The primordial B-mode polarisation of the Cosmic Microwave Background is the imprints of the gravitational wave background generated by inflation. Observing the B-mode is up to now the most direct way to constrain the physics of the primordial Universe, especially inflation. To detect these B-modes, high sensitivity is required as well as an exquisite control of systematics effects. To comply with these requirements, we propose a new instrument called QUBIC (Q and U Bolometric Interferometer for Cosmology) based on bolometric interferometry. The control of systematics is obtained with a close-packed interferometer while bolometers cooled to very low temperature allow for high sensitivity. We present the architecture of this new instrument, the status of the project and the self-calibration technique which allows accurate measurement of the instrumental systematic effects.
QUBIC: the Q&U Bolometric Interferometer for Cosmology / M., Piat; Battistelli, Elia Stefano; A., Bau; D., Bennett; L., Berge; J. P., Bernard; DE BERNARDIS, Paolo; M. A., Bigot Sazy; G., Bordier; A., Bounab; E., Breelle; E. F., Bunn; Calvo, Martino; R., Charlassier; S., Collin; Cruciani, Angelo; G., Curran; L., Dumoulin; A., Gault; M., Gervasi; A., Ghribi; M., Giard; Giordano, Claudia; Y., Giraud Heraud; M., Gradziel; L., Guglielmi; J. C., Hamilton; V., Haynes; J., Kaplan; A., Korotkov; J., Lande; B., Maffei; M., Maiello; S., Malu; S., Marnieros; J., Martino; Masi, Silvia; L., Montier; A., Murphy; Nati, Federico; C., O'Sullivan; F., Pajot; C., Parisel; A., Passerini; S., Peterzen; Piacentini, Francesco; L., Piccirillo; Pisano, Giampaolo; Polenta, Gianluca; D., Prele; D., Romano; C., Rosset; Salatino, Maria; Schillaci, Alessandro; G., Sironi; R., Sordini; S., Spinelli; A., Tartari; P., Timbie; G., Tucker; L., Vibert; F., Voisin; R. A., Watson; M., Zannoni. - In: JOURNAL OF LOW TEMPERATURE PHYSICS. - ISSN 0022-2291. - STAMPA. - 167:5-6(2012), pp. 872-878. [10.1007/s10909-012-0522-x]
QUBIC: the Q&U Bolometric Interferometer for Cosmology
BATTISTELLI, Elia Stefano;DE BERNARDIS, Paolo;CALVO, MARTINO;CRUCIANI, ANGELO;GIORDANO, CLAUDIA;MASI, Silvia;NATI, FEDERICO;PIACENTINI, Francesco;PISANO, Giampaolo;POLENTA, GIANLUCA;SALATINO, MARIA;SCHILLACI, ALESSANDRO;
2012
Abstract
The primordial B-mode polarisation of the Cosmic Microwave Background is the imprints of the gravitational wave background generated by inflation. Observing the B-mode is up to now the most direct way to constrain the physics of the primordial Universe, especially inflation. To detect these B-modes, high sensitivity is required as well as an exquisite control of systematics effects. To comply with these requirements, we propose a new instrument called QUBIC (Q and U Bolometric Interferometer for Cosmology) based on bolometric interferometry. The control of systematics is obtained with a close-packed interferometer while bolometers cooled to very low temperature allow for high sensitivity. We present the architecture of this new instrument, the status of the project and the self-calibration technique which allows accurate measurement of the instrumental systematic effects.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
