INTERACTION OF SURFACE ACOUSTIC WAVES WITH ELECTRON AND X-RAY BEAMS

Abstract

The work covers the surface acoustic waves (SAW) propagating on the surface of the piezo- and ferroelectric crystals. The mechanism of influencing surface charges on the emission of the secondary electrons and on the scattering of the electrons during electron-ray exposure of the oncoming-pin converter structures has been determined. The mechanism of forming potential contrast of the SAW picture in the scanning electron microscope has been determined. The possibilities of excitating SAW with the domen structure, focussing SAW with the bended domen structures, refracting SAW from domen walls, using domen structures as the acoustic waveguides have been determined. The basic regularities have been specified, and the theories of the X-ray radiation diffraction on the ultrasonic super-lattices in the conditions of the total external refraction and in the conditions of the Bragg diffraction in case of the multi--layer interferention X-ray mirrors modulated by SAW have been created. The time modulation of the X-ray radiation proposed for creation of the single ultrashort pulses of X-ray radiation used in the X-ray spectroscopy with high time resolution is used on the synchrotronic X-ray radiation sources.Available from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio