Opt. 3(2) 281-285 (1964)
Osamu Kamada
Appl. Opt. 3(12) 1397-1400 (1964)
K. G. Ramanathan and S. H. Yen
J. Opt. Soc. Am. 67(1) 32-38 (1977)