EM calorimeter complex forest for the π0 and η photo-production experiments at LNS-Sendai

K. Suzuki, H. Fujimura, R. Hashimoto, T. Ishikawa, J. Kasagi, S. Kuwasaki, K. Mochizuki, K. Nawa, Y. Okada, Y. Onodera, M. Sato, H. Shimizu, Hirohito Yamazaki, A. Kawano, Y. Sakamoto, K. Maeda

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


A large solid angle γ-ray detector system, FOREST, has been constructed at LNS-Sendai to study the π0 and η photo-production reactions. The FOREST detector consists of three electro-magnetic calorimeters: pure CsI crystals, Lead/SciFi blocks and Lead Glass Cherenkov counters. It covers about 90% of the total solid angle. A new data acquisition system for the FOREST detector has been developed to handle high rate trigger events with a high efficiency. To investigate performances of FOREST and the DAQ system, a test experiment has been conducted. The π0 and η mesons are clearly observed. A DAQ efficiency of 76% has been obtained at a 2 kHz trigger request.

Original languageEnglish
Pages (from-to)978-981
Number of pages4
JournalModern Physics Letters A
Issue number11-13
Publication statusPublished - 2009 Apr 30


  • Baryon resonance
  • Electro-magnetic calorimeter
  • π/η photo-production

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics
  • Physics and Astronomy(all)


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