20 August 2010 Preservation of thermal control specular gold baffle surface on the James Webb Space Telescope (JWST) integrated science instrument module (ISIM) electronics compartment (IEC)
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Abstract
Extremely tight thermal control property degradation allowances on the vapor-deposited, gold-coated IEC baffle surface, made necessary by the cryogenic JWST Observatory operations, dictate tight contamination requirements on adjacent surfaces. Theoretical degradation in emittance with contaminant thickness was calculated. Maximum allowable source outgassing rates were calculated using worst case view factors from source to baffle surface. Tight requirements pushed the team to change the design of the adjacent surfaces to minimize the outgassing sources.
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Kristina Montt de Garcia, Kristina Montt de Garcia, Jignasha Patel, Jignasha Patel, Radford Perry, Radford Perry, } "Preservation of thermal control specular gold baffle surface on the James Webb Space Telescope (JWST) integrated science instrument module (ISIM) electronics compartment (IEC)", Proc. SPIE 7794, Optical System Contamination: Effects, Measurements, and Control 2010, 779404 (20 August 2010); doi: 10.1117/12.864481; https://doi.org/10.1117/12.864481
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