DAQ system for LEPS experiment

Y. Sugaya, J. K. Ahn, H. Akimune, Y. Asano, W. C. Chang, S. Date, M. Fujiwara, K. Hicks, T. Hotta, K. Imai, T. Ishikawa, T. Iwata, H. Kawai, Z. Y. Kim, Y. Kishimoto, N. Kumagai, S. Makino, N. Matsukoka, T. Matsumura, T. MibeS. Minami, M. Miyabe, Y. Miyachi, T. Nakano, M. Nomachi, Y. Ohashi, T. Ooba, C. Rangacharylu, A. Sakaguchi, T. Sasaki, D. Seki, H. Shimizu, M. Sumihama, H. Toki, T. Toyama, H. Toyokawa, A. Wakai, C. W. Wang, W. C. Wang, T. Yonehara, T. Yorita, M. Yosoi

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


A data acquisition (DAQ) system for experiments with the Laser Electron Photons at SPring-8 (LEPS) has been developed based on the network distributed architecture. The system is designed so as to transfer digitized data with a 1-kHz trigger rate from various front-end electronics. Four local DAQ systems with VME board computers at the front end play a role to provide modularity, scalability, and flexibility. Data from each local DAQ system are sent through fast Ethernet to the data server. With this DAQ system, experiments to measure θ photo-productions at LEPS started on May 2000. Signals from scintillation counters, drift chambers, and silicon strip detectors were successfully stored on disk. The performance of the present DAQ system is found to be good enough for the measurement.

Original languageEnglish
Pages (from-to)1282-1285
Number of pages4
JournalIEEE Transactions on Nuclear Science
Issue number4 I
Publication statusPublished - 2001 Aug
EventNuclear Science Symposium (NSS) 2000 - Lyon, France
Duration: 2000 Oct 152000 Oct 20


  • Data acquisition
  • Photon beams
  • Programmable logic devices
  • Radiation detectors


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