Depth-selective x-ray standing-wave analysis

Abstract
Energy-dispersive electron emission yields from silicon crystals were measured while Bragg reflecting 15-keV x rays from the (111) diffraction planes. By combining the characteristics of the excited x-ray standing-wave field with the electron-energy-loss process, it was possible to probe the structure for lattice perfection as a function of depth and to determine an energy-loss-dependent electron escape length.