QUEST on DASI: A South Pole CMB polarization experiment

Sarah Church, Peter Ade, James Bock, Melanie Bowden, John Carlstrom, Ken Ganga, Walter Gear, James Hinderks, Wayne Hu, Brian Keating, John Kovac, Andrew Lange, Eric Leitch, Olivier Mallie, Simon Melhuish, Anthony Murphy, Ben Rusholme, Creidhe O'Sullivan, Lucio Piccirillo, Clem PrykeAndy Taylor, Keith Thompson

Research output: Contribution to journalShort surveypeer-review

30 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)1083-1089
Number of pages7
JournalNew Astronomy Reviews
Issue number11-12
StatePublished - Dec 2003

Bibliographical note

Funding Information:
This material is based upon work supported by the National Science Foundation under Grants 9987360 and 0096778, by the Particle Physics and Astronomy Research Council in the UK, and by the Irish Research Council for Science, Engineering and Technology.


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