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Ghribi Adnan, Tartari Andrea, Galli Silvia, Piat Michel, Breelle Eric, Hamilton Jean-Christophe, Spinelli Sebastiano, Gervasi Massimo, Zannoni Mario, |
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A demonstrator for bolometric interferometry
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Journal Article |
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2009 |
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JOURNAL OF INFRARED AND MILLIMETER WAVES |
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1001-9014 |
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Astrophysics – Cosmology and Extragalactic Astrophysics, Astrophysics – Instrumentation and Methods for Astrophysics, |
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Abstract |
Bolometric Interferometry (BI) is one of the most promising techniques for precise measurements of the Cosmic Microwave Background polarization. In this paper, we present the results of DIBO (Demonstrateur d'Interferometrie Bolometrique), a single-baseline demonstrator operating at 90 GHz, built to proof the validity of the BI concept applied to a millimeter-wave interferometer. This instrument has been characterized in the laboratory with a detector at room temperature and with a 4 K bolometer. This allowed us to measure interference patterns in a clean way, both (1) rotating the source and (2) varying with time the phase shift among the two interferometer's arms. Detailed modelisation has also been performed and validated with measurements. |
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1001-9014 |
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yes |
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207 |
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