Author:
Franceschet C.,Del Torto F.,Villa F.,Realini S.,Bongiolatti R.,Peverini O.A.,Pezzotta F.,Viganó D.M.,Addamo G.,Bersanelli M.,Cavaliere F.,Cuttaia F.,Gervasi M.,Mennella A.,Morgante G.,Taylor A.C.,Virone G.,Zannoni M.
Abstract
Abstract
In this paper we discuss the design, manufacturing and
characterization of the feed horn array of the Strip instrument of
the Large Scale Polarization Explorer (LSPE) experiment. Strip is a
microwave telescope, operating in the Q- and W-band, for the
observation of the polarized emissions from the sky in a large
fraction (about 37%) of the Northern hemisphere with sub-degree
angular resolution. The Strip focal plane is populated by forty-nine
Q-band and six W-band corrugated horns, each feeding a cryogenically
cooled polarimeter for the detection of the Stokes Q and U
components of the polarized signal from the sky. The Q-band channel
is designed to accurately monitor Galactic polarized synchrotron
emission, while the combination of Q- and W-band will allow the
study of atmospheric effects at the observation site, the
Observatorio del Teide, in Tenerife. In this paper we focus on the
development of the Strip corrugated feed horns, including design
requirements, engineering and manufacturing, as well as detailed
characterization and performance verification.
Subject
Mathematical Physics,Instrumentation
Cited by
4 articles.
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