Makoto Kobayashi, T. Nishitani, A. Kato, T. Saze, Tomoyo Tanaka, S. Yoshihashi, K. Ogawa, M. Isobe
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Evaluation of imaging plate measurement for activated indium as fast-neutron detector in large radiation field
The application of imaging plate (IP) method using indium foils to measure the distribution of fast neutron in large area was evaluated in this work. The radioactive nuclides of indium were individually quantified by high-purity germanium detector (HPGe) and chronological IP measurements. The detection efficiencies of each radioactive nuclide for various thicknesses of foil mylar polyester film were summarized. The scope of application for proposed method were clearly dependent on the flux ratio of fast and thermal neutron, limiting the applicable region only being close to the neutron source.
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