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The INTEGRAL Spectrometer Thermal Control: Design, Validation and Performances After One Year In-Orbit
Technical Paper
2004-01-2358
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The INTERnational Gamma-Ray Astrophysics Laboratory (INTEGRAL) is an ESA observatory scientific satellite which was successfully launched on the 17th of October 2002. The payload consists in four instruments : an optical camera (OMC), a X-ray monitor (XRM), an imager (IBIS) and a spectrometer (SPI).
The spectrometer (20 keV-8 MeV energy range, 2.3 m high, 1.1 m diameter, around 1300 kg) has been supplied by CNES where this instrument has been managed, assembled and tested before delivery to ESA for satellite level activities.
This paper describes the spectrometer flight model thermal design achieved thanks to the different international partners, gives and overview of the cryostat used to cool down the detection plane and exposes the thermal validation plan used at instrument level (thermal mathematical model and thermal test philosophy, cryostat thermal validation). We then focus on in-flight performances and compare them to expected ones.
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Serène, F. and Briet, R., "The INTEGRAL Spectrometer Thermal Control: Design, Validation and Performances After One Year In-Orbit," SAE Technical Paper 2004-01-2358, 2004, https://doi.org/10.4271/2004-01-2358.Also In
References
- INTEGRAL spectrometer cryostat design and performances after 1.5 year in-orbit, Richard Briet, Fabienne Serène 13th International Cryocoolers Conference New Orleans March 2004
- INTEGRAL spectrometer thermal balance test Fabienne Serène, Richard Briet, Benjamin Pouilloux CNES, 30 th International Conference on Environmental Systems July 2000
- INTEGRAL Spectrometer Cryostat Design and STM Performances, Richard Briet CNES, Advances in cryogenic engineering 45–46 May 2000
- Thermal control of the INTEGRAL spectrometer SPI, Fabienne Lucantonio, Richard Briet CNES, 6 th European Symposium on Space Environment Control Systems May 1997