Print Email Facebook Twitter Small Size Transition-Edge Sensors for Future X-Ray Applications Title Small Size Transition-Edge Sensors for Future X-Ray Applications Author Taralli, E. (SRON Netherlands Institute for Space Research) de Wit, M. (SRON Netherlands Institute for Space Research) Gottardi, L. (SRON Netherlands Institute for Space Research) Nagayoshi, K. (SRON Netherlands Institute for Space Research) Visser, S. (SRON Netherlands Institute for Space Research) Ridder, M.L. (SRON Netherlands Institute for Space Research) Akamatsu, H. (SRON Netherlands Institute for Space Research) Vaccaro, D. (SRON Netherlands Institute for Space Research) Gao, J.R. (TU Delft ImPhys/Optics; SRON Netherlands Institute for Space Research) Date 2022 Abstract Large arrays of transition edge sensors (TESs) are the baseline for a number of future space observatories. For instance, the X-ray integral field unit (X-IFU) instrument on board the ATHENA space telescope will consist of ∼ 3000 TESs with high energy resolution (2eV at X-ray energies up to 7 keV). In this contribution we report on the development of an X-ray TES array as a backup detector technology for X-IFU. The baseline readout technology for this mission is time domain multiplexing where the detectors are DC biased. Specifically, we report on the characterization of four different Ti/Au TESs with the following dimensions (L × W): 30 × 15 , 30 × 30 , 50 × 25 and 50×50μm2, all of which are coupled to a 2.3μm thick Au absorber of area 240×240μm2. We have performed our characterization using our standard frequency domain multiplexing readout connecting only pixels at low frequencies, where nonlinear effects due to the AC biasing are negligible. Promising energy resolution has been obtained, for instance 1.78±0.10eV and 1.75±0.10eV at 5.9 keV for the 50 × 25 and 50×50μm2 detectors respectively. Uniformity over a kilo-pixel array (of detectors with the same geometry) has been also studied, confirming the high quality of our fabrication process. Subject Critical inductanceEnergy resolutionProximity effectTESX-IFU To reference this document use: http://resolver.tudelft.nl/uuid:a99ac4bd-cf1d-4957-b04c-f6eaa955e3dc DOI https://doi.org/10.1007/s10909-022-02709-9 ISSN 0022-2291 Source Journal of Low Temperature Physics, 209 (3-4), 256-262 Part of collection Institutional Repository Document type journal article Rights © 2022 E. Taralli, M. de Wit, L. Gottardi, K. Nagayoshi, S. Visser, M.L. Ridder, H. Akamatsu, D. Vaccaro, J.R. Gao, More Authors Files PDF Taralli2022_Article_Small ... Sensor.pdf 1.71 MB Close viewer /islandora/object/uuid:a99ac4bd-cf1d-4957-b04c-f6eaa955e3dc/datastream/OBJ/view