Thermal Design for the Micro-X Rocket Payload
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Author(s)
Goldfinger, David C.
Figueroa-Feliciano, Enectali
Danowski, Meredith E
Heine, Sarah N.T.
Date Issued
February 2016
Journal
Journal of Low Temperature Physics
Publisher
Springer US
Citation
Goldfinger, D. C., E. Figueroa-Feliciano, M. Danowski, and S. N. T. Heine. “Thermal Design for the Micro-X Rocket Payload.” J Low Temp Phys 184, no. 3–4 (February 23, 2016): 699–705.
Version
Author's final manuscript
Abstract
Micro-X is a NASA funded, rocket borne X-ray imaging spectrometer that uses transition edge sensors (TESs) to do high-resolution microcalorimetry. The TESs are cooled by an adiabatic demagnetization refrigerator, whose salt pill functions as a heat sink for the detectors. We have made a thermal model of the cryostat with SPICE for the purposes of understanding its behavior at low temperatures. Implementing modifications based on this model has further allowed us to cool the system down to a lower temperature than had previously been accessible and to improve its low-temperature hold time. These modifications include a variety of schemes for power through heat sinks and tweaking the conductance between the cold baths and the refrigerated hardware. We present an overview of the model and its constituent parameters, information about thermal modifications, and a summary of results from thermal tests of the entire system.
MIT Department
Massachusetts Institute of Technology. Department of Physics
MIT Kavli Institute for Astrophysics and Space Research
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1007/s10909-016-1549-1
