Thermodynamic performance of the 3-stage ADR for the Astro-H Soft-X-ray Spectrometer instrument
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- 作者：Peter J. Shirron ; Mark O. Kimball ; Bryan L. James ; Theodore Muench ; Michael J. DiPirro ; Thomas G. Bialas ; Gary A. Sneiderman ; Frederick S. Porter ; Richard L. Kelley
- 关键词：Space cryogenics ; Astronomy ; Adiabatic demagnetization refrigerator ; Magnetic refrigeration ; Low temperature detectors
- 刊名：Cryogenics
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：74
- 期：Complete
- 页码：24-30
- 全文大小：924 K
文摘
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A 3-stage ADR has been built for the Soft X-ray Spectrometer on Astro-H.
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The ADR operates with either a superfluid helium tank or a 4.5 K Joule–Thomson cryocooler as a heat sink.
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The ADR has been extensively tested in both cryogen and cryogen-free modes.
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A thermodynamic assessment of its performance is presented.
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The assessment includes cooling capacities and cooling power, as well as heat rejection and efficiency.