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Frequency-domain multiplexing (fMux) is an established technique for the readout of large arrays of transition edge sensor (TES) bolometers. Each TES in a multiplexing module has a unique AC voltage bias that is selected by a resonant…

Frequency-domain multiplexing is a readout technique for transition edge sensor bolometer arrays used on modern CMB experiments, including the SPT-3G receiver. Here, we present design details and performance measurements for a low-parasitic…

SPT-3G is the third survey receiver operating on the South Pole Telescope dedicated to high-resolution observations of the cosmic microwave background (CMB). Sensitive measurements of the temperature and polarization anisotropies of the CMB…

Instrumentation and Methods for Astrophysics · Physics 2022-03-01 J. A. Sobrin , A. J. Anderson , A. N. Bender , B. A. Benson , D. Dutcher , A. Foster , N. Goeckner-Wald , J. Montgomery , A. Nadolski , A. Rahlin , P. A. R. Ade , Z. Ahmed , E. Anderes , M. Archipley , J. E. Austermann , J. S. Avva , K. Aylor , L. Balkenhol , P. S. Barry , R. Basu Thakur , K. Benabed , F. Bianchini , L. E. Bleem , F. R. Bouchet , L. Bryant , K. Byrum , J. E. Carlstrom , F. W. Carter , T. W. Cecil , C. L. Chang , P. Chaubal , G. Chen , H. -M. Cho , T. -L. Chou , J. -F. Cliche , T. M. Crawford , A. Cukierman , C. Daley , T. de Haan , E. V. Denison , K. Dibert , J. Ding , M. A. Dobbs , W. Everett , C. Feng , K. R. Ferguson , J. Fu , S. Galli , A. E. Gambrel , R. W. Gardner , R. Gualtieri , S. Guns , N. Gupta , R. Guyser , N. W. Halverson , A. H. Harke-Hosemann , N. L. Harrington , J. W. Henning , G. C. Hilton , E. Hivon , G. P. Holder , W. L. Holzapfel , J. C. Hood , D. Howe , N. Huang , K. D. Irwin , O. B. Jeong , M. Jonas , A. Jones , T. S. Khaire , L. Knox , A. M. Kofman , M. Korman , D. L. Kubik , S. Kuhlmann , C. -L. Kuo , A. T. Lee , E. M. Leitch , A. E. Lowitz , C. Lu , S. S. Meyer , D. Michalik , M. Millea , T. Natoli , H. Nguyen , G. I. Noble , V. Novosad , Y. Omori , S. Padin , Z. Pan , P. Paschos , J. Pearson , C. M. Posada , K. Prabhu , W. Quan , C. L. Reichardt , D. Riebel , B. Riedel , M. Rouble , J. E. Ruhl , B. Saliwanchik , J. T. Sayre , E. Schiappucci , E. Shirokoff , G. Smecher , A. A. Stark , J. Stephen , K. T. Story , A. Suzuki , C. Tandoi , K. L. Thompson , B. Thorne , C. Tucker , C. Umilta , L. R. Vale , K. Vanderlinde , J. D. Vieira , G. Wang , N. Whitehorn , W. L. K. Wu , V. Yefremenko , K. W. Yoon , M. R. Young

The South Pole Telescope (SPT) is a high-resolution microwave-frequency telescope designed to observe the Cosmic Microwave Background (CMB). To date, two cameras have been installed on the SPT to conduct two surveys of the CMB, the first in…

Instrumentation and Methods for Astrophysics · Physics 2016-01-22 Benjamin Saliwanchik

Frequency domain multiplexing (fMux) is an established technique for the readout of transition-edge sensor (TES) bolometers in millimeter-wavelength astrophysical instrumentation. In fMux, the signals from multiple detectors are read out on…

The South Pole Telescope (SPT) is a millimeter-wavelength telescope designed for high-precision measurements of the cosmic microwave background (CMB). The SPT measures both the temperature and polarization of the CMB with a large aperture,…

We present the detection and characterization of fluctuations in linearly polarized emission from the atmosphere above the South Pole. These measurements make use of data from the SPT-3G receiver on the South Pole Telescope in three…

We present the design and science goals of SPT-3G+, a new camera for the South Pole Telescope, which will consist of a dense array of 34100 kinetic inductance detectors measuring the cosmic microwave background (CMB) at 220 GHz, 285 GHz,…

