München 2019 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 24: Instrumentation V

HK 24.2: Talk

Tuesday, March 19, 2019, 14:15–14:30, HS 11

Evaluation of different feature extraction methods for the CBM-TRD. — •Florian Roether for the CBM collaboration — Institut für Kernphysik, Frankfurt, Deutschland

The Compressed Baryonic Matter (CBM) experiment at the Facility for Antiproton and Ion Research (FAIR) will explore the QCD phase-diagram in the region of high net-baryon densities. The Transition Radiation Detector (TRD) with its multi-layer-design will provide electron identification and contribute to particle tracking as well as the identification of light nuclei.

The detector signals will be digitized by the Self-triggered Pulse Amplification and Digitization ASIC (SPADIC), collected by the GBTx based Readout Board (ROB) and pre-processed by the Data Processing Board (DPB). This process of time ordering and feature extraction of the raw data stream is crucial for the subsequent processing and data storage.

The SPADIC allows to set a mask which defines what part of the time evolution of the signal is read out. This requires different algorithms to extract the information of interest, like e.g. position and energy deposition out of the raw data stream. In this talk the focus will be on the evaluation of different feature extraction methods based on data from simulations and a DESY test beam campaign performed in 2017.

This work is supported by BMBF-grant 05P15RFFC1.