An integrated data acquisition system for J-PARC hadron experiments

Youichi Igarashi, Masahiro Ikeno, Masatoshi Saito, Kazuo Nakayoshi, Manobu Tanaka, Tomonori Takahashi, Manabu Moritsu, Atsushi Okamura, Kenji Hosomi, Toshiyuki Takahashi, Kenta Itahashi

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


The J-PARC hadron experimental facility has now been completed and is starting operation. We plan to use several types of the readout systems based on CAMAC/FERA, VME bus, TKO, and KEK-VME/COPPER at the early stage of J-PARC hadron experiments. Therefore, we need to integrate many different data acquisition readouts. On the other hand, the network has become the most popular inter-subsystem communication method. Most readout systems have network interfaces or a controller which has network interfaces and talk with the TCP/IP protocol. Under this situation, we have developed network-based DAQ software and trigger/tag distribution system for J-PARC hadron experiments. The DAQ software works with a number of simple function processes and they communicate with each other using two pathways that we call DATA PATH and MESSAGE PATH. The detector data are transported through the DATA PATH and the controllable processes are controlled by the messages via the MESSAGE PATH. The trigger/tag distribution system (TDS) works with three module types, Master Trigger Module, Repeater and Receiver Module. The TDS distributes the timing signals such as the trigger and the event tag using a pair of category six standard network cables. The system works well without any critical issues in bench tests.We will use the system in several J-PARC hadron experiments, such as E05, E13 and other subsequent hadron experiments.

Original languageEnglish
Article number5446539
Pages (from-to)618-624
Number of pages7
JournalIEEE Transactions on Nuclear Science
Issue number2 PART 1
Publication statusPublished - Apr 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering


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