AAS 207th Meeting, 8-12 January 2006
Session 88 Advanced Radio, Millimeter and Sub-mm Instruments
Oral, Tuesday, 10:00-11:30am, January 10, 2006, Salon 1

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[88.03] The QUaD CMB Polarimeter

B.A. Rusholme (Stanford University), QUaD Collaboration

QUaD is a new CMB polarization bolometer-array experiment, designed for high-sensitivity measurement of the E-mode power spectrum out to an l of 2400. I will describe the instrument design and performance. The telescope is a ground-based, on-axis, 2.64-m Cassegrain on the South Pole DASI mount. The focal plane is composed of 31 polarization-sensitive bolometer pairs split between 100 and 150 GHz observation, each pair instantaneously sensitive to a single Stoke's parameter. The instrument was installed at its South Pole site over the 2004--05 Austral Summer and recently completed its first season of Austral Winter observation. The instrument performed as planned and minimal changes will be made for the 2006 season.

This work is supported by the National Science Foundation under Grants 9987360 and 0096778, by the Particle Physics and Astronomy Research Council in the UK, and by the Irish Research Council for Science, Engineering and Technology

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