QUaD,[1] 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.
Alternative names | QUEST at DASI |
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Part of | Amundsen–Scott South Pole Station |
Location(s) | Antarctic Treaty area |
Coordinates | 89°59′29″S 44°30′00″W / 89.9914°S 44.5°W |
Telescope style | cosmic microwave background experiment radio telescope |
Location of QUaD | |
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