Year: 2022
Type: article
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.
Source: Journal of Instrumentation
Authors: C. Franceschet, F. Del Torto, F. Villa, S. Realini, R. Bongiolatti, O.A. Peverini, F. Pezzotta, D.M. Viganó, G. Addamo, M. Bersanelli, F. Cavaliere, F. Cuttaia, M. Gervasi, A. Mennella, G. Morgante, A.C. Taylor, G. Virone, M. Zannoni
Institutions: University of Milan, Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Osservatorio di Astrofisica e Scienza dello Spazio, National Institute for Astrophysics, Politecnico di Torino, Institute of Electronics, Computer and Telecommunication Engineering, Istituto Nazionale di Fisica Nucleare, Sezione di Milano Bicocca, University of Milano-Bicocca, University of Oxford
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W3183901689