Development and demonstration results of the digital readout electronics for the NewAthena X-IFU instrument

Le résumé fourni par la source

The Digital Readout Electronics (DRE) plays a critical role in signal acquisition and processing from the Transition Edge Sensor (TES) array. Developed for Time Domain Multiplexing (TDM) readout, this system builds on experience from Frequency Domain Multiplexing prototypes and addresses the challenges specific to high-resolution X-ray detection. The DRE is responsible for generating row selection signals, sampling pixel error outputs, and producing feedback and dynamic offset compensation signals to ensure accurate readout from the MUX SQUIDs. It performs real-time event detection, extracting 8192-sample data records at a sampling frequency of 130.2 kHz, and processes them to determine photon arrival time, energy, and event grade. Final photon energy values are calibrated on-ground using gain scale corrections.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.