QUEST on DASI: A South Pole CMB polarization experiment

QUEST on DASI is a ground-based, high-sensitivity, high-resolution (ℓmax∼2500) experiment designed to map CMB polarization at 100 and 150 GHz and to measure the power spectra from E-modes, B-modes from lensing of the CMB, and B-modes from primordial gravitational waves. The experiment comprises a 2....

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Bibliographic Details
Published in:New Astronomy Reviews
Main Authors: Church, Sarah, Ade, Peter, Bock, James, Bowden, Melanie, Carlstrom, John, Ganga, Ken, Gear, Walter, Hinderks, James, Hu, Wayne, Keating, Brian, Kovac, John, Lange, Andrew, Leitch, Eric, Mallie, Olivier, Melhuish, Simon, Murphy, Anthony, Rusholme, Ben, O'Sullivan, Creidhe, Piccirillo, Lucio, Pryke, Clem, Taylor, Andy, Thompson, Keith
Format: Article in Journal/Newspaper
Language:English
Published: 2003
Subjects:
South Pole
South pole
Online Access:https://research.manchester.ac.uk/en/publications/d24f79be-216d-4357-a625-9228cabe6601
https://doi.org/10.1016/j.newar.2003.09.033
Description
Summary:QUEST on DASI is a ground-based, high-sensitivity, high-resolution (ℓmax∼2500) experiment designed to map CMB polarization at 100 and 150 GHz and to measure the power spectra from E-modes, B-modes from lensing of the CMB, and B-modes from primordial gravitational waves. The experiment comprises a 2.6 m Cassegrain optical system, equipped with an array of 62 polarization-sensitive bolometers (PSBs), located at the South Pole. The instrument is designed to minimize systematic effects; features include differencing of pairs of orthogonal PSBs within a single feed, a rotatable achromatic waveplate, and axisymmetric rotatable optics. In addition the South Pole location allows both repeatable and highly controlled observations. QUEST on DASI will commence operation in early 2005. © 2003 Elsevier B.V. All rights reserved.

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