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Title: The Atacama Cosmology Telescope: The Polarization-Sensitive ACTPol Instrument

Journal Article · · The Astrophysical Journal. Supplement Series (Online)
ORCiD logo [1];  [2];  [3];  [4];  [5];  [6];  [6];  [7];  [8];  [9];  [10];  [10];  [4];  [4];  [11];  [6];  [6];  [9];  [6];  [8] more »;  [5];  [12];  [9];  [6];  [13];  [8];  [6];  [14];  [4];  [9];  [7];  [15];  [4];  [11];  [10];  [10];  [16];  [4];  [17];  [6];  [9];  [18];  [19];  [8];  [8];  [20];  [4];  [21];  [22];  [8];  [8];  [23];  [24];  [6];  [4];  [25] « less
  1. Univ. of Pennsylvania, Philadelphia, PA (United States); West Chester Univ. of Pennsylvania, West Chester, PA (United States)
  2. Cardif Univ.(United Kingdom)
  3. Univ. of Pittsburgh, PA (United States)
  4. Univ. of Pennsylvania, Philadelphia, PA (United States)
  5. Univ. of British Columbia, Vancouver, BC (Canada)
  6. NIST Quantum Sensors Group, Boulder, CO (United States)
  7. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  8. Princeton Univ., NJ (United States). Joseph Henry Lab. of Physics
  9. Cornell Univ., Ithaca, NY (United States)
  10. Univ. of Michigan, Ann Arbor, MI (United States)
  11. Pontificia Univ. Catolica de Chile, Santiago (Chile)
  12. Pennsylvania State Univ., University Park, PA (United States)
  13. Univ. of British Columbia, Vancouver, BC (Canada); Pontificia Univ. Gregoriana, Rome (Italy)
  14. SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States)
  15. UPMC Univ. Paris (France)
  16. Univ. of Oxford (United Kingdom)
  17. Univ. of Toronto, ON (Canada)
  18. Sociedad Radiosky Asesoras de Ingeniería Limitada Lincoyan, Concepcion (Chile)
  19. Univ. of Toronto, ON (Canada). Canadian Inst. for Theoretical Astrophysics
  20. Princeton Univ., NJ (United States). Joseph Henry Lab. of Physics; Sociedad Radiosky Asesoras de Ingeniería Limitada Lincoyan, Concepcion (Chile)
  21. Stony Brook Univ., NY (United States)
  22. Univ. of KwaZulu-Natal, Durban (South Africa). Astrophysics & Cosmology Research Unit
  23. Cardiff Univ. (United Kingdom)
  24. Sociedad Radiosky Asesoras de Ingenieri­a Limitada Lincoyan, Concepcion (Chile)
  25. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
+ Show Author Affiliations

The Atacama Cosmology Telescope (ACT) makes high angular resolution measurements of anisotropies in the Cosmic Microwave Background (CMB) at millimeter wavelengths. We describe ACTPol, an upgraded receiver for ACT, which uses feedhorn-coupled, polarization-sensitive detector arrays, a 3° field of view, 100 mK cryogenics with continuous cooling, and meta material antireflection coatings. ACTPol comprises three arrays with separate cryogenic optics: two arrays at a central frequency of 148 GHz and one array operating simultaneously at both 97 GHz and 148 GHz. The combined instrument sensitivity, angular resolution, and sky coverage are optimized for measuring angular power spectra, clusters via the thermal Sunyaev–Zel'dovich (SZ) and kinetic SZ signals, and CMB lensing due to large-scale structure. The receiver was commissioned with its first 148 GHz array in 2013, observed with both 148 GHz arrays in 2014, and has recently completed its first full season of operations with the full suite of three arrays. This paper provides an overview of the design and initial performance of the receiver and related systems.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1361145
Journal Information:
The Astrophysical Journal. Supplement Series (Online), Vol. 227, Issue 2; ISSN 1538-4365
Publisher:
American Astronomical Society/IOPCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 143 works
Citation information provided by
Web of Science

References (37)

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Design and Deployment of a Multichroic Polarimeter Array on the Atacama Cosmology Telescope journal March 2016
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The First Multichroic Polarimeter Array on the Atacama Cosmology Telescope: Characterization and Performance journal March 2016
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Design and development of an ambient-temperature continuously-rotating achromatic half-wave plate for CMB polarization modulation on the POLARBEAR-2 experiment conference July 2016
Modulation of cosmic microwave background polarization with a warm rapidly rotating half-wave plate on the Atacama B-Mode Search instrument journal February 2014
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The Atacama Cosmology Telescope: CMB polarization at 200 < ℓ < 9000 journal October 2014
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Cited By (50)

