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Characterization of NbSi TES Bolometers: Preliminary Results

J. Martino 1 D. Prêle 1 M. Piat 2 F. Voisin 1 E. Bréelle 1 B. Belier 3 G. Bordier 1 S. Marnieros 4 F. Pajot 5 Y. Atik 5
2 APC - Cosmologie
APC (UMR_7164) - AstroParticule et Cosmologie
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière
Abstract : 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
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Submitted on : Wednesday, May 9, 2012 - 4:37:53 PM
Last modification on : Wednesday, November 17, 2021 - 12:32:55 PM

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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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