PAPER: The Precision Array To Probe The Epoch Of Reionization

Details PAPER: The Precision Array To Probe The Epoch Of Reionization PAPER: The Precision Array To Probe The Epoch Of Reionization

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21113302b&link_type=abstract

American Astronomical Society, AAS Meeting #211, #133.02; Bulletin of the American Astronomical Society, Vol. 39, p.967

Astronomy and Astrophysics

Astronomy

Scientific paper

The Precision Array to Probe the Epoch of Reionization (PAPER) is an experiment that is being designed to detect the faint HI signal from the epoch of reionization. Our instrumentation goals include: the design and building of dipole elements that are optimized for operation from 120-190 MHz with a clean beam response; amplifiers and receivers with good impedance match and overall flat gain response over a large bandpass; and an FPGA correlator capable of producing full Stokes products for the array.
The array is being built and evaluated in stages at the Green Bank Observatory in West Virginia with deployment of the full instrument in Western Australia. We present results from an eight-station deployment in Green Bank and four-station deployment in Western Australia, including phase and amplitude calibration, RFI mitigation and removal, full sky maps, and wide-field snapshot imaging. We have discovered new ways to improve our system's stability and sensitivity from these early experiments, and are applying these concepts to a 16-element array in Green Bank in early 2008 and a 32-element array in Western Australia later in 2008.

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