Dependence of Incoherent Nuclear Resonant Scattering of Synchrotron Radiation on the Number of Resonant Nuclei

DOI Web Site Web Site 参考文献29件
  • Masuda Ryo
    Research Reactor Institute, Kyoto University CREST, Japan Science and Technology Agency
  • Kitao Shinji
    Research Reactor Institute, Kyoto University CREST, Japan Science and Technology Agency
  • Kobayashi Yasuhiro
    Research Reactor Institute, Kyoto University CREST, Japan Science and Technology Agency
  • Seto Makoto
    Research Reactor Institute, Kyoto University Japan Atomic Energy Agency CREST, Japan Science and Technology Agency
  • Haruki Rie
    Center for Research and Advancement in Higher Education, Kyushu University CREST, Japan Science and Technology Agency
  • Zhang Xiao-Wei
    Institute of Materials Structure Science, High Energy Accelerator Research Organization CREST, Japan Science and Technology Agency
  • Kishimoto Shunji
    Institute of Materials Structure Science, High Energy Accelerator Research Organization CREST, Japan Science and Technology Agency

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説明

We have observed the incoherent nuclear resonant scattering (NRS) of synchrotron radiation from 57Fe in hematite by changing the number of resonant nuclei while the other conditions remained unchanged. The experiments elucidated that the elastic part in the incoherent NRS is not proportional to the number of resonant nuclei, while the inelastic part is proportional to it. We could explain the dependence of the incoherent scattering in the energy spectra on the number of resonant nuclei by means of an attenuation effect. We discussed the possibility for the application of the incoherent elastic scattering to the study of the electronic-state changes accompanied by phase transitions for nuclides with high-energy excited states.

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