Darmstadt 2016 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 54: Instrumentation XV
HK 54.7: Vortrag
Donnerstag, 17. März 2016, 15:30–15:45, S1/01 A2
A real-time high level trigger system for CALIFA — Roman Gernhäuser, Benjamin Heiss, •Philipp Klenze, Patrick Remmels, and Max Winkel — Physik Department, Technische Universität München
The CALIFA calorimeter with its about 2600 scintillator crystals is a key component of the R3B setup. For many experiments CALIFA will have to perform complex trigger decisions depending on the total energy deposition, γ multiplicities or geometrical patterns with a minimal latency. This selection is an essential tool for the accurate preselection of relevant events and provides a significant data reduction.
The challenge is to aggregate local trigger information from up to 200 readout modules. The trigger tree transport protocol (T3P) will use dedicated FPGA boards and bus systems to collect trigger information and perform hierarchical summations to ensure a trigger decision within 1 µ s. The basic concept and implementation of T3P will be presented together with first tests on a prototype system.
Supported by BMBF (05P12WOFNF and 05P12WOFNA) and GSI (TMLFRG1316).