Simons Observatory: Characterization of the Large Aperture Telescope Receiver
The Simons Observatory (SO) is a ground-based cosmic microwave background (CMB) survey experiment that currently consists of three 0.42 m small-aperture telescopes and one 6 m large-aperture telescope (LAT), located at an elevation of 5200 m in the Atacama Desert in Chile. At the LAT’s focal plane,...
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2025-01-01
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| Online Access: | https://doi.org/10.3847/1538-4365/ade0bd |
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| author | Tanay Bhandarkar Saianeesh K. Haridas Jeff Iuliano Anna Kofman Alex Manduca Karen Perez Sarmiento John Orlowski-Scherer Thomas P. Satterthwaite Yuhan Wang Zeeshan Ahmed Jason E. Austermann Kyuyoung Bae Gabriele Coppi Mark J. Devlin Simon R Dicker Peter N. Dow Shannon M. Duff Daniel Dutcher Nicholas Galitzki Jon E. Gudmundsson Shawn W. Henderson Johannes Hubmayr Bradley R. Johnson Matthew A. Koc Brian J. Koopman Michele Limon Michael J Link Tammy J. Lucas Jenna E. Moore Federico Nati Michael D. Niemack Carlos E. Sierra Max Silva-Feaver Robinjeet Singh Rita F. Sonka Suzanne T. Staggs Robert J. Thornton Tran Tsan Jeff L. Van Lanen Eve M. Vavagiakis Michael R Vissers Liam Walters Mario Zannoni Kaiwen Zheng |
| author_facet | Tanay Bhandarkar Saianeesh K. Haridas Jeff Iuliano Anna Kofman Alex Manduca Karen Perez Sarmiento John Orlowski-Scherer Thomas P. Satterthwaite Yuhan Wang Zeeshan Ahmed Jason E. Austermann Kyuyoung Bae Gabriele Coppi Mark J. Devlin Simon R Dicker Peter N. Dow Shannon M. Duff Daniel Dutcher Nicholas Galitzki Jon E. Gudmundsson Shawn W. Henderson Johannes Hubmayr Bradley R. Johnson Matthew A. Koc Brian J. Koopman Michele Limon Michael J Link Tammy J. Lucas Jenna E. Moore Federico Nati Michael D. Niemack Carlos E. Sierra Max Silva-Feaver Robinjeet Singh Rita F. Sonka Suzanne T. Staggs Robert J. Thornton Tran Tsan Jeff L. Van Lanen Eve M. Vavagiakis Michael R Vissers Liam Walters Mario Zannoni Kaiwen Zheng |
| author_sort | Tanay Bhandarkar |
| collection | DOAJ |
| description | The Simons Observatory (SO) is a ground-based cosmic microwave background (CMB) survey experiment that currently consists of three 0.42 m small-aperture telescopes and one 6 m large-aperture telescope (LAT), located at an elevation of 5200 m in the Atacama Desert in Chile. At the LAT’s focal plane, SO will install >62,000 transition-edge sensor detectors across 13 optics tubes (OTs) within the Large Aperture Telescope Receiver (LATR), the largest cryogenic camera ever built to observe the CMB. Here we report on the validation of the LATR in the laboratory and the subsequent dark testing and validation within the LAT. We show that the LATR meets cryogenic, optical, and detector specifications required for high-sensitivity measurements of the CMB. At the time of writing, the LATR is installed in the LAT with six OTs (corresponding to >31,000 detectors), and the LAT mirrors and remaining seven OTs are undergoing development. |
| format | Article |
| id | doaj-art-f904dff1dadd4c84a5bb9370b8fa2aed |
| institution | Kabale University |
| issn | 0067-0049 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
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| series | The Astrophysical Journal Supplement Series |
| spelling | doaj-art-f904dff1dadd4c84a5bb9370b8fa2aed2025-08-20T03:50:58ZengIOP PublishingThe Astrophysical Journal Supplement Series0067-00492025-01-0127923410.3847/1538-4365/ade0bdSimons Observatory: Characterization of the Large Aperture Telescope ReceiverTanay Bhandarkar0https://orcid.org/0000-0002-2971-1776Saianeesh K. Haridas1https://orcid.org/0000-0001-6519-502XJeff Iuliano2https://orcid.org/0000-0001-7466-0317Anna Kofman3https://orcid.org/0000-0001-5374-1767Alex Manduca4https://orcid.org/0000-0003-4629-5759Karen Perez Sarmiento5John Orlowski-Scherer6https://orcid.org/0000-0003-1842-8104Thomas P. Satterthwaite7https://orcid.org/0000-0002-6452-4220Yuhan Wang8https://orcid.org/0000-0002-8710-0914Zeeshan Ahmed9https://orcid.org/0000-0002-9957-448XJason E. Austermann10https://orcid.org/0000-0002-6338-0069Kyuyoung Bae11https://orcid.org/0000-0002-3376-8660Gabriele Coppi12https://orcid.org/0000-0002-6362-6524Mark J. Devlin13https://orcid.org/0000-0002-3169-9761Simon R Dicker14https://orcid.org/0000-0002-1940-4289Peter N. Dow15https://orcid.org/0009-0006-8427-6259Shannon