Distributed objects in action-first experience with the CLEO III data acquisition system

Author

Gwon, C. ; Honscheid, K. ; Hufnagel, D. ; Lorenc, J. ; Schwarthoff, H. ; Lipeles, E. ; Weinstein, A. ; Wuerthwein, F.W. ; Baker, R. ; Bebek, C. ; Kreinick, D. ; Strohman, C. ; Wolf, A. ; Frolov, V.

Author_Institution

Ohio State Univ., Columbus, OH, USA

fYear

1999

fDate

1999

Firstpage

54

Abstract

The CLEO III experiment-scheduled to begin data taking in August 1999-includes a 4 layer silicon vertex detector and a novel ring image Cherenkov detector to support particle identification. Drift chambers, EM calorimeters and muon chambers complete the detector assembly. Overall more than half a million electronic channels have to be read out and monitored. With trigger rates up to 1000 Hz the data volume to be handled by the DAQ system exceeds 30 MBytes/s. By the time of Realtime 99 most of the new components of the CLEO III detector will have been installed and the initial commissioning run for the DAQ and trigger system will be completed. We will present the architecture of the CLEO III DAQ system, but special emphasis will be placed on our experience with a large distributed system, with CORBA and Java as well as with objectivity as an event and constants database

Keywords

data acquisition; distributed processing; high energy physics instrumentation computing; position sensitive particle detectors; CLEO III detector; CORBA; Java; data acquisition system; distributed system; Assembly; Data acquisition; Detectors; Distributed databases; Java; Mesons; Monitoring; Silicon;

fLanguage

English

Publisher

ieee

Conference_Titel

Real Time Conference, 1999. Santa Fe 1999. 11th IEEE NPSS

Conference_Location

Sante Fe, NM

Print_ISBN

0-7803-5463-X

Type

conf

DOI

10.1109/RTCON.1999.842562

Filename

842562