POLARBEAR-2: an instrument for CMB polarization measurements

Abstract

POLARBEAR-2 (PB-2) is a cosmic microwave background (CMB) polarization experiment that will be located in the Atacama highland in Chile at an altitude of 5200 m. Its science goals are to measure the CMB polarization signals originating from both primordial gravitational waves and weak lensing. PB-2 is designed to measure the tensor to scalar ratio, r, with precision σ(r) < 0.01, and the sum of neutrino masses, Σmν, with σ(Σmν) < 90 meV. To achieve these goals, PB-2 will employ 7588 transition-edge sensor bolometers at 95 GHz and 150 GHz, which will be operated at the base temperature of 250 mK. Science observations will begin in 2017.

arXiv comment9pages,8figures

References in corpus (7)

• A Probe of Primordial Gravity Waves and Vorticity
• BICEP3: a 95 GHz refracting telescope for degree-scale CMB polarization
• Design and development of an ambient-temperature continuously-rotating achromatic half-wave plate for CMB polarization modulation on the POLARBEAR-2 experiment
• Epoxy-based broadband anti-reflection coating for millimeter-wave optics
• Cryogenic infrared filter made of alumina for use at millimeter wavelength
• Digital frequency domain multiplexing readout electronics for the next generation of millimeter telescopes
• Adaptation of frequency-domain readout for Transition Edge Sensor bolometers for the POLARBEAR-2 Cosmic Microwave Background experiment

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• The POLARBEAR-2 and Simons Array Focal Plane Fabrication Status
• Hillclimbing Higgs inflation
• The EBEX Balloon Borne Experiment - Detectors and Readout
• Optimization Study for the Experimental Configuration of CMB-S4
• Pushing the Limits of Broadband and High Frequency Metamaterial Silicon Antireflection Coatings
• Cosmological implications of Standard Model criticality and Higgs inflation
• A large-diameter cryogenic rotation stage for half-wave plate polarization modulation on the POLARBEAR-2 experiment
• Broadband, millimeter-wave antireflection coatings for large-format, cryogenic aluminum oxide optics
• Picosecond Laser Ablation of Millimeter-Wave Subwavelength Structures on Alumina and Sapphire
• Two-layer anti-reflection coating with mullite and polyimide foam for large-diameter cryogenic infrared filters
• Systematic effects induced by Half Wave Plate precession into Cosmic Microwave Background polarization measurements
• Production Method of Millimeter-Wave Absorber with 3D-Printed Mold
• Irreversible vierbein postulate: Emergence of spacetime from quantum phase transition
• Breaking the degeneracy between polarization efficiency and cosmological parameters in CMB experiments
• Development of epoxy-based millimeter absorber with expanded polystyrenes and carbon black
• B-mode polarization forecasts for GreenPol