Characterization of high aspect ratio TiAu TES X-ray microcalorimeters array using the X-IFU Frequency Domain Multiplexing readout

no code implementations • 18 Feb 2021 • E. Taralli, L. Gottardi, K. Nagayoshi, M. Ridder, S. Visser, P. Khosropanah, H. Akamatsu, J. van der Kuur, M. Bruijn, J. R. Gao

We are developing X-ray microcalorimeters as a backup option for the baseline detectors in the X-IFU instrument on board the ATHENA space mission led by ESA and to be launched in the early 2030s. 5$\times$5 mixed arrays with TiAu transition-edge sensor (TES), which have different high aspect ratios and thus high resistances, have been designed and fabricated to meet the energy resolution requirement of the X-IFU instrument.

Instrumentation and Detectors

Frequency Shift Algorithm: Application to a Frequency-Domain Multiplexing Readout of X-ray Transition-Edge Sensor Microcalorimeters

no code implementations • 11 Feb 2021 • D. Vaccaro, H. Akamatsu, J. van der Kuur, P. van der Hulst, A. C. T. Nieuwenhuizen, P. van Winden, L. Gottardi, R. den Hartog, M. P. Bruijn, M. D'Andrea, J. R. Gao, J. W. A. den Herder, R. W. M. Hoogeveen, B. Jackson, A. J. van der Linden, K. Nagayoshi, K. Ravensberg, M. L. Ridder, E. Taralli, M. de Wit

In the frequency-domain multiplexing (FDM) scheme, transition-edge sensors (TES) are individually coupled to superconducting LC filters and AC biased at MHz frequencies through a common readout line.

Instrumentation and Methods for Astrophysics