Characterization and performance of the second-year SPT-3G focal plane

Avva, Jessica S., Ade, Peter A. R. ORCID: https://orcid.org/0000-0002-5127-0401, Anderson, Adam J., Dutcher, Daniel, Guns, Sam T., Quan, Wei, Gallicchio, Jason, Young, Matt R., Yoon, Ki Won, Yefremenko, Volodymyr G., Whitehorn, Nathan, Wang, Gensheng, Vieira, Joaquin D., Vanderlinde, Keith, Tucker, Carole ORCID: https://orcid.org/0000-0002-1851-3918, Thompson, Keith L., Suzuki, Aritoki, Story, Kyle T., Stark, Antony A., Sobrin, Joshua A., Smecher, Graeme, Shirokoff, Erik, Sayre, James T., Ruhl, John E., Rahlin, Alexandra, Posada, Chrystian M., Pearson, John, Pan, Zhaodi, Padin, Stephen, Novosad, Valentine, Noble, Gavin I., Nguyen, Hogan, Natoli, Tyler, Nadolski, Andrew, Montgomery, Joshua, Michalik, Daniel, Meyer, Stephan S., Lowitz, Amy E., Lee, Adrian T., Kuo, Chao-Lin, Kuhlmann, Steve, Kubik, Donna L., Korman, Milo, Kofman, Anna M., Khaire, Trupti S., Jonas, Michelle, Jeong, Oliver B., Irwin, Kent D., Huang, Nicholas, Holzapfel, William L., Henning, Jason W., Harrington, Nicholas L., Harke-Hosemann, Angelina H., Halverson, Nils W., Groh, John C., Gilbert, Adam, Foster, Allen, Everett, Wendeline, Dobbs, Matthew A., Ding, Junjia, de Haan, Tijmen, Cukierman, Ari, Cliche, Jean-François, Chang, Clarence L., Cecil, Thomas W., Carter, Faustin W., Carlstrom, John E., Benson, Bradford A., Bender, Amy N., Thakur, Ritoban B. and Ahmed, Zeeshan 2018. Characterization and performance of the second-year SPT-3G focal plane. Presented at: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, TX, USA, 10-15 June 2018. Published in: Gao, Jian-Rong and Zmuidzinas, Jonas eds. Proceedings Volume 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX. SPIE, 107081Z. 10.1117/12.2312451

Full text not available from this repository.

Abstract

The third-generation instrument for the 10-meter South Pole Telescope, SPT-3G, was first installed in January 2017. In addition to completely new cryostats, secondary telescope optics, and readout electronics, the number of detectors in the focal plane has increased by an order of magnitude from previous instruments to ~16,000. The SPT-3G focal plane consists of ten detector modules, each with an array of 269 trichroic, polarization-sensitive pixels on a six-inch silicon wafer. Within each pixel is a broadband, dual-polarization sinuous antenna; the signal from each orthogonal linear polarization is divided into three frequency bands centered at 95, 150, and 220 GHz by in-line lumped element filters and transmitted via superconducting microstrip to Ti/Au transition-edge sensor (TES) bolometers. Properties of the TES film, microstrip filters, and bolometer island must be tightly controlled to achieve optimal performance. For the second year of SPT-3G operation, we have replaced all ten wafers in the focal plane with new detector arrays tuned to increase mapping speed and improve overall performance. Here we discuss the TES superconducting transition temperature and normal resistance, detector saturation power, bandpasses, optical efficiency, and full array yield for the 2018 focal plane.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Publisher:	SPIE
Last Modified:	02 Mar 2023 11:46
URI:	https://orca.cardiff.ac.uk/id/eprint/157430

Actions (repository staff only)

Edit Item