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T: Fachverband Teilchenphysik

T 146: DAQ Systems, Exp. Methods

T 146.2: Vortrag

Donnerstag, 23. März 2023, 17:45–18:00, POT/0106

Online data reduction with the FPGA-based DATCON track reconstruction system at the Belle II Detector — Florian Bernlochner, Bruno Deschamps, Jochen Dingfelder, •Ralf Farkas, and Botho Paschen for the Belle II collaboration — Physikalisches Institut der Rheinischen Friedrich-Wilhelms-Universität Bonn

The DATCON system is a set of 15 FPGAs, deployed at the Belle II detector at the KEK facility in Tsukuba, Japan. Its purpose is the real-time reduction of the data stream of the two innermost PXD detector layers, by defining regions of interest (ROI) on them. Only the hit information of the pixels located inside these ROIs are to be further processed and saved. DATCON uses the information of the SVD layers of the detector, finds tracks using a Hough Transformation-based track reconstruction algorithm and extrapolates them towards the center of the detector, to the PXD layers. While the track reconstruction algorithm itself has already been validated both on Hardware and Software, further work is required to improve the stability and reliability of the system. This talk will highlight the recent changes and improvements of DATCON.