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Communication Dans Un Congrès Année : 2012

Characterization of NbSi TES Bolometers: Preliminary Results

Résumé

We present preliminary results on characterisation of voltage biased superconducting bolometers with an NbSi alloy sensor. I(V) curves as well as complex impedance and noise measurements are carried out in a dilution fridge with a pulse tube as a first stage cooler. SQUIDs polarization and addressing are controlled by a cold ASIC in which a SiGe amplifier has been implemented. First characterisations were done on full membrane bolometers and show a noise level of about 10(-16) W/root Hz. Those detectors are developed for the QUBIC experiment, a B-modes telescope that will be deployed in Antactica in 2013

Dates et versions

in2p3-00695717 , version 1 (09-05-2012)

Identifiants

Citer

J. Martino, D. Prêle, M. Piat, F. Voisin, E. Bréelle, et al.. Characterization of NbSi TES Bolometers: Preliminary Results. 14th International Workshop on Low Temperature Particle Detection (LTD), Aug 2011, Heidelberg, Germany. pp.176-181, ⟨10.1007/s10909-012-0515-9⟩. ⟨in2p3-00695717⟩
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