M. Duff16https://orcid.org/0000-0002-9693-4478Daniel Dutcher17https://orcid.org/0000-0002-9962-2058Nicholas Galitzki18https://orcid.org/0000-0001-7225-6679Jon E. Gudmundsson19https://orcid.org/0000-0003-1760-0355Shawn W. Henderson20https://orcid.org/0000-0001-7878-4229Johannes Hubmayr21https://orcid.org/0000-0002-2781-9302Bradley R. Johnson22https://orcid.org/0000-0002-6898-8938Matthew A. Koc23https://orcid.org/0000-0003-1401-8415Brian J. Koopman24https://orcid.org/0000-0003-0744-2808Michele Limon25https://orcid.org/0000-0002-5900-2698Michael J Link26https://orcid.org/0000-0003-2381-1378Tammy J. Lucas27https://orcid.org/0000-0001-7694-1999Jenna E. Moore28https://orcid.org/0000-0002-7340-9291Federico Nati29https://orcid.org/0000-0002-8307-5088Michael D. Niemack30https://orcid.org/0000-0001-7125-3580Carlos E. Sierra31https://orcid.org/0000-0002-9246-5571Max Silva-Feaver32https://orcid.org/0000-0001-7480-4341Robinjeet Singh33https://orcid.org/0000-0003-2893-9039Rita F. Sonka34https://orcid.org/0000-0002-1187-9781Suzanne T. Staggs35https://orcid.org/0000-0002-7020-7301Robert J. Thornton36https://orcid.org/0000-0002-3180-674XTran Tsan37https://orcid.org/0000-0002-1667-2544Jeff L. Van Lanen38Eve M. Vavagiakis39https://orcid.org/0000-0002-2105-7589Michael R Vissers40https://orcid.org/0000-0003-2467-7801Liam Walters41https://orcid.org/0000-0002-8309-8298Mario Zannoni42https://orcid.org/0000-0002-4495-571XKaiwen Zheng43https://orcid.org/0000-0003-4645-7084Department of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USADepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USADepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USADepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USA; Department of Astronomy and Astrophysics, University of Chicago , Chicago, IL 60637, USADepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USADepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USADepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USADepartment of Physics, Stanford University , Stanford, CA 94305, USA; Kavli Institute for Particle Astrophysics and Cosmology , Stanford, CA 94305, USADepartment of Physics, Cornell University , Ithaca, NY 14853, USAKavli Institute for Particle Astrophysics and Cosmology , Stanford, CA 94305, USA; SLAC National Accelerator Laboratory , Menlo Park, CA 94025, USANational Institute of Standards and Technology , Quantum Sensors Division, 325 Broadway, Boulder, CO 80305, USANational Institute of Standards and Technology , Quantum Sensors Division, 325 Broadway, Boulder, CO 80305, USA; Department of Physics, University of Colorado , Boulder, CO 80309, USADepartment of Physics, University of Milano-Bicocca , Milano, Italy; Istituto Nazionale di Fisica Nucleare , INFN, Sezione Milano-Bicocca, ItalyDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USADepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USADepartment of Astronomy, University of Virginia , 530 McCormick Road, Charlottesville, VA 22904, USANational Institute of Standards and Technology , Quantum Sensors Division, 325 Broadway, Boulder, CO 80305, USADepartment of Physics, Princeton University , Princeton, NJ 08540, USADepartment of Physics, University of Texas at Austin , Austin, TX 78712, USA; Weinberg Institute for Theoretical Physics , Texas Center for Cosmology and Astroparticle Physics, Austin, TX 78712, USAScience Institute, University of Iceland , 107 Reykjavik, Iceland; The Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova, SE-10691 Stockholm, SwedenKavli Institute for Particle Astrophysics and Cosmology , Stanford, CA 94305, USA; SLAC National Accelerator Laboratory , Menlo Park, CA 94025, USANational Institute of Standards and Technology , Quantum Sensors Division, 325 Broadway, Boulder, CO 80305, USADepartment of Astronomy, University of Virginia , 530 McCormick Road, Charlottesville, VA 22904, USANational Institute of Standards and Technology , Quantum Sensors Division, 325 Broadway, Boulder, CO 80305, USA; Department of Physics, University of Colorado , Boulder, CO 80309, USAWright Laboratory, Department of Physics, Yale University , New Haven, CT 06511, USADepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USANational Institute of Standards and Technology , Quantum Sensors Division, 325 Broadway, Boulder, CO 80305, USANational Institute of Standards and Technology , Quantum Sensors Division, 325 Broadway, Boulder, CO 