The influence of the space cryogenic environment on space payload

Fan-jiao Tan; Fu-nian Long

doi:10.1117/12.900156

15 August 2011 The influence of the space cryogenic environment on space payload

Fan-jiao Tan, Fu-nian Long

Proceedings Volume 8196, International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications; 81960T (2011) https://doi.org/10.1117/12.900156
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

Space payload is effected directly by space cryogenic environment, high radiation, etc. when working on orbit, especially large space payload a majority of which faces directly to formidable space nature condition. How to insure space payload working effectively on orbit is a key technology to space payload application technology. The papers starts from the optical system of a payload, to discuss the influence of optical system under the space cryogenic environment. Applying the law of optical imagery and the cryogenics thermodynamic method, and using Zernike polynomial coefficient to describe the changing of optical aberration on orbit and point spread function to evaluate the changing of performance of optical system. The papers optimizes the optical system of space payload by the means of temperature topology. From the data of final computation, by contrast to general optical system, for the same system, topological optic system can suit to more servers temperature condition that optical surface axial temperate grade is 5 to 10k, and can prove point spread function more than 0.2~0.3. so it can get the conclusion from analysis data that applying temperature topological optimization method can improve space payload optical quality by the mean of suiting to higher temperature grade, which more suit to space deep cryogenic environment. It gives model and data reference to extend space payload applying condition.

Citation Download Citation

Fan-jiao Tan and Fu-nian Long "The influence of the space cryogenic environment on space payload", Proc. SPIE 8196, International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, 81960T (15 August 2011); https://doi.org/10.1117/12.900156

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KEYWORDS

Cryogenics

Computing systems

Thermography

Aerospace engineering

Point spread functions

Thermal modeling

Imaging systems

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