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  • 21 Aug, 2019

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QUaD

QUaD, an acronym for QUEST at DASI, was a ground-based cosmic microwave background (CMB) polarization experiment at the South Pole. QUEST (Q and U Extragalactic Sub-mm Telescope) was the original name attributed to the bolometer detector instrument, while DASI is a famous CMB interferometry experiment credited with the first detection of CMB polarization. QUaD used the existing DASI mechanical infrastructure but replaced the DASI interferometric array with a bolometer detector at the end of a cassegrain optical system. The mount has housed the Keck Array since 2011.

See also

References

  1. ^ QUaD collaboration (2008). "First season QUaD CMB temperature and polarization power spectra". The Astrophysical Journal. 674 (2008): 22–28. arXiv:0705.2359. Bibcode:2008ApJ...674...22A. doi:10.1086/524922.