THE BACKGROUND EMISSION ANISOTROPY SCANNING TELESCOPE (BEAST) INSTRUMENT DESCRIPTION AND PERFORMANCES
- Nazzareno Mandolesi
- Philip Lubin
- Nathan Stebor
- M. Malaspina
- Jeffery Childers
- Thyrso Villela
- Marco Bersanelli
- Alan R. Levy
- Jorge Mejia
- Peter Meinhold
- Hugh O'Neill
- Miikka Kangas
- Joshua Marvil
- Fabrizio Villa
- Paolo Natoli
- Doron Halevi
- Todd Gaier
- Michael Seiffert
- Shane Parendo
- Carlos Alexandre Wuensche
- N. Figueiredo
- Brian Williams
DOIAbstract
The Background Emission Anisotropy Scanning Telescope (BEAST) is a millimeter wavelength experiment designed to generate maps offluctuations inthecosmicmicrowave background (CMB). The telescope is composed of an off-axis Gregorian optical systemwith a 2.2 mprimary thatfocuses the collected microwave radiation onto an array of cryogenically cooled high electron mobility transistor (HEMT) receivers. This array is composed of six corrugated scalar feed horns in the Q band (38 to 45 GHz) and two more in the Ka band (26 to 36 GHz) with one of the six Q-band horns connected to an ortho-mode transducer for extraction of both polarizations incident on th
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