QUIET is a multi-year program to measure the CMB with large arrays of coherent detectors from the ground. The arrays will consist of receivers at two frequencies (40 and 90 GHz) and use multiple telescopes (3x2m + 1x7m) at 5,080m in Chile in the Atacama desert.

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Goal of the CMB Polarization hubThe goal of the CMB Polarization Hub is to coordinate and synthesize results from a number of experiments searching for B-mode polarization in order to minimize systematic errors due to backgrounds and maximize signal. With these combined results in hand, the probability of detection is maximized or the very strongest possible limits on inflationary gravitational waves will be established.