14 February 2003 SPOrt: an experiment aimed at measuring the large-scale cosmic microwave background polarization
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Proceedings Volume 4843, Polarimetry in Astronomy; (2003); doi: 10.1117/12.458896
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States
Abstract
SPOrt (Sky Polarization Observatory) is a space experiment to be flown on the International Space Station during Early Utilization Phase aimed at measuring the microwave polarized emission with FWHM = 7 deg, in the frequency range 22-90 GHz. The Galactic polarized emission can be observed at the lower frequencies and the polarization of Cosmic Microwave Background (CMB) at 90 GHz, where contaminants are expected to be less important. The extremely low level of the CMB Polarization signal calls for intrinsically stable radiometers. The SPOrt instrument is expressly devoted to CMB polarization measurements and the whole design has been optimized for minimizing instrumental polarization effects. In this contribution we present the receiver architecture based on correlation techniques, the analysis showing its intrinsic stability and the custom hardware development carried out to detect such a low signal.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ettore Carretti, Stefano Cortiglioni, Gianni Bernardi, Stefano Cecchini, Claudio Macculi, Carla Sbarra, Jader Monari, Alessandro Orfei, Marco Poloni, Sergio Poppi, Giuliano Boella, Silvio Bonometto, Massimo Gervasi, Giorgio Sironi, Mario Zannoni, Marco Tucci, Massino Baralis, Oscar A. Peverini, Riccardo Tascone, Giuseppe Virone, Roberto Fabbri, Luciano Nicastro, Kin-Wang Ng, V. A. Razin, Evgenij N. Vinyajkin, Mikhail V. Sazhin, Igor A. Strukov, "SPOrt: an experiment aimed at measuring the large-scale cosmic microwave background polarization", Proc. SPIE 4843, Polarimetry in Astronomy, (14 February 2003); doi: 10.1117/12.458896; https://doi.org/10.1117/12.458896
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KEYWORDS
Polarization

Microwave radiation

Polarizers

Radiometry

Signal detection

Anisotropy

Signal attenuation

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