Frequency domain multiplexing readout for large arrays of transition-edge sensors

D. Vaccaro*, H. Akamatsu, L. Gottardi, M. P. Bruijn, A. J. van der Linden, B. J. van Leeuwen, P. van der Hulst, C. P. de Vries, J. R. Gao, More Authors

*Corresponding author for this work

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Abstract

We report our most recent progress and demonstration of a frequency domain multiplexing (FDM) readout technology for transition-edge sensor (TES) arrays, both of which we have been developing in the framework of the X-IFU instrument on board the future Athena X-ray telescope. Using Ti/Au TES micro-calorimeters, high-Q LC filters and analog/digital electronics developed at SRON and low-noise two-stage SQUID amplifiers from VTT Finland, we demonstrated the feasibility of our FDM readout technology, with the simultaneous readout of 37 pixels with an energy resolution of 2.23 eV at an energy of 6 keV. We finally outline our plans for further scaling up and improving our technology in the future.

Original languageEnglish
Article number167727
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume1046
DOIs
Publication statusPublished - 2023

Keywords

  • Athena X-IFU
  • Frequency domain multiplexing
  • Squid
  • Superconductivity
  • Transition-edge sensors
  • X-ray micro-calorimeters

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