Belle DAQ system upgrade at 2001

Soh Yamagata Suzuki, Ryosuke Itoh, Hyun Woo Kim, Hong Joo Kim, Hyun Ok Kim, Mikihiko Nakao, Eunil Won, Masanori Yamauchi

Research output: Contribution to journalConference articlepeer-review

11 Citations (Scopus)


We renewed the data acquisition system for the Belle experiment. Previous data acquisition system, which has been used since December 1998, did not have level 2 trigger facility. To improve the data reduction factor and total throughput, we replaced event builder, online computer farm and the storage system. The event builder and online computer farm are unified into one system. This event building farm uses commodity hardware and newly appended level 2 trigger functionality. This data acquisition system started its operation since last autumn and is very stable. We took 36 fb-1 with new DAQ system, it had already overtaken 30 fb-1 that is total amount of previous DAQ system.

Original languageEnglish
Pages (from-to)535-540
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1-3
Publication statusPublished - 2002 Nov 21
Externally publishedYes
EventINSTR02 - Novosibirisk, Russian Federation
Duration: 2002 Feb 282002 Mar 6


  • Belle
  • DAQ

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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