1202.0938 (D. Anish Roshi et al.)

Advanced Multi-beam Spectrometer for the Green Bank Telescope    [PDF]

D. Anish Roshi, Marty Bloss, Patrick Brandt, Srikanth Bussa, Hong Chen, Paul Demorest, Gregory Desvignes, Terry Filiba, Richard J. Fisher, John Ford, David Frayer, Robert Garwood, Suraj Gowda, Glenn Jones, Billy Mallard, Joseph Masters, Randy McCullough, Guifre Molera, Karen O'Neil, Jason Ray, Simon Scott, Amy Shelton, Andrew Siemion, Mark Wagner, Galen Watts, Dan Werthimer, Mark Whitehead

A new spectrometer for the Green Bank Telescope (GBT) is being built jointly by the NRAO and the CASPER, University of California, Berkeley. The spectrometer uses 8 bit ADCs and will be capable of processing up to 1.25 GHz bandwidth from 8 dual polarized beams. This mode will be used to process data from focal plane arrays. The spectrometer supports observing mode with 8 tunable digital sub-bands within the 1.25 GHz bandwidth. The spectrometer can also be configured to process a bandwidth of up to 10 GHz with 64 tunable sub-bands from a dual polarized beam. The vastly enhanced backend capabilities will support several new science projects with the GBT.

View original: http://arxiv.org/abs/1202.0938