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Title: Design and Assembly of SPT-3G Cold Readout Hardware

Abstract

The third- generation upgrade to the receiver on the South Pole Telescope, SPT- 3G, was installed at the South Pole during the 2016- 2017 austral summer to measure the polarization of the cosmic microwave background. Increasing the number of detectors by a factor of 10 to 16, 000 required the multiplexing factor to increase to 68 and the bandwidth of the frequency- division readout electronics to span 1.6- 5.2 MHz. This increase necessitates low- thermal conductance, low- inductance cryogenic wiring. Our cold readout system consists of planar thin- film aluminum inductive- capacitive resonators, wired in series with the detectors, summed together, and connected to 4K SQUIDs by 10- mu m- thick niobium- titanium ( NbTi) broadsidecoupled striplines. Here, we present an overview of the cold readout electronics for SPT- 3G, including assembly details and characterization of electrical and thermal properties of the system. We report, for the NbTi striplines, values of R = 10 L = 21 +/- 1 nH, and C = 1.47 +/-. 02 nF. Additionally, the striplines' thermal conductivity is described by kA = 6.0 +/- 0.3 T 0.92 +/- 0.04 mu W mm K - 1. Finally, we provide projections for cross talk induced by parasiticmore » impedances from the stripline and find that the median value of percentage cross talk from leakage current is 0.22 and 0.09% from wiring impedance.« less

Authors:
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Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
National Science Foundation (NSF); Gordon and Betty Moore Foundation; Canadian Institute for Advanced Research (CIFAR); USDOE Office of Science - Office of High Energy Physics; Natural Sciences and Engineering Research Council of Canada (NSERC)
OSTI Identifier:
1481277
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Journal of Low Temperature Physics
Additional Journal Information:
Journal Volume: 193; Journal Issue: 3-4; Journal ID: ISSN 0022-2291
Publisher:
Plenum Press
Country of Publication:
United States
Language:
English
Subject:
SPT-3G; cosmic microwave background; frequency-division multiplexing

