Absorption parameters in electron diffraction theory
- 1 July 1968
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 18 (151) , 115-122
- https://doi.org/10.1080/14786436808227313
Abstract
Values of the parameter Vg/Vg are calculated for 100 kv electrons as a function of the reflection vector g for different crystal temperatures and for a number of different materials. It is shown that the usual assumption made, namely setting V0 ′ = Vg ′ = 0·1 Vg independent of g or material, is often a very poor approximation. Calculations based on the inelastic scattering mechanisms involved show that for a given value of g the ratio Vg '/Vg increases with increasing temperature and increasing atomic weight of the material. For a given temperature and material, Vg '/ g increases approximately linearly with g over a wide range of g values.Keywords
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