Title :
Data acquisition system for the Belle experiment
Author :
Nakao, M. ; Yamauchi, M. ; Suzuki, S.Y. ; Itoh, R. ; Fuji, H.
Author_Institution :
Nat. High Energy Accel. Res. Organ., Ibaraki, Japan
fDate :
4/1/2000 12:00:00 AM
Abstract :
We built a data acquisition system for the Belle experiment at the KEK B-factory. The system is designed to record the signals from the detectors at 500 Hz trigger rate with a less than 10% dead time fraction. A typical event size is 30 kbyte, which corresponds to a data transfer rate of 15 Mbyte/s. Main components are two kinds of detector readout systems, an event builder, an online computer farm and a data storage system. The system has been reliably in operation at the design performance for a half year. We have completed cosmic-ray data taking for 2.5 months and have started physics data taking on Jun. 1, 1999
Keywords :
Cherenkov counters; data acquisition; drift chambers; high energy physics instrumentation computing; nuclear electronics; readout electronics; silicon radiation detectors; solid scintillation detectors; 15 Mbyte/s; Belle experiment; KEK B-factory; cosmic-ray data taking; data acquisition system; data storage system; data transfer; detector readout systems; event builder; online computer farm; physics data taking; Control systems; Counting circuits; Data acquisition; Detectors; Event detection; Physics; Production; Strips; Time division multiplexing; Timing;
Journal_Title :
Nuclear Science, IEEE Transactions on
