Journal of Low Temperature Physics

, Volume 193, Issue 3–4, pp 298–304 | Cite as

Developments of Highly Multiplexed, Multi-chroic Pixels for Balloon-Borne Platforms

  • F. AubinEmail author
  • S. Hanany
  • B. R. Johnson
  • A. Lee
  • A. Suzuki
  • B. Westbrook
  • K. Young


We present our work to develop and characterize low thermal conductance bolometers that are part of sinuous antenna multi-chroic pixels (SAMP). We use longer, thinner and meandered bolometer legs to achieve 9 pW/K thermal conductance bolometers. We also discuss the development of inductor–capacitor chips operated at 4 K to extend the multiplexing factor of the frequency domain multiplexing to 105, an increase of 60% compared to the factor currently demonstrated for this readout system. This technology development is motivated by EBEX-IDS, a balloon-borne polarimeter designed to characterize the polarization of foregrounds and to detect the primordial gravity waves through their B-mode signature on the polarization of the cosmic microwave background. EBEX-IDS will operate 20,562 transition edge sensor bolometers spread over 7 frequency bands between 150 and 360 GHz. Balloon and satellite platforms enable observations at frequencies inaccessible from the ground and with higher instantaneous sensitivity. This development improves the readiness of the SAMP and frequency domain readout technologies for future satellite applications.


Balloon-borne Bolometer Sinuous antenna multi-chroic pixels Frequency domain multiplexing readout 



The EBEX-IDS collaboration would like to thank the support from NASA (NNX17AH30G).


  1. 1.
    BICEP2/Keck Collaboration and Planck Collaboration et al. Phys. Rev. Lett. 114, 101301 (2015).
  2. 2.
    A. Suzuki, Ph.D. Thesis, University of California, Berkeley, 2013Google Scholar
  3. 3.
    The EBEX Collaboration et al., Astrophys. J. (in prep)Google Scholar
  4. 4.
    C.M. Posada et al., Proc. SPIE 9914, 991417 (2016). CrossRefGoogle Scholar
  5. 5.
    A. Orlando et al., Proc. SPIE 7741, 77410H (2010). CrossRefGoogle Scholar
  6. 6.
    B. Westbrook et al., J. Low Temp. Phys. 184, 74 (2016). ADSCrossRefGoogle Scholar
  7. 7.
    A.N. Bender et al., Proc. SPIE 9153, 91531A (2014). CrossRefGoogle Scholar
  8. 8.
    M.A. Dobbs et al., Rev. Sci. Instrum. 83, 073113 (2012). ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Physics and AstronomyUniversity of MinnesotaMinneapolisUSA
  2. 2.Department of PhysicsColumbia UniversityNew YorkUSA
  3. 3.Department of PhysicsUniversity of California, BerkeleyBerkeleyUSA
  4. 4.Lawrence Berkeley National LabBerkeleyUSA

Personalised recommendations