Performance of Al-Mn Transition-Edge Sensor Bolometers in SPT-3G
Abstract
SPT-3G is a polarization-sensitive receiver, installed on the South Pole Telescope, that measures the anisotropy of the cosmic microwave background (CMB) from degree to arcminute scales. The receiver consists of ten 150~mm-diameter detector wafers, containing a total of 16,000 transition-edge sensor (TES) bolometers observing at 95, 150, and 220 GHz. During the 2018-2019 austral summer, one of these detector wafers was replaced by a new wafer fabricated with Al-Mn TESs instead of the Ti/Au design originally deployed for SPT-3G. We present the results of in-lab characterization and on-sky performance of this Al-Mn wafer, including electrical and thermal properties, optical efficiency measurements, and noise-equivalent temperature. In addition, we discuss and account for several calibration-related systematic errors that affect measurements made using frequency-domain multiplexing readout electronics.
Keywords
Cite
@article{arxiv.1907.11976,
title = {Performance of Al-Mn Transition-Edge Sensor Bolometers in SPT-3G},
author = {A. J. Anderson and P. A. R. Ade and Z. Ahmed and J. S. Avva and P. S. Barry and R. Basu Thakur and A. N. Bender and B. A. Benson and L. Bryant and K. Byrum and J. E. Carlstrom and F. W. Carter and T. W. Cecil and C. L. Chang and H. -M. Cho and J. F. Cliche and A. Cukierman and T. de Haan and E. V. Denison and J. Ding and M. A. Dobbs and D. Dutcher and W. Everett and K. R. Ferguson and A. Foster and J. Fu and J. Gallicchio and A. E. Gambrel and R. W. Gardner and A. Gilbert and J. C. Groh and S. Guns 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 W. L. Holzapfel 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 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 S. S. Meyer and D. Michalik and J. Montgomery and A. Nadolski and T. Natoli and H. Nguyen and G. I. Noble and V. Novosad and S. Padin and Z. Pan and P. Paschos and J. Pearson and C. M. Posada and W. Quan and A. Rahlin and D. Riebel and J. E. Ruhl and J. T. Sayre and E. Shirokoff and G. Smecher and J. A. Sobrin and A. A. Stark and J. Stephen and K. T. Story and A. Suzuki and K. L. Thompson and C. Tucker and L. R. Vale and K. Vanderlinde and J. D. Vieira and G. Wang and N. Whitehorn and V. Yefremenko and K. W. Yoon and M. R. Young},
journal= {arXiv preprint arXiv:1907.11976},
year = {2020}
}
Comments
9 pages, 5 figures, submitted to the Journal of Low Temperature Physics: LTD18 Special Edition