Title :
Architecture of the HERA-B data acquisition system
Author :
Egorytchev, V. ; Essenov, S. ; Hernández, J.M. ; Rybnikov, V. ; Sánchez, F. ; Zhelezov, A.
Author_Institution :
Deutsches Elektronen-Synchrotron, Hamburg, Germany
Abstract :
The HERA-B experiment was dedicated for the measurement of charge conjugation space inversion (parity) (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 data acquisition (DAQ) system is a readout free of deadtime, which requires an unprecedented 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; signal processing; trigger circuits; HERA-B data acquisition system; architecture; charge conjugation space inversion; charmed particles; hierarchical trigger; highly selective on-line filtering; low signal-to-background ratio; readout; Bandwidth; Charge measurement; Current measurement; Data acquisition; Extraterrestrial measurements; Filtering; Hardware; Particle measurements; Physics; Space charge;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2003.814537
