8 October 2004 Millimeter-wave MMIC cameras and the QUIET experiment
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A breakthrough in the packaging of cryogenic millimeterwave circuits enables mass production of radiometer or polarimeter array elements, leading to low cost, high performance, and straightforward scaling to arbitrarily large arrays. The Q/U Imaging ExperimenT (QUIET) will measure the polarization of the cosmic microvave background from the ground using such large arrays of coherent polarimeters. With two different optical systems, angular scales from ten degrees to 4' can be covered.
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Charles R. Lawrence, Charles R. Lawrence, Todd C. Gaier, Todd C. Gaier, Michael Seiffert, Michael Seiffert, "Millimeter-wave MMIC cameras and the QUIET experiment", Proc. SPIE 5498, Millimeter and Submillimeter Detectors for Astronomy II, (8 October 2004); doi: 10.1117/12.553771; https://doi.org/10.1117/12.553771

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