The Q/U Imaging Experiment (QUIET)

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Scientific paper

The goal of the Q/U Imaging ExperimenT (QUIET) is to measure the Cosmic Microwave Background (CMB) polarization with unprecedented sensitivity and an angular resolution that is well matched to the scale at which the signature of inflationary gravity waves (or “B-modes”) is expected to peak. The initial version of QUIET will consist of two frequency channels, 44 and 90 GHz, with 19 and 91 elements respectively, to provide an order of magnitude sensitivity improvement over WMAP. The QUIET approach is completely scalable, and we can achieve even greater sensitivity with order one thousand elements. We describe the science goals, the polarimeter modules, the observing strategy, and other instrumental aspects of the experiment.
QUIET has recently received funding from the National Science Foundation and is a collaboration among scientists at the following institutions: California Institute of Technology, Columbia University, Jet Propulsion Laboratory, Kavli Institute for Cosmological Physics at the University of Chicago, Kavli Institute for Particle Astrophysics and Cosmology at Stanford University, University of Miami, MPI Bonn, University of Oxford, and Princeton University.

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