Evolution of x-ray resonance Raman scattering into x-ray fluorescence from the excitation of xenon near theL3edge

Near an absorption edge, x-ray emission cannot be treated separately from the absorption process itself; a scattering formalism must be used. Experimental data have been recorded showing x-ray emission from xenon following excitation by tunable synchrotron radiation below and above the ${\mathit{L}}_3$ absorption edge. Complete data sets are presented for Xe L${\mathrm{\alpha }}_{1,2}$ and L${\mathrm{\beta }}_{2,15}$ emission from 10 eV below to 40 eV above the ${\mathit{L}}_3$ edge. In accord with the resonant-inelastic-scattering model, the observed x-ray emission evolves from resonant Raman scattering into characteristic fluorescence as the excitation energy is scanned from below to above the absorption edge.