Journal of Low Temperature Physics

, Volume 167, Issue 3, pp 176–181

Characterization of NbSi TES Bolometers: Preliminary Results

  • J. Martino
  • D. Prele
  • M. Piat
  • F. Voisin
  • E. Breelle
  • B. Belier
  • G. Bordier
  • S. Marnieros
  • F. Pajot
  • Y. Atik
Article

DOI: 10.1007/s10909-012-0515-9

Cite this article as:
Martino, J., Prele, D., Piat, M. et al. J Low Temp Phys (2012) 167: 176. doi:10.1007/s10909-012-0515-9

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 \(10^{-16}\ \mathrm{W}/\sqrt{\mathrm{Hz}}\). Those detectors are developed for the QUBIC experiment, a B-modes telescope that will be deployed in Antactica in 2013.

Keywords

TESBolometersNbSiCosmic microwave backgroundNoiseComplex impedance

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • J. Martino
    • 1
  • D. Prele
    • 1
  • M. Piat
    • 1
  • F. Voisin
    • 1
  • E. Breelle
    • 1
  • B. Belier
    • 2
  • G. Bordier
    • 1
  • S. Marnieros
    • 3
  • F. Pajot
    • 4
  • Y. Atik
    • 4
  1. 1.APC 10Paris Cedex 13France
  2. 2.IEF, Bt. 220Universit Paris Sud-11OrsayFrance
  3. 3.CSNSM, Bt. 104Universit Paris Sud-11OrsayFrance
  4. 4.IAS, Bt. 121Universit Paris Sud-11OrsayFrance