Author: Sato, D.
Paper Title Page
Development of a Linear Electron Accelerator-based Neutron Source for Analysis of Structural Materials  
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  • B.E. O’Rourke, T. Fujiwara, K. Kino, R. Kuroda, K. Michishio, H. Ogawa, N. Oshima, D. Sato, N. Sei, R. Suzuki, M. Tanaka, H. Toyokawa, A. Watazu
    AIST, Aichi, Japan
  • N. Hayashizaki
    RLNR, Tokyo, Japan
  • T. Muroga, T. Shishido
    ISMA, Ibaraki, Japan
  Funding: This paper is based on results obtained from Innovative Structural Materials R&D Project commissioned by the New Energy and Industrial Technology Development Organization(NEDO).
Neutrons are a powerful probe of structural materials due to their high penetration. As part of the Innovative Structural Materials R&D project funded by the New Energy and Industrial Technology Development Organization (NEDO), the Innovative Structural Materials Association (ISMA) is developing a dedicated, compact electron-accelerator based neutron source at the National Institute of Advanced Industrial Science and Technology (AIST) in Tsukuba, Japan, for the characterization of structural materials. The accelerator is designed to have a maximum electron beam power of 10 kW (~36 MeV and ~275 mA), which will be incident on a water-cooled Ta target. The electron beam will have a maximum pulse length of around 10 μs at a repetition rate of 100 Hz. Neutrons produced through photo-nuclear reactions will be cooled by a decoupled solid methane moderator. Using this pulsed, low-energy neutron beam we plan to perform various imaging spectroscopies of structural materials including Bragg-edge imaging. In this contribution we will describe the dedicated neutron source in more detail, with particular emphasis on the electron accelerator.
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