Digital frequency multiplexing (dfMux) is a readout architecture for transition edge sensor-based detector arrays and is used on telescopes including SPT-3G, POLARBEAR-2, and LiteBIRD. Here, we present recent progress and plans for…

Instrumentation and Methods for Astrophysics · Physics 2018-07-17 Amy E. Lowitz , Amy N. Bender , Matthew A. Dobbs , Adam J. Gilbert

SPT-3G+ is the next-generation camera for the South Pole Telescope (SPT). SPT is designed to measure the cosmic microwave background (CMB) and the mm/sub-mm sky. The planned focal plane consists of 34,000 microwave kinetic inductance…

Instrumentation and Methods for Astrophysics · Physics 2025-03-25 E. S. Martsen , P. S. Barry , B. A. Benson , K. R. Dibert , K. N. Fichman , T. Natoli , M. Rouble , C. Yu

Precise measurements of cosmic microwave background polarization require rigorous control of instrumental systematics. For the South Pole Telescope's third-generation camera (SPT-3G), accurate characterization of the beam is critical for…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-09 T. de Haan , M. Archipley , N. Huang , A. J. Anderson , B. Ansarinejad , L. Balkenhol , D. R. Barron , K. Benabed , A. N. Bender , B. A. Benson , F. Bianchini , L. E. Bleem , S. Bocquet , F. R. Bouchet , L. Bryant , E. Camphuis , M. G. Campitiello , J. E. Carlstrom , J. Carron , C. L. Chang , P. Chaubal , P. M. Chichura , A. Chokshi , T. -L. Chou , A. Coerver , T. M. Crawford , C. Daley , K. R. Dibert , M. A. Dobbs , M. Doohan , A. Doussot , D. Dutcher , W. Everett , C. Feng , K. R. Ferguson , N. C. Ferree , K. Fichman , A. Foster , S. Galli , A. E. Gambrel , R. W. Gardner , F. Ge , N. Goeckner-Wald , R. Gualtieri , F. Guidi , S. Guns , N. W. Halverson , E. Hivon , A. Y. Q. Ho , G. P. Holder , W. L. Holzapfel , J. C. Hood , A. Hryciuk , F. Keruzore , A. R. Khalife , L. Knox , M. Korman , K. Kornoelje , C. -L. Kuo , K. Levy , Y. Li , A. E. Lowitz , C. Lu , G. P. Lynch , T. J. Maccarone , A. S. Maniyar , E. S. Martsen , F. Menanteau , M. Millea , J. Montgomery , Y. Nakato , T. Natoli , G. I. Noble , Y. Omori , A. Ouellette , Z. Pan , P. Paschos , K. A. Phadke , A. W. Pollak , K. Prabhu , W. Quan , M. Rahimi , A. Rahlin , C. L. Reichardt , M. Rouble , J. E. Ruhl , E. Schiappucci , A. C. Silva Oliveira , A. Simpson , J. A. Sobrin , A. A. Stark , J. Stephen , C. Tandoi , B. Thorne , C. Trendafilova , C. Umilta , J. D. Vieira , A. G. Vieregg , A. Vitrier , Y. Wan , N. Whitehorn , W. L. K. Wu , M. R. Young , J. A. Zebrowski

Digital Frequency-Domain Multiplexing (DfMux) is a technique that uses MHz superconducting resonators and Superconducting Quantum Interference Device (SQUID) arrays to read out sets of Transition Edge Sensors. DfMux has been used by several…

Advanced ACTPol is an instrument upgrade for the six-meter Atacama Cosmology Telescope (ACT) designed to measure the cosmic microwave background (CMB) temperature and polarization with arcminute-scale angular resolution. To achieve its…

The third-generation South Pole Telescope camera is designed to measure the cosmic microwave background across three frequency bands (95, 150 and 220 GHz) with ~16,000 transition-edge sensor (TES) bolometers. Each multichroic pixel on a…

We present details of the design, simulation, and initial test results of prototype detectors for the fourth-generation receiver of the South Pole Telescope (SPT). Optimized for the detection of key secondary anisotropies of the cosmic…

Instrumentation and Methods for Astrophysics · Physics 2022-06-29 Karia Dibert , Pete Barry , Zhaodi Pan , Adam Anderson , Bradford Benson , Clarence Chang , Kirit Karkare , Juliang Li , Tyler Natoli , Maclean Rouble , Erik Shirokoff , Antony Stark
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