Title :
The DAQ of the COMPASS experiment
Author :
Schmitt, L. ; Angerer, H. ; Franz, N. ; Grube, B. ; Ketzer, B. ; Konorov, I. ; Kuhn, R. ; Liebl, W. ; Paul, S. ; Fischer, H. ; Grunemaier, A. ; Heinsius, F.-H. ; Königsmann, K. ; Schmidt, T. ; Fuchs, U. ; Lamanna, M.
Author_Institution :
Phys.-Dept., TU Munchen, Garching, Germany
fDate :
6/1/2004 12:00:00 AM
Abstract :
COMPASS is a fixed target experiment at CERN´s SPS. In 2002, a first physics run was completed with 260 TB of data recorded, corresponding to 5 billion events. The data acquisition architecture is based on custom frontends, buffers based on PCI cards, and server PCs networked via Gigabit Ethernet. A custom timing and trigger distribution system provides unique event identification and time synchronization. Results on the performance of the system and an outlook to improvements using online filtering will be given.
Keywords :
buffer storage; data acquisition; high energy physics instrumentation computing; local area networks; nuclear electronics; optical fibres; particle spectrometers; CERN SPS; COMPASS fixed target experiment; COMPASS spectrometer; DAQ; Gigabit Ethernet; PCI cards; S-Link; buffer memories; custom frontends; data acquisition architecture; event identification; first physics run; online filtering; optical fiber devices; server PC; time synchronization; trigger control system; Data acquisition; Detectors; Electromagnetic scattering; Magnetic separation; Mesons; Nuclear measurements; Optical fiber polarization; Optical scattering; Physics; Spectroscopy; Buffer memories; COMPASS; S-Link; data acquisistion; optical fiber devices; trigger control system;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2004.829386
