Abstract :
Aleph is one of the four large high-energy physics experiments being completed for the LEP (Large Electron Positron) accelerator at CERN. Several hundred thousand detector elements deliver some 500 Mbytes of raw data per second. The author briefly describes the accelerator and the Aleph detector. He then discusses the design and implementation of the multilevel real-time data reduction and acquisition system, covering the requirements, the readout architecture, its implementation, data reduction, aspects of the detector-specific front-end electronics, and Aleph´s present status and performance
Keywords :
data acquisition; data reduction; nuclear electronics; physics computing; real-time systems; Aleph detector; LEP; Large Electron Positron; accelerator; data reduction; detector elements; detector-specific front-end electronics; implementation; multilevel real-time data reduction and acquisition system; readout architecture; requirements; Data acquisition; Detectors; Electron beams; Magnetic flux; Particle beams; Physics; Real time systems; Structural beams; Superconducting magnets; Time measurement;
