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 A. R., Bock, James, Bowden, Melanie, Carlstrom, John, Ganga, Ken, Gear, Walter Kieran, Hinderks, James, Hu, Wayne, Keating, Brian, Kovac, John, Lange, Andrew, Leitch, Eric, Mallie, Olivier Eric, Melhuish, Simon, Murphy, Anthony, Rusholme, Ben, O'Sullivan, Creidhe, Piccirillo, Lucio, Pryke, Clem, Taylor, Andy, Thompson, Keith
Format: Article in Journal/Newspaper
Language:unknown
Published: Elsevier 2003
Subjects:
QB Astronomy
South Pole
South pole
Online Access:https://orca.cardiff.ac.uk/id/eprint/35852/
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.

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