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°, 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 (< 1 μK) 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.

Carretti, E., Cortiglioni, S., Bernardi, G., Cecchini, S., Macculi, C., Sbarra, C., et al. (2003). SPOrt: An experiment aimed at measuring the large scale cosmic microwave background polarization. In Polarimetry in Astronomy (pp.305-313). SPIE--the International Society for Optical Engineering [10.1117/12.458896].

SPOrt: An experiment aimed at measuring the large scale cosmic microwave background polarization

BOELLA, GIULIANO FILIPPO;BONOMETTO, SILVIO;GERVASI, MASSIMO;SIRONI, GIORGIO;ZANNONI, MARIO;
2003

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°, 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 (< 1 μK) 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.
paper
CMB; Instrumental Effects; Polarimeter; Polarization;
English
Polarimetry in Astronomy 25 August 2002 through 28 August 2002
2002
Fineschi S.
Polarimetry in Astronomy
2003
4843
305
313
none
Carretti, E., Cortiglioni, S., Bernardi, G., Cecchini, S., Macculi, C., Sbarra, C., et al. (2003). SPOrt: An experiment aimed at measuring the large scale cosmic microwave background polarization. In Polarimetry in Astronomy (pp.305-313). SPIE--the International Society for Optical Engineering [10.1117/12.458896].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/38974
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