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ACTPol: A polarization-sensitive receiver for the Atacama Cosmology Telescope

Published

Author(s)

Michael D. Niemack

Abstract

The six-meter Atacama Cosmology Telescope (ACT) in Chile was built to measure the cosmic microwave background (CMB) at arcminute angular scales. We present a new receiver for ACT that will provide polarization sensitivity (ACTPol). ACTPol will characterize the gravitational lensing of the CMB and aims to constrain the sum of the neutrino masses with ∼ 0.05 eV precision. Our observing fields will overlap with the SDSS BOSS survey, enabling a variety of cross-correlation science, including growth of structure from Sunyaev Zel’dovich galaxy clusters and independent constraints on the sum of the neutrino masses. We describe the science objectives and the initial receiver design.
Proceedings Title
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V (Conference 7741)
Volume
7741
Conference Dates
June 28-July 2, 2010
Conference Location
San Diego, CA
Conference Title
SPIE Astronomical Telescopes and Instrumentation

Keywords

Cosmic Microwave Background, Polarization, B-modes, Gravitational Lensing, Neutrino Mass, Optical Design, Transition-Edge-Sensor Detector Arrays, Cryogenics

Citation

Niemack, M. (2010), ACTPol: A polarization-sensitive receiver for the Atacama Cosmology Telescope, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V (Conference 7741) , San Diego, CA, [online], https://doi.org/10.1117/12.857464 (Accessed February 22, 2024)
Created July 15, 2010, Updated November 10, 2018