South Pole Telescope (SPT)
The South Pole Telescope (SPT) is a ten-meter diameter telescope operating at the National Science Foundation South Pole research station (image above by Daniel Luong-Van). The telescope is designed to conduct large-area millimeter and sub-millimeter wavelength surveys of faint, low-contrast emission, as required to map primary and secondary anisotropies in the cosmic microwave background (CMB). A description of the receivers used on the SPT is given below.
From 2008 to 2011, the SPT-SZ receiver carried out a 2500 square-degree survey of the southern sky at high galactic latitude. The instrument had spectral bands centered at 95, 150, and 220 GHz, with 1 arcminute resolution at 150 GHz. Science highlights include:
Since 2012, the polarization-sensitive SPTpol receiver has carried out two surveys within a 500 square-degree region of the southern sky at high galactic latitudes: first a 100 square-degree survey in 2012 and early 2013, then a 500 square-degree survey. The instrument has spectral bands centered at 95 and 150 GHz, with 1 arcminute resolution at 150 GHz. Science highlights include:
Further details on SPT may be found at http://pole.uchicago.edu/public/