MEASUREMENTS OF CORE-HOLE LOCALIZATION IN X-RAY RAMAN-SCATTERING

The problem of core hole localization in symmetrical systems is a fund amental problem of x-ray spectroscopy and concerns some basic aspects of quantum theory. Recent theoretical as well as experimental investig ations of resonant x-ray Raman scattering indicate that the solution t o this problem depends on the measurement. In the present work we prop ose an experimental scheme which allows a direct measurement of the at om to which the core hole is localized. The idea behind the proposal i s based on the electron Doppler effect and the photoelectron-photoion coincidence technique. (C) 1998 American Institute of Physics.