The continuous adiabatic demagnetization refrigerator for the probe far-infrared mission for astrophyiscs (PRIMA)

Michael DiPirro; Peter Shirron; Amir Jahromi; Mark Kimball; Shuvo Mustafi; Weibo Chen; Brad Moore

doi:10.1117/12.3020300

23 August 2024 The continuous adiabatic demagnetization refrigerator for the probe far-infrared mission for astrophyiscs (PRIMA)

Michael DiPirro, Peter Shirron, Amir Jahromi, Mark Kimball, Shuvo Mustafi, Weibo Chen, Brad Moore

Author Affiliations +

Proceedings Volume 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave; 130923A (2024) https://doi.org/10.1117/12.3020300
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

The Probe far-Infrared Mission for Astrophysics (PRIMA) contains two instruments: an imager (PRIMAGER) and a multi-band spectrometer (FIRESS). These two instruments require detector cooling to 100 mK and require parts of the optical train to operate at 1.0 K. From a base temperature of 4.5 K, provided by a JWST-like cryocooler, a 5-stage Continuous Adiabatic Demagnetization Refrigerator (CADR) will provide this cooling to both instruments. The PRIMA CADR is based on heritage parts from the Hitomi and the X-Ray Imaging and Spectroscopy Mission (XRISM) ADRs and from recent Strategic Astrophysics Technology (SAT)-developed hardware. The CADR will provide 700 microW of lift at 1.0 K and 9 microW of lift at 100 mK to meet the two instruments (PRIMAGER and FIRESS) cooling requirements with a factor of 2 margin. The CADR is designed to reject a maximum of 8 mW at the 4.5 K cryocooler heat sink. This paper will describe the CADR, its requirements, its operation, and its heritage.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Michael DiPirro, Peter Shirron, Amir Jahromi, Mark Kimball, Shuvo Mustafi, Weibo Chen, and Brad Moore "The continuous adiabatic demagnetization refrigerator for the probe far-infrared mission for astrophyiscs (PRIMA)", Proc. SPIE 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 130923A (23 August 2024); https://doi.org/10.1117/12.3020300

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