Citation Formats

Avva, J. S., Ade, P. A. R., Ahmed, Z., Anderson, A. J., Austermann, J. E., Thakur, R. Basu, Barron, D., Bender, A. N., Benson, B. A., Carlstrom, J. E., Carter, F. W., Cecil, T., Chang, C. L., Cliche, J. F., Cukierman, A., Denison, E. V., de Haan, T., Ding, J., Dobbs, M. A., Dutcher, D., Elleflot, T., Everett, W., Foster, A., Gannon, R. N., Gilbert, A., Groh, J. C., Halverson, N. W., Harke-Hosemann, A. H., Harrington, N. L., Hasegawa, M., Hattori, K., Henning, J. W., Hilton, G. C., Holzapfel, W. L., Hori, Y., Huang, N., Irwin, K. D., Jeong, O. B., Jonas, M., Khaire, T., Kofman, A. M., Korman, M., Kubik, D., Kuhlmann, S., Kuo, C. L., Lee, A. T., Lowitz, A. E., Meyer, S. S., Montgomery, J., Nadolski, A., Natoli, T., Nguyen, H., Nishino, H., Noble, G. I., Novosad, V., Padin, S., Pan, Z., Pearson, J., Posada, C. M., Rahlin, A., Rotermund, K., Ruhl, J. E., Saunders, L. J., Sayre, J. T., Shirley, I., Shirokoff, E., Smecher, G., Sobrin, J. A., Stark, A. A., Story, K. T., Suzuki, A., Tang, Q. Y., Thompson, K. L., Tucker, C., Vale, L. R., Vanderlinde, K., Vieira, J. D., Wang, G., Whitehorn, N., Yefremenko, V., Yoon, K. W., and Young, M. R. Design and Assembly of SPT-3G Cold Readout Hardware. United States: N. p., 2018. Web. doi:10.1007/s10909-018-1965-5.
Avva, J. S., Ade, P. A. R., Ahmed, Z., Anderson, A. J., Austermann, J. E., Thakur, R. Basu, Barron, D., Bender, A. N., Benson, B. A., Carlstrom, J. E., Carter, F. W., Cecil, T., Chang, C. L., Cliche, J. F., Cukierman, A., Denison, E. V., de Haan, T., Ding, J., Dobbs, M. A., Dutcher, D., Elleflot, T., Everett, W., Foster, A., Gannon, R. N., Gilbert, A., Groh, J. C., Halverson, N. W., Harke-Hosemann, A. H., Harrington, N. L., Hasegawa, M., Hattori, K., Henning, J. W., Hilton, G. C., Holzapfel, W. L., Hori, Y., Huang, N., Irwin, K. D., Jeong, O. B., Jonas, M., Khaire, T., Kofman, A. M., Korman, M., Kubik, D., Kuhlmann, S., Kuo, C. L., Lee, A. T., Lowitz, A. E., Meyer, S. S., Montgomery, J., Nadolski, A., Natoli, T., Nguyen, H., Nishino, H., Noble, G. I., Novosad, V., Padin, S., Pan, Z., Pearson, J., Posada, C. M., Rahlin, A., Rotermund, K., Ruhl, J. E., Saunders, L. J., Sayre, J. T., Shirley, I., Shirokoff, E., Smecher, G., Sobrin, J. A., Stark, A. A., Story, K. T., Suzuki, A., Tang, Q. Y., Thompson, K. L., Tucker, C., Vale, L. R., Vanderlinde, K., Vieira, J. D., Wang, G., Whitehorn, N., Yefremenko, V., Yoon, K. W., & Young, M. R. Design and Assembly of SPT-3G Cold Readout Hardware. United States. doi:10.1007/s10909-018-1965-5.
Avva, J. S., Ade, P. A. R., Ahmed, Z., Anderson, A. J., Austermann, J. E., Thakur, R. Basu, Barron, D., Bender, A. N., Benson, B. A., Carlstrom, J. E., Carter, F. W., Cecil, T., Chang, C. L., Cliche, J. F., Cukierman, A., Denison, E. V., de Haan, T., Ding, J., Dobbs, M. A., Dutcher, D., Elleflot, T., Everett, W., Foster, A., Gannon, R. N., Gilbert, A., Groh, J. C., Halverson, N. W., Harke-Hosemann, A. H., Harrington, N. L., Hasegawa, M., Hattori, K., Henning, J. W., Hilton, G. C., Holzapfel, W. L., Hori, Y., Huang, N., Irwin, K. D., Jeong, O. B., Jonas, M., Khaire, T., Kofman, A. M., Korman, M., Kubik, D., Kuhlmann, S., Kuo, C. L., Lee, A. T., Lowitz, A. E., Meyer, S. S., Montgomery, J., Nadolski, A., Natoli, T., Nguyen, H., Nishino, H., Noble, G. I., Novosad, V., Padin, S., Pan, Z., Pearson, J., Posada, C. M., Rahlin, A., Rotermund, K., Ruhl, J. E., Saunders, L. J., Sayre, J. T., Shirley, I., Shirokoff, E., Smecher, G., Sobrin, J. A., Stark, A. A., Story, K. T., Suzuki, A., Tang, Q. Y., Thompson, K. L., Tucker, C., Vale, L. R., Vanderlinde, K., Vieira, J. D., Wang, G., Whitehorn, N., Yefremenko, V., Yoon, K. W., and Young, M. R. Thu . "Design and Assembly of SPT-3G Cold Readout Hardware". United States. doi:10.1007/s10909-018-1965-5.
@article{osti_1481277,
title = {Design and Assembly of SPT-3G Cold Readout Hardware},
author = {Avva, J. S. and Ade, P. A. R. and Ahmed, Z. and Anderson, A. J. and Austermann, J. E. and Thakur, R. Basu and Barron, D. and Bender, A. N. and Benson, B. A. and Carlstrom, J. E. and Carter, F. W. and Cecil, T. and Chang, C. L. and Cliche, J. F. and Cukierman, A. and Denison, E. V. and de Haan, T. and Ding, J. and Dobbs, M. A. and Dutcher, D. and Elleflot, T. and Everett, W. and Foster, A. and Gannon, R. N. and Gilbert, A. and Groh, J. C. and Halverson, N. W. and Harke-Hosemann, A. H. and Harrington, N. L. and Hasegawa, M. and Hattori, K. and Henning, J. W. and Hilton, G. C. and Holzapfel, W. L. and Hori, Y. and Huang, N. and Irwin, K. D. and Jeong, O. B. and Jonas, M. and Khaire, T. and Kofman, A. M. and Korman, M. and Kubik, D. and Kuhlmann, S. and Kuo, C. L. and Lee, A. T. and Lowitz, A. E. and Meyer, S. S. and Montgomery, J. and Nadolski, A. and Natoli, T. and Nguyen, H. and Nishino, H. and Noble, G. I. and Novosad, V. and Padin, S. and Pan, Z. and Pearson, J. and Posada, C. M. and Rahlin, A. and Rotermund, K. and Ruhl, J. E. and Saunders, L. J. and Sayre, J. T. and Shirley, I. and Shirokoff, E. and Smecher, G. and Sobrin, J. A. and Stark, A. A. and Story, K. T. and Suzuki, A. and Tang, Q. Y. and Thompson, K. L. and Tucker, C. and Vale, L. R. and Vanderlinde, K. and Vieira, J. D. and Wang, G. and Whitehorn, N. and Yefremenko, V. and Yoon, K. W. and Young, M. R.},
abstractNote = {The third- generation upgrade to the receiver on the South Pole Telescope, SPT- 3G, was installed at the South Pole during the 2016- 2017 austral summer to measure the polarization of the cosmic microwave background. Increasing the number of detectors by a factor of 10 to 16, 000 required the multiplexing factor to increase to 68 and the bandwidth of the frequency- division readout electronics to span 1.6- 5.2 MHz. This increase necessitates low- thermal conductance, low- inductance cryogenic wiring. Our cold readout system consists of planar thin- film aluminum inductive- capacitive resonators, wired in series with the detectors, summed together, and connected to 4K SQUIDs by 10- mu m- thick niobium- titanium ( NbTi) broadsidecoupled striplines. Here, we present an overview of the cold readout electronics for SPT- 3G, including assembly details and characterization of electrical and thermal properties of the system. We report, for the NbTi striplines, values of R = 10 L = 21 +/- 1 nH, and C = 1.47 +/-. 02 nF. Additionally, the striplines' thermal conductivity is described by kA = 6.0 +/- 0.3 T 0.92 +/- 0.04 mu W mm K - 1. Finally, we provide projections for cross talk induced by parasitic impedances from the stripline and find that the median value of percentage cross talk from leakage current is 0.22 and 0.09% from wiring impedance.},
doi = {10.1007/s10909-018-1965-5},
journal = {Journal of Low Temperature Physics},
issn = {0022-2291},
number = 3-4,
volume = 193,
place = {United States},
year = {2018},
month = {5}
}