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Development of readout electronics for POLARBEAR-2 cosmic microwave background experiment

Journal Article · · Journal of Low Temperature Physics
 [1];  [2];  [3];  [4];  [5];  [4];  [4];  [6];  [7];  [2];  [2];  [4];  [4];  [7];  [8];  [4];  [6];  [9];  [4];  [4] more »;  [4] « less
  1. The Univ. of Tokyo, Kashiwa (Japan)
  2. High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)
  3. Univ. of Wisconsin, Madison, WI (United States)
  4. Univ. of California, Berkeley, CA (United States)
  5. Argonne National Lab. (ANL), Argonne, IL (United States)
  6. McGill Univ., Montreal, QC (Canada)
  7. Univ. of California, San Diego, CA (United States)
  8. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  9. Dalhousie Univ., Halifax (Canada)

The readout of transition-edge sensor (TES) bolometers with a large multiplexing factor is key for the next generation cosmic microwave background (CMB) experiment, Polarbear-2, having 7588 TES bolometers. To enable the large arrays, we have been developing a readout system with a multiplexing factor of 40 in the frequency domain. Extending that architecture to 40 bolometers requires an increase in the bandwidth of the SQUID electronics, above 4 MHz. This paper focuses on cryogenic readout and shows how it affects cross talk and the responsivity of the TES bolometers. A series resistance, such as equivalent series resistance of capacitors for LC filters, leads to non-linear response of the bolometers. A wiring inductance modulates a voltage across the bolometers and causes cross talk. They should be controlled well to reduce systematic errors in CMB observations. As a result, we have been developing a cryogenic readout with a low series impedance and have tuned bolometers in the middle of their transition at a high frequency (>3 MHz).

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan; National Science Foundation (NSF); National Aeronautic and Space Administration (NASA); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1346074
Journal Information:
Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 1-2 Vol. 184; ISSN 0022-2291
Publisher:
Plenum PressCopyright Statement
Country of Publication:
United States
Language:
English

References (9)

Transition-Edge Sensors book July 2005
The POLARBEAR-2 Experiment journal February 2014
Frequency multiplexed superconducting quantum interference device readout of large bolometer arrays for cosmic microwave background measurements journal July 2012
A MEASUREMENT OF THE COSMIC MICROWAVE BACKGROUND B -MODE POLARIZATION POWER SPECTRUM AT SUB-DEGREE SCALES WITH POLARBEAR journal October 2014
Evidence for Gravitational Lensing of the Cosmic Microwave Background Polarization from Cross-Correlation with the Cosmic Infrared Background journal April 2014
Measurement of the Cosmic Microwave Background Polarization Lensing Power Spectrum with the POLARBEAR Experiment journal July 2014
Digital frequency domain multiplexing readout electronics for the next generation of millimeter telescopes conference July 2014
Optimization of cold resonant filters for frequency domain multiplexed readout of POLARBEAR-2 conference August 2014
Membrane-based quasi-optical superconducting HEB mixers at terahertz frequencies conference September 2012

Cited By (4)

The Polarbear-2 and the Simons Array Experiments journal January 2016
LiteBIRD: Mission Overview and Focal Plane Layout journal April 2016
Planar Lithographed Superconducting LC Resonators for Frequency-Domain Multiplexed Readout Systems journal March 2016
The Simons Array CMB polarization experiment conference July 2016

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