Bonn 2020 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 9: Instrumentation I

HK 9.3: Talk

Monday, March 30, 2020, 17:00–17:15, J-HS C

A new digital data acquisition system for AGATA at IKP Cologne — •Rouven Hirsch¹, Robert Hetzenegger¹, Dino Bazzacco², Jürgen Eberth¹, Herbert Hess¹, Lars Lewandowski¹, and Peter Reiter¹ — ¹IKP Universität zu Köln, Cologne, Germany — ²INFN - LNL, Padua, Italy

An AGATA triple cryostat (ATC) consists of three 36-fold segmented encapsulated large volume High Purity Germanium (HPGe) detectors. As part of any assembly or maintenance cycle the performance of the detector system has to be characterized. In the past multiple measurements with analog and digital electronics were needed to measure the required performance values. The existing setup was replaced with a new digital data aquisition system at the IKP Cologne. It is based on the latest AGATA phase 1 digital electronics and allows the simultaneous readout of all 111 high resolution spectroscopic channels of one ATC system. The main performance values such as the energy resolution, crosstalk, position resolution after pulse shape analysis (PSA) and γ-ray tracking of a complete ATC detector system were measured efficiently. Results obtained with the new data acquisition system demonstrate superior energy resolution and count rate capabilities. PSA and γ-ray tracking were performed in a time efficient way with high accuracy.