Investigation of ultrasonic fields by time-resolved x-ray diffraction

Klaus-Dieter Liss; Andreas Magerl; Rainer Hock; Boris Waibel; Arndt Remhof

doi:10.1117/12.331833

1 December 1998 Investigation of ultrasonic fields by time-resolved x-ray diffraction

Klaus-Dieter Liss, Andreas Magerl, Rainer Hock, Boris Waibel, Arndt Remhof

Proceedings Volume 3451, Time Structure of X-Ray Sources and Its Applications; (1998) https://doi.org/10.1117/12.331833
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

Time resolved detection in both detector and synchrotron resolution mode are presented. Using this technique the response of the Bragg profile in perfect Silicon to a MHz ultrasonic wave field has been studied on the high resolution triple crystal diffractometer at the ESRF high energy beamline ID15A. High photon energies up to 500 keV have been used for the analysis of a longitudinal acoustic wave in the 10 mm bulk. First, conventional time averaged rocking curves show intensity gains by up to a factor of 50, and a reciprocal space mapping reveals full information on the acoustic wave vector. Secondly, time and space resolved reflection curves have been taken. They give detailed insights into the properties of the acoustic wave field in space and time. In particular, they allow us to identify uniquely true standing waves without parasitic strain components or higher harmonic excitation. Time averaged and snapshots of the time resolved rocking curves represent different aspects of the density of states for the lattice parameter distribution. They are understood analytically by the elliptic integral K and the inverse circle function, respectively.

Citation Download Citation

Klaus-Dieter Liss, Andreas Magerl, Rainer Hock, Boris Waibel, and Arndt Remhof "Investigation of ultrasonic fields by time-resolved x-ray diffraction", Proc. SPIE 3451, Time Structure of X-Ray Sources and Its Applications, (1 December 1998); https://doi.org/10.1117/12.331833

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