@inproceedings{81c057ccf9d24f9380dace9ac30ec1d6,
title = "SPT-3G+: Mapping the high-frequency cosmic microwave background using kinetic inductance detectors",
abstract = "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, 285 and 345 GHz. The SPT-3G+ dataset will enable new constraints on the process of reionization, including measurements of the patchy kinematic Sunyaev-Zeldovich effect and improved constraints on the optical depth due to reionization. At the same time, it will serve as a pathfinder for the detection of Rayleigh scattering, which could allow future CMB surveys to constrain cosmological parameters better than from the primary CMB alone. In addition, the combined, multi-band SPT-3G and SPT-3G+ survey data, will have several synergies that enhance the original SPT-3G survey, including: extending the redshift-reach of SZ cluster surveys to z > 2; understanding the relationship between magnetic fields and star formation in our Galaxy; improved characterization of the impact of dust on inflationary B-mode searches; and characterizing astrophysical transients at the boundary between mm and sub-mm wavelengths. Finally, the modular design of the SPT-3G+ camera allows it to serve as an on-sky demonstrator for new detector technologies employing microwave readout, such as the on-chip spectrometers that we expect to deploy during the SPT-3G+ survey. In this paper, we describe the science goals of the project and the key technology developments that enable its powerful yet compact design.",
keywords = "Kinematic Sunyaev-Zeldovich effect, Kinetic inductance detectors, South Pole Telescope, cosmic microwave background",
author = "Anderson, \{A. J.\} and P. Barry and Bender, \{A. N.\} and Benson, \{B. A.\} and Bleem, \{L. E.\} and Carlstrom, \{J. E.\} and Cecil, \{T. W.\} and Chang, \{C. L.\} and Crawford, \{T. M.\} and Dibert, \{K. R.\} and Dobbs, \{M. A.\} and K. Fichman and Halverson, \{N. W.\} and Holzapfel, \{W. L.\} and A. Hryciuk and Karkare, \{K. S.\} and J. Li and M. Lisovenko and D. Marrone and J. McMahon and J. Montgomery and T. Natoli and Z. Pan and S. Raghunathan and Reichardt, \{C. L.\} and M. Rouble and E. Shirokoff and G. Smecher and Stark, \{A. A.\} and Vieira, \{J. D.\} and Young, \{M. R.\}",
note = "Publisher Copyright: {\textcopyright} 2022 SPIE.; Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI 2022 ; Conference date: 17-07-2022 Through 22-07-2022",
year = "2022",
doi = "10.1117/12.2629755",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Jonas Zmuidzinas and Jian-Rong Gao",
booktitle = "Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI",
}