Low-noise readout of TES detectors with baseband feedback frequency domain multiplexing

  • Roland den Hartog*
  • , M.D. Audley
  • , J. Beyer
  • , D. Boersma
  • , M. Bruijn
  • , L. Gottardi
  • , H. Hoevers
  • , R. Hou
  • , G. Keizer
  • , P. Khosropanah
  • , Mikko Kiviranta
  • , P. de Korte
  • , J. van Der Kuur
  • , B.-J. van Leeuwen
  • , A.C.T. Nieuwenhuizen
  • , P. van Winden
  • *Corresponding author for this work

    Research output: Contribution to journalArticleScientificpeer-review

    25 Citations (Scopus)

    Abstract

    SRON is developing an electronic read-out system for an array of transition edge sensors (TES) based on the techniques of frequency domain multiplexing (FDM) and base-band feedback (BBFB). The astronomical applications of our system are the read-out of soft X-ray micro-calorimeters in a potential instrument on the European X-ray mission-under-study Athena and far-IR bolometers for the SAFARI instrument on the Japanese mission SPICA. In this paper we demonstrate the simultaneous locking of up to 51 BBFB loops. While locked, the in-band read-out noise of the loops is shown to reach the 10~pA/√Hz level required for these missions.
    Original languageEnglish
    Pages (from-to)652-657
    JournalJournal of Low Temperature Physics
    Volume167
    Issue number5-6
    DOIs
    Publication statusPublished - 2012
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Bolometers
    • frequency domain multiplexing
    • microcalorimeters
    • multiplexed read-out
    • transition edge sensors

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