The FOREST detector for meson photoproduction experiments at ELPH

T. Ishikawa, H. Fujimura, H. Fukasawa, R. Hashimoto, T. Ishida, S. Kaida, J. Kasagi, A. Kawano, S. Kuwasaki, K. Maeda, F. Miyahara, K. Mochizuki, T. Nakabayashi, A. Nakamura, K. Nawa, S. Ogushi, Y. Okada, K. Okamura, Y. Onodera, Y. SaitoY. Sakamoto, M. Sato, H. Shimizu, H. Sugai, K. Suzuki, S. Takahashi, Y. Tsuchikawa, H. Yamazaki, H. Yonemura

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


An electromagnetic calorimeter complex, FOREST, has been constructed for meson photoproduction experiments at the Research Center for Electron Photon Science, Tohoku University. It consists of three types of calorimeters, which are made of pure cesium-iodide crystals, lead scintillating-fiber modules, and lead glass Cherenkov counters. Each calorimeter is equipped with a plastic scintillator hodoscope to identify charged particles. The design and performance of FOREST are described. The energy responses of test calorimeters have been investigated by using 100–800 MeV positron beams. The energy resolutions of the three calorimeters are found to be approximately 3%, 7%, and 5% for 1-GeV photons, respectively. A cryogenic hydrogen/deuterium target system fitted to the FOREST experiments and a newly developed data acquisition system are also presented.

Original languageEnglish
Pages (from-to)108-143
Number of pages36
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Publication statusPublished - 2016 Oct 1


  • CsI
  • Electro-magnetic calorimeter
  • Lead glass
  • Lead scintillating-fiber
  • Meson photo-production

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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