Title :
Architecture of the HERA-B data acquisition system
Author :
Egorytchev, V. ; Essenov, S. ; Hernández, J. ; Rybnikov, V. ; Sánchez, F. ; Zhelezov, A.
Abstract :
The HERA-B experiment was dedicated for the measurement of CP-violation in decays of neutral B-mesons and for investigating the physics of charmed particles. One of the experimental requirements is a highly selective on-line filtering of data due to high interaction rates and a low signal-to-background ratio. This demands a hierarchical trigger and a high bandwidth data acquisition system. The challenge for the DAQ system is a readout free of deadtime, which requires an unprecedent speed of storing and processing the data. In this paper we will outline the general architecture and hardware implementation of the HERA-B DAQ.
Keywords :
data acquisition; high energy physics instrumentation computing; nuclear electronics; readout electronics; trigger circuits; CP-violation; DAQ system; HERA-B data acquisition system; charmed particles; data acquisition; deadtime; hardware implementation; hierarchical trigger; low signal-to-background ratio; neutral B-mesons; on-line filtering; Data acquisition; Detectors; Hardware; Magnetic switching; Particle tracking; Physics; Pipelines; Switches; Synchronization; Weight control;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2002 IEEE
Print_ISBN :
0-7803-7636-6
DOI :
10.1109/NSSMIC.2002.1239366
