First Demonstration of Novel Method for Inelastic Neutron Scattering Measurement Utilizing Multiple Incident Energies

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  • Nakamura Mitsutaka
    Materials and Life Science Division, J-PARC Center
  • Kajimoto Ryoichi
    Materials and Life Science Division, J-PARC Center
  • Inamura Yasuhiro
    Materials and Life Science Division, J-PARC Center Research Organization for Information Science and Technology
  • Mizuno Fumio
    Materials and Life Science Division, J-PARC Center Department of Physics, Tohoku University
  • Fujita Masaki
    Institute for Materials Research, Tohoku University
  • Yokoo Tetsuya
    Materials and Life Science Division, J-PARC Center Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK)
  • Arai Masatoshi
    Materials and Life Science Division, J-PARC Center

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We succeeded in experimentally demonstrating that a series of two-dimensional maps of a dynamical structure factor in momentum–energy space with multiple incident energies can be simultaneously obtained by one measurement. This method reduces the dead time of time-of-flight measurement, and thus, it markedly increases the measurement efficiency. Our achievement realized using the Fermi chopper spectrometer 4SEASONS in J-PARC is expected to open up new possibilities of inelastic neutron scattering measurements.

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