Thermal Considerations for Meeting 20°C and Stringent Temperature Gradient Requirements of IXO SXT Mirror Modules

Event
International Conference On Environmental Systems
Authors Abstract
Content
The Soft X-Ray Telescope (SXT) is an instrument on the International X-Ray Observatory (IXO). Its flight mirror assembly (FMA) has a single mirror configuration that includes a 3.3 m diameter and 0.93 m tall mirror assembly. It consists of 24 outer modules, 24 middle modules and 12 inner modules. Each module includes more than 200 mirror segments. There are a total of nearly 14, 000 mirror segments. The operating temperature requirement of the SXT FMA is 20°C. The spatial temperature gradient requirement between the FMA modules is ±1°C or smaller. The spatial temperature gradient requirement within a module is ±0.5°C. This paper presents thermal design considerations to meet these stringent thermal requirements.
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DOI
https://doi.org/10.4271/2009-01-2391
Pages
9
Citation
Choi, M., "Thermal Considerations for Meeting 20°C and Stringent Temperature Gradient Requirements of IXO SXT Mirror Modules," SAE Int. J. Aerosp. 4(1):201-209, 2011, https://doi.org/10.4271/2009-01-2391.
Additional Details
Publisher
Published
Jul 12, 2009
Product Code
2009-01-2391
Content Type
Journal Article
Language
English