| 摘要 |
A specimen of thin film of a material having a crystal structure and exhibiting an absorption in ultraviolet region is irradiated with electron beams and the energy loss spectrum of the reflected electrons is observed and utilized. For example, the correlations of (1) the energy of the plasmon peak and the relative intensity of the plasmon peak to the elastic peak or the profile thereof, (2) the energy (loss energy being between 4 and 8 eV) of the peak attributed to pi->pi* transition and the relative intensity of the pi->pi* peak to the elastic peak or the profile thereof and (3) the profile of the background of the continuous spectrum formed by inelastic scattering of electrons or the relative intensity of a point to the elastic peak and the average crystallite size of the material of the specimen are used to determine the crystallite size of the material.
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