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 novel4He sorption cooler and a double-stage3He/4He sorption cooler. We discuss the thermal and mechanical design of the cryostat, modelling and thermal analysis, and laboratory cryogenic testing.
|Titolo:||Thermal architecture for the QUBIC cryogenic receiver|
|Parole Chiave:||bolometric interferometry; cryogenics; experimental cosmology; heat switch; QUBIC; sorption cooler; Electronic, Optical and Magnetic Materials; Condensed Matter Physics; Computer Science Applications1707 Computer Vision and Pattern Recognition; Applied Mathematics; Electrical and Electronic Engineering|
|Settore Scientifico Disciplinare:||Settore FIS/05 - Astronomia e Astrofisica|
|Data di pubblicazione:||2018|
|Digital Object Identifier (DOI):||10.1117/12.2312085|
|Tipologia:||Book Part (author)|
|Appare nelle tipologie:||03 - Contributo in volume|