2010
Cooling system for the Soft X-ray Spectrometer (SXS) onboard ASTRO-H
SPACE TELESCOPES AND INSTRUMENTATION 2010: ULTRAVIOLET TO GAMMA RAY
- Volume
- 7732
- Number
- 9
- First page
- 488
- Last page
- 493
- Language
- English
- Publishing type
- Research paper (international conference proceedings)
- DOI
- 10.1117/12.856909
- Publisher
- SPIE-INT SOC OPTICAL ENGINEERING
The Soft X-ray Spectrometer (SXS) is a cryogenic high resolution X-ray spectrometer onboard the X-ray astronomy satellite ASTRO-H. The detector array is cooled down to 50 mK using a 3-stage adiabatic demagnetization refrigerator (ADR). The cooling chain from room temperature to the ADR heat-sink is composed of superfluid liquid He, a He-4 Joule-Thomson cryocooler, and 2-stage Stirling cryocoolers. It is designed to keep 30 L of liquid He for more than 3 years in the nominal case. It is also designed with redundant subsystems throughout from room temperature to the ADR heat-sink, to alleviate failure of a single cryocooler or loss of liquid He.
- Link information
- ID information
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- DOI : 10.1117/12.856909
- ISSN : 0277-786X
- Web of Science ID : WOS:000285506200110