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 language | English |
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Article number | 167727 |
Journal | Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 1046 |
DOIs | |
Publication status | Published - 11 Jan 2023 |
MoE publication type | A1 Journal article-refereed |
Funding
SRON is financially supported by the Nederlandse Organisatie voor Wetenschappelijk Onderzoek, The Netherlands. This work is part of the research programme Athena with project number 184.034.002, which is (partially) financed by the Dutch Research Council (NWO, The Netherlands). The SRON TES arrays used for the measurements reported in this paper is developed in the framework of the European Space Agency /CTP grant ITT AO/1-7947/14/NL/BW. This work is part of the research programme Athena with project number 184.034.002 , which is (partially) financed by the Dutch Research Council ( NWO, The Netherlands ).
Keywords
- Athena X-IFU
- Frequency domain multiplexing
- Squid
- Superconductivity
- Transition-edge sensors
- X-ray micro-calorimeters