Heidelberg 2015 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

HK: Fachverband Physik der Hadronen und Kerne

HK 59: Instrumentation 17

HK 59.1: Gruppenbericht

Donnerstag, 26. März 2015, 17:00–17:30, M/HS1

Results of the first Tests Measurements using the Prototype Trigger-Less Data Acquisition for the
PANDA Experiment — Milan Wagner, Thomas Geßler, •Wolfgang Kühn, Sören Lange, Björn Spruck, and Marcel Werner for the PANDA collaboration — JLU Gießen

The PANDA detector will be a located at the high energy storage ring (HESR), at the facility for anti protons and ion research (FAIR) in Darmstadt, Germany. It will operate with a very high average interaction rate of about 20 MHz, in a free streaming mode without hardware trigger. Instead of triggering, data filtering will be performed by complete online event reconstruction with a highly parallelized farm of FPGAs as first level and on a farm of GPUs or PCs as a second level. The requirement is a background reduction by a factor of >1000. Parts of the PANDA detector will be pre-assembled and tested at the Forschungszentrum Jülich, before being transported to GSI at a later stage. A prototype trigger-less data acquisition (PTDAQ) will be used during this phase. The main component of the PTDAQ is the Compute Nodes (CN), a xTCA-compliant board based on a Virtex-5 FX70T FPGA, with a µTCA-formfactor. Synchronization is done via a Synchronization Of Data Acquisition (SODA) source. Parts of the functionality were tested in a setup using a 210 MeV electrons beam with a rate of 1 MHz at the Mainz Microtron. In this contribution, we present the first results of test measurements using the PTDAQ system. This work is supported by BMBF(05P12RGFPF), HGS-HIRe for FAIR and the LOEWE-Zentrum HICforFAIR.