Optical Characterization of the SPT-3G Camera journal May 2018
Advanced ACTPol Low-Frequency Array: Readout and Characterization of Prototype 27 and 39 GHz Transition Edge Sensors journal May 2018
Characterization of the Mid-Frequency Arrays for Advanced ACTPol journal June 2018
SPT-3G: A Multichroic Receiver for the South Pole Telescope journal July 2018
Advanced ACTPol TES Device Parameters and Noise Performance in Fielded Arrays journal July 2018
Design, Fabrication and Measurement of Pyramid-Type Antireflective Structures on Columnar Crystal Silicon Lens for Millimeter-Wave Astronomy journal August 2018
The Physics of Galaxy Cluster Outskirts journal January 2019
Systematic effects induced by half-wave plate precession into measurements of the cosmic microwave background polarization journal July 2019
Microwave SQUID multiplexer demonstration for cosmic microwave background imagers journal December 2017
Hierarchical sinuous-antenna phased array for millimeter wavelengths journal March 2018
Tile-and-trim micro-resonator array fabrication optimized for high multiplexing factors journal February 2019
Production method of millimeter-wave absorber with 3D-printed mold journal January 2020
Recent discoveries from the cosmic microwave background: a review of recent progress journal February 2018
Detection of the pairwise kinematic Sunyaev-Zel'dovich effect with BOSS DR11 and the Atacama Cosmology Telescope journal March 2017
Efficient exploration of cosmology dependence in the EFT of LSS journal April 2017
The Atacama Cosmology Telescope: two-season ACTPol spectra and parameters journal June 2017
Optimization study for the experimental configuration of CMB-S4 journal February 2018
Optimizing microwave photodetection: input–output theory journal March 2018
ABS: an analytical method of blind separation of CMB from foregrounds journal January 2019
Measurement of the splashback feature around SZ-selected Galaxy clusters with DES, SPT, and ACT journal May 2019
Extreme digitization for ground-based cosmic microwave background experiments journal June 2019
Quantifying the thermal Sunyaev–Zel’dovich effect and excess millimetre emission in quasar environments journal October 2019
GMRT 610 MHz observations of galaxy clusters in the ACT equatorial sample journal March 2019
The Hyper Suprime-Cam SSP Survey: Overview and survey design journal September 2017
Optical modeling and polarization calibration for CMB measurements with ACTPol and Advanced ACTPol conference July 2016
HIRAX: a probe of dark energy and radio transients conference August 2016
QUBIC: the Q and U bolometric interferometer for cosmology
  • O'Sullivan, Créidhe; Amico, Giorgio; Auguste, D.
  • Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX https://doi.org/10.1117/12.2313332
conference July 2018
Prime-Cam: a first-light instrument for the CCAT-prime telescope
  • Vavagiakis, Eve; Ahmed, Zeeshan; Ali, Aamir
  • Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX https://doi.org/10.1117/12.2313868
conference July 2018
Elucidating ΛCDM: Impact of Baryon Acoustic Oscillation Measurements on the Hubble Constant Discrepancy journal January 2018
The Effects of Bandpass Variations on Foreground Removal Forecasts for Future CMB Experiments journal July 2018
A Projected Estimate of the Reionization Optical Depth Using the CLASS Experiment’s Sample Variance Limited E-mode Measurement journal August 2018
X-Ray Properties of SPT-selected Galaxy Clusters at 0.2 < z < 1.5 Observed with XMM-Newton journal January 2019
Weak-lensing Mass Calibration of ACTPol Sunyaev–Zel’dovich Clusters with the Hyper Suprime-Cam Survey journal April 2019
The Atacama Cosmology Telescope: The Two-season ACTPol Sunyaev–Zel’dovich Effect Selected Cluster Catalog journal March 2018
Two-season Atacama Cosmology Telescope polarimeter lensing power spectrum text January 2017
Optical modeling and polarization calibration for CMB measurements with ACTPol and Advanced ACTPol text January 2016
HIRAX: A Probe of Dark Energy and Radio Transients text January 2016
Detection of the pairwise kinematic Sunyaev-Zel'dovich effect with BOSS DR11 and the Atacama Cosmology Telescope text January 2016
Optimization Study for the Experimental Configuration of CMB-S4 text January 2017
Microwave SQUID Multiplexer demonstration for Cosmic Microwave Background Imagers text January 2017
Advanced ACTPol Low Frequency Array: Readout and Characterization of Prototype 27 and 39 GHz Transition Edge Sensors text January 2017
Characterization of the Mid-Frequency Arrays for Advanced ACTPol text January 2017
Hierarchical sinuous-antenna phased array for millimeter wavelengths text January 2018
Tile-and-trim micro-resonator array fabrication optimized for high multiplexing factors text January 2018
Advanced ACTPol TES Device Parameters and Noise Performance in Fielded Arrays text January 2018
Extreme Digitisation For Ground-Based Cosmic Microwave Background Experiments text January 2018
Axion Dark Matter Detection with CMB Polarization text January 2019
Production Method of Millimeter-Wave Absorber with 3D-Printed Mold text January 2020
Taking measurements of the kinematic Sunyaev-Zel'dovich effect forward: including uncertainties from velocity reconstruction with forward modeling text January 2020
The Simons Observatory: Modeling Optical Systematics in the Large Aperture Telescope text January 2020

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