Thermal Considerations for Meeting 20°C and Stringent Temperature Gradient Requirements of IXO SXT Mirror Modules 2009-01-2391
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.
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. Download Citation
Author(s):
Michael K. Choi
Pages: 9
Event:
International Conference On Environmental Systems
ISSN:
1946-3855
e-ISSN:
1946-3901
Also in:
SAE International Journal of Aerospace-V120-1, SAE International Journal of Aerospace-V120-1EJ
Related Topics:
Mirrors
Assembling
Telescopes
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