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13 December 2020Warm front end electronic modelization for the X-IFU ATHENA readout chain simulation
Damien Prêle,1 Si Chen,1 Alexis Coleiro,1 Peggy Varniere,1 Philippe Peille,2 Laurent Ravera,3 Christian Kirschhttps://orcid.org/0000-0001-6293-15384
1Astroparticule et Cosmologie, Univ. de Paris (France) 2Ctr. National d'Études Spatiales (France) 3Institut de Recherche en Astrophysique et Planétologie (France) 4Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
The X-ray Integral Field Unit (X-IFU) of the ATHENA space observatory is based on a 3 kilo-pixels array of superconducting micro-calorimeters, that is read out with the Warm Front-End Electronics (WFEE) and then followed by the Digital Readout Electronics (DRE) outside the cryostat. We have developed low-noise/lowdrift amplifiers for this readout as well as performed simulations and measured the noise, bandwidth, linearity, harmonic distortion and thermal drift. Here we are presenting a realistic model of these parameters. These characterizations and models of the WFEE are necessary in order to get a full ATHENA X-IFU readout chain simulator. Impact of the WFEE low-frequency noise and its limited bandwidth on the entire X-IFU detection chain in Time Domain Multiplexing will be introduced.
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Damien Prêle, Si Chen, Alexis Coleiro, Peggy Varniere, Philippe Peille, Laurent Ravera, Christian Kirsch, "Warm front end electronic modelization for the X-IFU ATHENA readout chain simulation," Proc. SPIE 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray, 114443U (13 December 2020); https://doi.org/10.1117/12.2560367