Title :
A RISC multiprocessor event trigger for the data acquisition system of the H1 experiment at HERA
Author :
Campbell, Alan J.
Author_Institution :
Dept. of Phys. & Astron., Glasgow Univ., UK
fDate :
4/1/1992 12:00:00 AM
Abstract :
In late 1991 HERA (Hadron-Elektron Ring Anlage, Hamburg, Germany) collided for the first time stored beams of electrons and protons. A description is presented of the multiple RISC processor system for online event filtering and reconstruction installed within the data acquisition system of the H1 experiment. Data are processed at a continuous average rate of ~6 Mbyte/s in parallel by ~20 R3000 VMEbus-based monoboard computers providing some 400 MIPS of computing power
Keywords :
data acquisition; nuclear electronics; physics computing; reduced instruction set computing; storage rings; trigger circuits; H1 experiment; HERA; RISC multiprocessor event trigger; VMEbus-based monoboard computers; computing power; continuous average rate; data acquisition; electrons; online event filtering; protons; reconstruction; stored beams; Concurrent computing; Data acquisition; Electron beams; Event detection; Hardware; Particle beams; Particle tracking; Protons; Radiation detectors; Reduced instruction set computing;
Journal_Title :
Nuclear Science, IEEE Transactions on
