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., P., Battistelli, E.S., A., B., D., B., L., B., J. P., B., DE BERNARDIS, P., M. A., B.S., G., B., A., B., E., B., E. F., B., Calvo, M., R., C., S., C., Cruciani, A., G., C., L., D., A., G., M., G., et al.. - 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.
