QUBIC, the QU Bolometric Interferometer for Cosmology, is a novel forthcoming instrument to measure the B-mode polarization anisotropy of the Cosmic Microwave Background. The detection of the B-mode signal will be extremely challenging; QUBIC has been designed to address this with a novel approach, namely bolometric interferometry. The receiver cryostat is exceptionally large and cools complex optical and detector stages to 40 K, 4 K, 1 K and 350 mK using two pulse tube coolers, a novel 4He sorption cooler and a double-stage 3He/4He sorption cooler. We discuss the thermal and mechanical design of the cryostat, modelling and thermal analysis, and laboratory cryogenic testing.

Tristram, M., Passerini, A., Franceschet, C., Scully, S., Ade, P., Zullo, A., et al. (2018). Thermal architecture for the QUBIC cryogenic receiver. In Proceedings Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018 [10.1117/12.2312085].

Thermal architecture for the QUBIC cryogenic receiver

Passerini, Andrea;Zannoni, Mario;Gervasi, Massimo;Baù, Alessandro;Banfi, S.;Coppi, Gabriele;
2018

Abstract

QUBIC, the QU Bolometric Interferometer for Cosmology, is a novel forthcoming instrument to measure the B-mode polarization anisotropy of the Cosmic Microwave Background. The detection of the B-mode signal will be extremely challenging; QUBIC has been designed to address this with a novel approach, namely bolometric interferometry. The receiver cryostat is exceptionally large and cools complex optical and detector stages to 40 K, 4 K, 1 K and 350 mK using two pulse tube coolers, a novel 4He sorption cooler and a double-stage 3He/4He sorption cooler. We discuss the thermal and mechanical design of the cryostat, modelling and thermal analysis, and laboratory cryogenic testing.
slide + paper
Millimeter, Submillimeter, Far-Infrared, Detectors, Instrumentation, Cryogenics, Cosmic Microwave Background
English
SPIE Astronomical Telescopes and Instrumentation 2018
2018018
Zmuidzinas, J; Gao, JR
Proceedings Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018
978-151061969-2
9-lug-2018
2018
10708
107083V
none
Tristram, M., Passerini, A., Franceschet, C., Scully, S., Ade, P., Zullo, A., et al. (2018). Thermal architecture for the QUBIC cryogenic receiver. In Proceedings Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018 [10.1117/12.2312085].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/201357
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