Quantification of Electron Diffraction with Imaging Plate

Electron diffractin patterns of a Cu 3 Pd alloy were quantitatively analyzed by making good use of a wide dynamic range and good linearity of the imaging plate dedicated to an electron microscope. Intensities of both fundamental and supperlattice reflections of the alloy having a one-dimensional long-period superstructure were measured in situ as a function of the temperature. The intensity changes of the superlattice reflections quantitatively evaluated clearly show the caracteristic disordering process of the Cu 3 Pd alloy. It was demonstrated that quantitative structure analysis by electron diffraction patterns is possible with the use of the imaging plate if the dynamical diffraction effect is taken into account