BICEP Array: a multi-frequency degree-scale CMB polarimeter

Abstract

BICEP Array is the newest multi-frequency instrument in the BICEP/Keck Array program. It is comprised of four 550 mm aperture refractive telescopes observing the polarization of the cosmic microwave background (CMB) at 30/40, 95, 150 and 220/270 GHz with over 30,000 detectors. We present an overview of the receiver, detailing the optics, thermal, mechanical, and magnetic shielding design. BICEP Array follows BICEP3's modular focal plane concept, and upgrades to 6" wafer to reduce fabrication with higher detector count per module. The first receiver at 30/40 GHz is expected to start observing at the South Pole during the 2019-20 season. By the end of the planned BICEP Array program, we project $\sigma (r)\sim 0.003$, assuming current modeling of polarized Galactic foreground and depending on the level of delensing that can be achieved with higher resolution maps from the South Pole Telescope.

15 pages, 13 figures

References in corpus (11)

• BICEP2 I: Detection Of B-mode Polarization at Degree Angular Scales
• A Joint Analysis of BICEP2/Keck Array and Planck Data
• The Quest for B Modes from Inflationary Gravitational Waves
• Antenna-coupled TES bolometers used in BICEP2, Keck array, and SPIDER
• Thermal Conductivity of Thermally-Isolating Polymeric and Composite Structural Support Materials Between 0.3 and 4 K
• Initial Performance of BICEP3: A Degree Angular Scale 95 GHz Band Polarimeter
• Highly-multiplexed microwave SQUID readout using the SLAC Microresonator Radio Frequency (SMuRF) Electronics for Future CMB and Sub-millimeter Surveys
• Cryogenic infrared filter made of alumina for use at millimeter wavelength
• 2017 upgrade and performance of BICEP3: a 95GHz refracting telescope for degree-scale CMB polarization
• Design and performance of wide-band corrugated walls for the BICEP Array detector modules at 30/40 GHz
• Sub-Kelvin Cooling for the BICEP Array Project

Cited by in corpus (62)

• BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• New Extraction of the Cosmic Birefringence from the Planck 2018 Polarization Data
• Measurements of the E-Mode Polarization and Temperature-E-Mode Correlation of the CMB from SPT-3G 2018 Data
• Sounds Discordant: Classical Distance Ladder & $\Lambda$CDM -based Determinations of the Cosmological Sound Horizon
• Axion Dark Matter Detection with CMB Polarization
• Cosmic Birefringence from Planck Data Release 4
• A Measurement of the Cosmic Microwave Background Lensing Potential and Power Spectrum from 500 deg${}^2$ of SPTpol Temperature and Polarization Data
• A Measurement of Gravitational Lensing of the Cosmic Microwave Background Using SPT-3G 2018 Data
• A Microwave SQUID Multiplexer Optimized for Bolometric Applications
• CMB targets after the latest Planck data release
• Applications for Microwave Kinetic Induction Detectors in Advanced Instrumentation
• The Simons Observatory: Constraining inflationary gravitational waves with multi-tracer B-mode delensing
• Revealing the Cosmic History with Gravitational Waves
• A minimal power-spectrum-based moment expansion for CMB B-mode searches
• The Simons Observatory: gain, bandpass and polarization-angle calibration requirements for B-mode searches
• Cosmic birefringence tomography and calibration-independence with reionization signals in the CMB
• Transition Edge Sensors: Physics and Applications
• BICEP2 / Keck Array XI: Beam Characterization and Temperature-to-Polarization Leakage in the BK15 Dataset
• CMB B-mode non-Gaussianity: optimal bispectrum estimator and Fisher forecasts
• Design and performance of the first BICEP Array receiver
• LiteBIRD Science Goals and Forecasts: Improving Sensitivity to Inflationary Gravitational Waves with Multitracer Delensing
• Small-scale Tests of Inflation
• On the Detection of CMB B-modes from Ground at Low Frequency
• QUIJOTE scientific results -- VIII. Diffuse polarized foregrounds from component separation with QUIJOTE-MFI
• Revised estimates of CMB $B$-mode polarization induced by patchy reionization
• A Generative Model of Galactic Dust Emission Using Variational Inference
• M-theory Cosmology, Octonions, Error Correcting Codes
• Broadband, millimeter-wave antireflection coatings for large-format, cryogenic aluminum oxide optics
• Reconstructing Cosmic Polarization Rotation with ResUNet-CMB
• ECLIPSE: a fast Quadratic Maximum Likelihood estimator for CMB intensity and polarization power spectra
• Picosecond Laser Ablation of Millimeter-Wave Subwavelength Structures on Alumina and Sapphire
• Exact joint likelihood of pseudo-$C_{\ell }$ estimates from correlated Gaussian cosmological fields
• Modular Inflation at Higher Level $N$
• Harmonic Hybrid Inflation
• Design and performance of wide-band corrugated walls for the BICEP Array detector modules at 30/40 GHz
• Symmetrically Tuned Large-Volume Conic Shell-Cavities for Axion Searches
• Modern Cosmology, an Amuse-Gueule
• Cosmology Large Angular Scale Surveyor (CLASS): 90 GHz Telescope Pointing, Beam Profile, Window Function, and Polarization Performance
• Characterizing the Sensitivity of 40 GHz TES Bolometers for BICEP Array
• Optical Design and Characterization of 40-GHz Detector and Module for the BICEP Array
• Forecast of foreground cleaning strategies for AliCPT-1
• Controlling systematics in ground-based CMB surveys with partial boresight rotation
• The imprint of ultralight vector fields on gravitational wave propagation
• Geometrical and physical optics analysis for mm-wavelength refractor telescopes designed to map the cosmic microwave background
• Analysis of Temperature-to-Polarization Leakage in BICEP3 and Keck CMB Data from 2016 to 2018
• Plastic Laminate Antireflective Coatings for Millimeter-wave Optics in BICEP Array
• Design and Performance of 30/40 GHz Diplexed Focal Plane for BICEP Array
• The Simons Observatory: Validation of reconstructed power spectra from simulated filtered maps for the Small Aperture Telescope survey
• The optical system of the Tenerife Microwave Spectrometer: a window for observing the 10-20 GHz sky spectra
• Fast map-based simulations of systematics in CMB surveys including effects of the scanning strategy
• Spinning Guest Fields during Inflation: Leftover Signatures
• Deprojecting beam systematics for next-generation CMB B-mode searches
• Modified crossed Dragone optical design of the LiteBIRD low-frequency telescope
• Vector dark radiation and gravitational-wave polarization
• The Precursor Small Aperture Telescope (PreSAT) CMB polarimeter
• Bias in the tensor-to-scalar ratio from self-interacting dark radiation
• A Large Diameter Millimeter-Wave Low-Pass Filter Made of Alumina with Laser Ablated Anti-Reflection Coating
• Polarization angle requirements for CMB B-mode experiments. Application to the LiteBIRD satellite
• Design and Performance of 220 and 270 GHz Bandpass Filters for BICEP Array
• Quantum measurement systems and applications to particle physics and cosmology
• Receiver development for BICEP Array, a next-generation CMB polarimeter at the South Pole