White-beam topography of Rayleigh waves: a numerical study

Abstract

This paper analyses the contrast of white-beam stroboscopic synchrotron topographs of Rayleigh waves induced by a piezoelectric transducer in an -quartz crystal. The aim of the present investigation is to study the in¯uence of the crystal thickness and of the vibration amplitude on the image contrast. A periodic optimal thickness is found that maximizes the ®lm contrast.