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Proceedings Paper

The influence of the space cryogenic environment on space payload
Author(s): Fan-jiao Tan; Fu-nian Long
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Paper 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.

Paper Details

Date Published: 15 August 2011
PDF: 12 pages
Proc. SPIE 8196, International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, 81960T (15 August 2011); doi: 10.1117/12.900156
Show Author Affiliations
Fan-jiao Tan, Harbin Institute of Technology (China)
Fu-nian Long, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 8196:
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications
John C. Zarnecki; Carl A. Nardell; Rong Shu; Jianfeng Yang; Yunhua Zhang, Editor(s)

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