QUaD

QUaD
A photograph of the QUaD telescope inside its groundshield taken from a crane above the telescope.
Alternative namesQUEST at DASI
Location(s)Antarctic Treaty area
Coordinates89°59′29″S 44°30′00″W / 89.9914°S 44.5°W / -89.9914; -44.5
Location of QUaD
  Related media on Commons

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.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.