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...

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Bibliographic Details
Main Authors: Church, S., Ade, P.A.R., Bock, J.J., Bowden, M., Carlstrom, J.E., Ganga, K., Gear, W.K., Hinderks, J., Hu, W., Keating, B.G., Kovac, J., Lange, A.E., Leitch, E., Mallie, O.E., Melhuish, S.J., Murphy, J.Anthony, Rusholme, B., O'Sullivan, Créidhe, Piccirillo, L., Pryke, C., Taylor, A., Thompson, K.
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier 2003
Subjects:
Experimental Physics
South Pole
South pole
Online Access:https://mural.maynoothuniversity.ie/5939/
https://mural.maynoothuniversity.ie/5939/1/COS-QUEST.pdf
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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