Ethernet-based data acquisition system for the DØ experiment at fermilab

B. Angstadt, G. Brooijmans, D. Chapin, D. Charak, M. Clements, D. Cutts, A. Haas, R. Hauser, M. Johnson, A. Kulyavtsev, S. Mattingly, M. Mulders, P. Padley, D. Petravick, R. Rechenmacher, G. Watts, D. Zhang

Research output: Contribution to journalConference article

Abstract

The DØ detector at Fermilab has been collecting data with its new, Ethernet-based Data Acquisition (DAQ) System since spring 2002. The system was built almost exclusively with commercially available components, and designed to read in event fragments at a rate of 1 kHz from about 70 VME crates, assemble the events with a typical size of 250 kB and pass them to the Level 3 trigger farm, composed of about 160 CPUs, for final event selection. Accepted events are sent to the online system to be stored on tape at an average rate of 50 Hz. The event fragments are read out over VME using Single Board Computers (SBCs) and sent to the trigger farm through 100 Mb/s and 1 Gb/s Ethernet connections via a series of Ethernet switches. This paper gives an overview of the main components of the DAQ and trigger system and reports on its performance during the first year of operation.

Original languageEnglish (US)
Article numberN31-1
Pages (from-to)961-963
Number of pages3
JournalIEEE Nuclear Science Symposium Conference Record
Volume2
StatePublished - Dec 1 2003
Externally publishedYes
Event2003 IEEE Nuclear Science Symposium Conference Record - Nuclear Science Symposium, Medical Imaging Conference - Portland, OR, United States
Duration: Oct 19 2003Oct 25 2003

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

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  • Cite this

    Angstadt, B., Brooijmans, G., Chapin, D., Charak, D., Clements, M., Cutts, D., Haas, A., Hauser, R., Johnson, M., Kulyavtsev, A., Mattingly, S., Mulders, M., Padley, P., Petravick, D., Rechenmacher, R., Watts, G., & Zhang, D. (2003). Ethernet-based data acquisition system for the DØ experiment at fermilab. IEEE Nuclear Science Symposium Conference Record, 2, 961-963. [N31-1].