Design and Performance of the SPT-SLIM Receiver Cryostat
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866912651615928320 |
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| author | Young, M. R. Adamic, M. Anderson, A. J. Barry, P. S. Benson, B. A. Benson, C. S. Brooks, E. Carlstrom, J. E. Cecil, T. Chang, C. L. Dibert, K. R. Dobbs, M. Fichman, K. Hollister, M. Karkare, K. S. Keating, G. K. Lapuente, A. M. Lisovenko, M. Marrone, D. P. Mitchell, D. Montgomery, J. Natoli, T. Pan, Z. Rahlin, A. Robson, G. Rouble, M. Smecher, G. Yefremenko, V. Yu, C. Zebrowski, J. A. Zhang, C. |
| author_facet | Young, M. R. Adamic, M. Anderson, A. J. Barry, P. S. Benson, B. A. Benson, C. S. Brooks, E. Carlstrom, J. E. Cecil, T. Chang, C. L. Dibert, K. R. Dobbs, M. Fichman, K. Hollister, M. Karkare, K. S. Keating, G. K. Lapuente, A. M. Lisovenko, M. Marrone, D. P. Mitchell, D. Montgomery, J. Natoli, T. Pan, Z. Rahlin, A. Robson, G. Rouble, M. Smecher, G. Yefremenko, V. Yu, C. Zebrowski, J. A. Zhang, C. |
| contents | 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 operating efficiency 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_14219 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Design and Performance of the SPT-SLIM Receiver Cryostat Young, M. R. Adamic, M. Anderson, A. J. Barry, P. S. Benson, B. A. Benson, C. S. Brooks, E. Carlstrom, J. E. Cecil, T. Chang, C. L. Dibert, K. R. Dobbs, M. Fichman, K. Hollister, M. Karkare, K. S. Keating, G. K. Lapuente, A. M. Lisovenko, M. Marrone, D. P. Mitchell, D. Montgomery, J. Natoli, T. Pan, Z. Rahlin, A. Robson, G. Rouble, M. Smecher, G. Yefremenko, V. Yu, C. Zebrowski, J. A. Zhang, C. Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics 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 operating efficiency 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. |
| title | Design and Performance of the SPT-SLIM Receiver Cryostat |
| topic | Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2510.14219 |