The Design and Integrated Performance of SPT-3G
Abstract
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 provide a powerful dataset for constraining cosmology. Additionally, CMB surveys with arcminute-scale resolution are capable of detecting galaxy clusters, millimeter-wave bright galaxies, and a variety of transient phenomena. The SPT-3G instrument provides a significant improvement in mapping speed over its predecessors, SPT-SZ and SPTpol. The broadband optics design of the instrument achieves a 430 mm diameter image plane across observing bands of 95 GHz, 150 GHz, and 220 GHz, with 1.2 arcmin FWHM beam response at 150 GHz. In the receiver, this image plane is populated with 2690 dual-polarization, tri-chroic pixels (~16000 detectors) read out using a 68X digital frequency-domain multiplexing readout system. In 2018, SPT-3G began a multiyear survey of 1500 deg of the southern sky. We summarize the unique optical, cryogenic, detector, and readout technologies employed in SPT-3G, and we report on the integrated performance of the instrument.
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Cite
@article{arxiv.2106.11202,
title = {The Design and Integrated Performance of SPT-3G},
author = {J. A. Sobrin and A. J. Anderson and A. N. Bender and B. A. Benson and D. Dutcher and A. Foster and N. Goeckner-Wald and J. Montgomery and A. Nadolski and A. Rahlin and P. A. R. Ade and Z. Ahmed and E. Anderes and M. Archipley and J. E. Austermann and J. S. Avva and K. Aylor and L. Balkenhol and P. S. Barry and R. Basu Thakur and K. Benabed and F. Bianchini and L. E. Bleem and F. R. Bouchet and L. Bryant and K. Byrum and J. E. Carlstrom and F. W. Carter and T. W. Cecil and C. L. Chang and P. Chaubal and G. Chen and H. -M. Cho and T. -L. Chou and J. -F. Cliche and T. M. Crawford and A. Cukierman and C. Daley and T. de Haan and E. V. Denison and K. Dibert and J. Ding and M. A. Dobbs and W. Everett and C. Feng and K. R. Ferguson and J. Fu and S. Galli and A. E. Gambrel and R. W. Gardner and R. Gualtieri and S. Guns and N. Gupta and R. Guyser and N. W. Halverson and A. H. Harke-Hosemann and N. L. Harrington and J. W. Henning and G. C. Hilton and E. Hivon and G. P. Holder and W. L. Holzapfel and J. C. Hood and D. Howe and N. Huang and K. D. Irwin and O. B. Jeong and M. Jonas and A. Jones and T. S. Khaire and L. Knox and A. M. Kofman and M. Korman and D. L. Kubik and S. Kuhlmann and C. -L. Kuo and A. T. Lee and E. M. Leitch and A. E. Lowitz and C. Lu and S. S. Meyer and D. Michalik and M. Millea and T. Natoli and H. Nguyen and G. I. Noble and V. Novosad and Y. Omori and S. Padin and Z. Pan and P. Paschos and J. Pearson and C. M. Posada and K. Prabhu and W. Quan and C. L. Reichardt and D. Riebel and B. Riedel and M. Rouble and J. E. Ruhl and B. Saliwanchik and J. T. Sayre and E. Schiappucci and E. Shirokoff and G. Smecher and A. A. Stark and J. Stephen and K. T. Story and A. Suzuki and C. Tandoi and K. L. Thompson and B. Thorne and C. Tucker and C. Umilta and L. R. Vale and K. Vanderlinde and J. D. Vieira and G. Wang and N. Whitehorn and W. L. K. Wu and V. Yefremenko and K. W. Yoon and M. R. Young},
journal= {arXiv preprint arXiv:2106.11202},
year = {2022}
}
Comments
25 pages, 11 figures. Accepted for publication in ApJS