Pulse detection and processing in TES X-ray detectors

Maria Teresa Ceballos (Instituto de Física de Cantabria (CSIC-UC)), B. Cobo (IFCA), R. Fraga-Encinas (IFCA), J. van der Kuur (SRON), J. Schuurmans (SRON)


The ATHENA (Advanced Telescope for High ENergy Astrophysics) mission, currently under study by the European Space Agency (ESA), will carry on board an X-ray imaging calorimeter spectrometer (XMS) based on Transition Edge Sensor (TES) technology.

We present here the software chain designed to detect and analyze the pulses generated in this type of devices in response to the incoming X-ray photons. This code is currently being developed under a collaboration between IFCA (Spain) and SRON (NL) institutes, as part of a larger project involving many other institutes in Europe and USA, created to design the TES prototype proposed for the previous XEUS ESA mission.

This software chain comprises five individual tasks (trigger, pulseshape, filter, energyresol and holzgauss) aimed at the maximization of pulse detection capabilities and at the calculation of the energy content of the pulses. In addition, the energy resolution of the device is determined for calibration purposes. We also present here the preliminary results of the tests designed to check the chain results (pulses in excess/lack of pulses, energy content, etc.)

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Paper ID: P021

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