1 November 1990 Analysis and interpretation of Wide-Field Planetary Camera outgas data collected in the temperature range from -20°C to -100°C
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Abstract
The data from the Wide Field Planetary Camera (WFPC) are analyzed to determine the absolute source-emission parameters and contaminant reemission parameters of outgassing mass accumulation. The data correspond to the mass accumulated on a -100 C quartz crystal microbalance and then desorbed at -50 C as a function of time. The parameters investigated include contaminant mass, first-order rate constants, and characteristic energies. The data are modeled in terms of a minimum number of species characterized by source-rate and reemission-rate parameters. The modeling technique is found to produce adequate fits, and the contaminants that accumulate at -100 C and desorb at -50 C do not accumulate at -50 C. The data analysis is found to be an adequate technique for assessing outgassing parameters for the prediction of WFPC internal contamination.
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Jack B. Barengoltz, Jack B. Barengoltz, Daniel M. Taylor, Daniel M. Taylor, "Analysis and interpretation of Wide-Field Planetary Camera outgas data collected in the temperature range from -20°C to -100°C", Proc. SPIE 1329, Optical System Contamination: Effects, Measurement, Control II, (1 November 1990); doi: 10.1117/12.22591; https://doi.org/10.1117/12.22591
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