Young, M. R, Adamic, M., Anderson, A. J., Barry, P. S., Benson, B. A., Benson, C. S. and Robson, G.
2026.
Design and performance of the SPT-SLIM receiver cryostat.
IEEE Transactions on Applied Superconductivity
36
(6)
, 2502006.
10.1109/tasc.2026.3678830
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Abstract
The South Pole Telescope Shirokoff Line Intensity Mapper (SPT-SLIM) is a millimeter-wavelength line-intensity mapping experiment, which was deployed on the South Pole Telescope (SPT) during the 2024-2025 Austral summer season. This pathfinder experiment serves to demonstrate the on-sky operation of multi-pixel on-chip spectrometer technology. We report on the cryogenic performance of the SPT-SLIM receiver for the first year of commissioning observations. The SPT-SLIM receiver utilizes an Adiabatic Demagnetization Refrigerator (ADR) for cooling the focal plane of superconducting filterbank spectrometers to a temperature of 150 mK. We demonstrate stable thermal performance of the focal plane module during observations consistent with thermal modeling, enabling a cryogenic duty cycle above 80%. We also report on the receiver control system design utilizing the Observatory Control System (OCS) platform for automated cryogenic operation on the SPT.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Physics and Astronomy |
| Additional Information: | Full author list available at https://doi.org/10.1109/TASC.2026.3678830 |
| Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
| ISSN: | 1051-8223 |
| Date of First Compliant Deposit: | 16 June 2026 |
| Date of Acceptance: | 27 February 2026 |
| Last Modified: | 01 Aug 2026 23:45 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/186223 |
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