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

M. D. Niemack, P. A.R. Ade, J. Aguirre, F. Barrientos, J. A. Beall, J. R. Bond, J. Britton, H. M. Cho, S. Das, M. J. Devlin, S. Dicker, J. Dunkley, R. Dünner, J. W. Fowler, A. Hajian, M. Halpern, M. Hasselfield, G. C. Hilton, M. Hilton, J. HubmayrJ. P. Hughes, L. Infante, K. D. Irwin, N. Jarosik, J. Klein, A. Kosowsky, T. A. Marriage, J. McMahon, F. Menanteau, K. Moodley, J. P. Nibarger, M. R. Nolta, L. A. Page, B. Partridge, E. D. Reese, J. Sievers, D. N. Spergel, S. T. Staggs, R. Thornton, C. Tucker, E. Wollack, K. W. Yoon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

165 Scopus citations

Abstract

The six-meter Atacama Cosmology Telescope (ACT) in Chile was built to measure the cosmic microwave background (CMB) at arcminute angular scales. We are building a new polarization sensitive receiver for ACT (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, the running of the spectral index of inflation-induced fluctuations, and the primordial helium abundance to better than 1 %. Our observing fields will overlap with the SDSS BOSS survey at optical wavelengths, enabling a variety of cross-correlation science, including studies of the growth of cosmic structure from Sunyaev-Zel'dovich observations of clusters of galaxies as well as independent constraints on the sum of the neutrino masses. We describe the science objectives and the initial receiver design.

Original languageEnglish (US)
Title of host publicationMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V
DOIs
StatePublished - 2010
EventMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V - San Diego, CA, United States
Duration: Jun 29 2010Jul 2 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7741
ISSN (Print)0277-786X

Other

OtherMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V
CountryUnited States
CitySan Diego, CA
Period6/29/107/2/10

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Keywords

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

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    Niemack, M. D., Ade, P. A. R., Aguirre, J., Barrientos, F., Beall, J. A., Bond, J. R., Britton, J., Cho, H. M., Das, S., Devlin, M. J., Dicker, S., Dunkley, J., Dünner, R., Fowler, J. W., Hajian, A., Halpern, M., Hasselfield, M., Hilton, G. C., Hilton, M., ... Yoon, K. W. (2010). ACTPol: A polarization-sensitive receiver for the Atacama Cosmology Telescope. In Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V [77411S] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7741). https://doi.org/10.1117/12.857464