80305, USADepartment of Physics, Duke University , Durham, NC 27708, USADepartment of Physics, University of Milano-Bicocca , Milano, MI 20126, ItalyDepartment of Physics, Cornell University , Ithaca, NY 14853, USADepartment of Physics, Stanford University , Stanford, CA 94305, USA; Kavli Institute for Particle Astrophysics and Cosmology , Stanford, CA 94305, USAWright Laboratory, Department of Physics, Yale University , New Haven, CT 06511, USANational Institute of Standards and Technology , Quantum Sensors Division, 325 Broadway, Boulder, CO 80305, USA; Department of Physics, University of Colorado , Boulder, CO 80309, USADepartment of Physics, Princeton University , Princeton, NJ 08540, USADepartment of Physics, Princeton University , Princeton, NJ 08540, USADepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USA; Department of Physics, West Chester University of Pennsylvania , West Chester, PA 19383, USAPhysics Division, Lawrence Berkeley National Laboratory , Berkeley, CA 94720, USANational Institute of Standards and Technology , Quantum Sensors Division, 325 Broadway, Boulder, CO 80305, USADepartment of Physics, Cornell University , Ithaca, NY 14853, USA; Department of Physics, Duke University , Durham, NC 27708, USANational Institute of Standards and Technology , Quantum Sensors Division, 325 Broadway, Boulder, CO 80305, USADepartment of Astronomy, University of Virginia , 530 McCormick Road, Charlottesville, VA 22904, USADepartment of Physics, University of Milano-Bicocca , Milano, ItalyDepartment of Physics, Princeton University , Princeton, NJ 08540, USAThe Simons Observatory (SO) is a ground-based cosmic microwave background (CMB) survey experiment that currently consists of three 0.42 m small-aperture telescopes and one 6 m large-aperture telescope (LAT), located at an elevation of 5200 m in the Atacama Desert in Chile. At the LAT’s focal plane, SO will install >62,000 transition-edge sensor detectors across 13 optics tubes (OTs) within the Large Aperture Telescope Receiver (LATR), the largest cryogenic camera ever built to observe the CMB. Here we report on the validation of the LATR in the laboratory and the subsequent dark testing and validation within the LAT. We show that the LATR meets cryogenic, optical, and detector specifications required for high-sensitivity measurements of the CMB. At the time of writing, the LATR is installed in the LAT with six OTs (corresponding to >31,000 detectors), and the LAT mirrors and remaining seven OTs are undergoing development.https://doi.org/10.3847/1538-4365/ade0bdCosmic microwave background radiationCosmic background radiationCMBR detectorsAstronomical instrumentation |
| spellingShingle | Tanay Bhandarkar Saianeesh K. Haridas Jeff Iuliano Anna Kofman Alex Manduca Karen Perez Sarmiento John Orlowski-Scherer Thomas P. Satterthwaite Yuhan Wang Zeeshan Ahmed Jason E. Austermann Kyuyoung Bae Gabriele Coppi Mark J. Devlin Simon R Dicker Peter N. Dow Shannon M. Duff Daniel Dutcher Nicholas Galitzki Jon E. Gudmundsson Shawn W. Henderson Johannes Hubmayr Bradley R. Johnson Matthew A. Koc Brian J. Koopman Michele Limon Michael J Link Tammy J. Lucas Jenna E. Moore Federico Nati Michael D. Niemack Carlos E. Sierra Max Silva-Feaver Robinjeet Singh Rita F. Sonka Suzanne T. Staggs Robert J. Thornton Tran Tsan Jeff L. Van Lanen Eve M. Vavagiakis Michael R Vissers Liam Walters Mario Zannoni Kaiwen Zheng Simons Observatory: Characterization of the Large Aperture Telescope Receiver The Astrophysical Journal Supplement Series Cosmic microwave background radiation Cosmic background radiation CMBR detectors Astronomical instrumentation |
| title | Simons Observatory: Characterization of the Large Aperture Telescope Receiver |
| title_full | Simons Observatory: Characterization of the Large Aperture Telescope Receiver |
| title_fullStr | Simons Observatory: Characterization of the Large Aperture Telescope Receiver |
| title_full_unstemmed | Simons Observatory: Characterization of the Large Aperture Telescope Receiver |
| title_short | Simons Observatory: Characterization of the Large Aperture Telescope Receiver |
| title_sort | simons observatory characterization of the large aperture telescope receiver |
| topic | Cosmic microwave background radiation Cosmic background radiation CMBR detectors Astronomical instrumentation |
| url | https://doi.org/10.3847/1538-4365/ade0bd |
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