Study of TES Detector Transition Curve to Optimize the Pixel Design for Frequency-Division Multiplexing Readout

Journal article (2020)

Authors

Marcel L. Ridder SRON–Netherlands Institute for Space Research
K. Nagayoshi SRON–Netherlands Institute for Space Research
A. C.T. Nieuwenhuizen SRON–Netherlands Institute for Space Research
J.R. Gao Kavli institute of nanoscience Delft, ImPhys/Optics - AS , SRON–Netherlands Institute for Space Research
J. W. den Herder SRON–Netherlands Institute for Space Research
M. P. Bruijn SRON–Netherlands Institute for Space Research
L Gottardi SRON–Netherlands Institute for Space Research
E. Taralli SRON–Netherlands Institute for Space Research
Pourya Khosropanah SRON–Netherlands Institute for Space Research
H. Akamatsu SRON–Netherlands Institute for Space Research
J. Van Der Kuur SRON–Netherlands Institute for Space Research
K. Ravensberg SRON–Netherlands Institute for Space Research
S. Visser SRON–Netherlands Institute for Space Research
Research Group
ImPhys/Optics (AS) (TU Delft)
Copyright: © 2020 M. L. Ridder, K. Nagayoshi, M. P. Bruijn, L. Gottardi, E. Taralli, P. Khosropanah, H. Akamatsu, J. van der Kuur, K. Ravensberg, S. Visser, A. C.T. Nieuwenhuizen, J.R. Gao, J. W. den Herder
DOI: https://doi.org/10.1007/s10909-020-02401-w
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Published Date

2020

Language

English

Reuse Rights

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Faculty

Applied Sciences

Department

ImPhys/Imaging Physics

Research Group

ImPhys/Optics

Abstract

Superconducting transition-edge sensors (TESs) are highly sensitive detectors. Based on the outstanding performance on spectral resolution, the X-ray integral field unit (X-IFU) instrument on-board athena will be equipped with a large array of TES-based microcalorimeters. For optimal performance in terms of the energy resolution, it is essential to limit undesirable nonlinearity effects in the TES detector. Weak-link behavior induced on the TES by superconducting leads is such a nonlinearity effect. We designed and fabricated smart test structures to study the effect of the superconducting leads on the intrinsic transition curve of our TiAu-based TES bilayer. We measured and analyzed the resistance versus temperature transition curves of the test structures. We found relations of long-distance proximity effects with TES length and different lead materials. Based on these results, we can redesign and further optimize our TES-based X-ray detectors.

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