研究目的
Investigating the resonant inelastic scattering of two x-ray photons in the deep 1s-shell ionization threshold energy region of a free many-electron atom.
研究成果
The theory predicts a pronounced Kα,β-emission structure of the scattering spectrum and establishes the important role of the contact-interaction operator in the near post-threshold scattering region. The study provides a foundation for future experimental and theoretical investigations in this field.
研究不足
The study is limited by the nonrelativistic quantum perturbation theory framework and the Tamm–Dancoff approximation. Future investigations may explore beyond these approximations and include a wider series of scattering channels.
1：Experimental Design and Method Selection:
The study employs a nonrelativistic variant of quantum perturbation theory to analyze the resonant inelastic scattering process.
2：Sample Selection and Data Sources:
The atom of zinc (Zn) is chosen for its spherical symmetry and availability for high-precision XFEL experiments.
3：List of Experimental Equipment and Materials:
Theoretical study, no physical equipment used.
4：Experimental Procedures and Operational Workflow:
Theoretical analysis involving the construction of differential cross sections and probability amplitudes.
5：Data Analysis Methods:
Numerical integration and analytical estimation of the differential scattering cross section.
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