Susceptibility Study of TES Micro‑calorimeters for X‑ray Spectroscopy Under FDM Readout

Journal article (2022)

Authors

D. Vaccaro SRON–Netherlands Institute for Space Research
H. Akamatsu SRON–Netherlands Institute for Space Research
L Gottardi SRON–Netherlands Institute for Space Research
J. Van Der Kuur SRON–Netherlands Institute for Space Research
E. Taralli SRON–Netherlands Institute for Space Research
M. de Wit SRON–Netherlands Institute for Space Research
MP Bruijn SRON–Netherlands Institute for Space Research
R den Hartog SRON–Netherlands Institute for Space Research
J.R. Gao SRON–Netherlands Institute for Space Research, ImPhys/Optics - AS
More Authors... External organisation
Research Group
ImPhys/Optics (AS) (TU Delft)
Copyright: © 2022 D. Vaccaro, H. Akamatsu, L Gottardi, J. Van Der Kuur, E. Taralli, M. de Wit, MP Bruijn, R den Hartog, J.R. Gao, More Authors
DOI: https://doi.org/10.1007/s10909-022-02850-5
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Published Date

2022

Language

English

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Faculty

Applied Sciences

Department

ImPhys/Imaging Physics

Research Group

ImPhys/Optics

Abstract

We present a characterization of the sensitivity of TES X-ray micro-calorimeters to environmental conditions under frequency-domain multiplexing (FDM) readout. In the FDM scheme, each TES in a readout chain is in series with a LC band-pass filter and AC biased with an independent carrier at MHz range. Using TES arrays, cold readout circuitry and warm electronics fabricated at SRON and SQUIDs produced at VTT Finland, we characterize the sensitivity of the detectors to bias voltage, bath temperature and magnetic field. We compare our results with the requirements for the Athena X-IFU instrument, showing the compliance of the measured sensitivities. We find in particular that FDM is intrinsically insensitive to the magnetic fieldbecause of TES design and AC readout.

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