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6 July 2018 High impedance TES with classical readout electronics: a new scheme toward large x-ray matrices
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Abstract
High impedance transition edge sensors (TES) are good candidates to constitute the sensitive part of new X-ray spectroimagers for the spatial X-ray observation, with even greater number of pixels. We test this solution in this context, developing an original scheme of readout that consist in implementing an active electro-thermal feedback, performed by a low noise cryogenic electronics, in order to solve the problematic effects of the electron-phonon decoupling, to ensure the stability of the system, and to increase the dynamic range of the detector. This paper presents the status of our developments, including the characterisation of the sensor, the experimental test of the active electro-thermal feedback, and our very first results of photon detection.
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Galahad Jego, Xavier de la Broïse, Jean-Luc Sauvageot, Xavier Coppolani, Stefanos Marnieros, and Louis Dumoulin "High impedance TES with classical readout electronics: a new scheme toward large x-ray matrices", Proc. SPIE 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray, 106995T (6 July 2018); https://doi.org/10.1117/12.2315624
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