>Very often, a simple assumption that
>size-broadened profile has both Lorentzian and Gaussian terms yields
>satisfactory results.
Well, this assumption is easily entered in a pseudo-Voigtian or Voigtian
profile shape model. But the corresponding size Fourier coefficients
AnS are never checked in order to see to what size distribution
function the final profile shape is really corresponding to. This is
something easy to do : calculate the cosinus Fourier transform,
then calculate the second derivative, and see how is the
corresponding size distribution function. I have never seen
that elementary calculation done. Hope you agree with me
that a serious approach should not avoid such an ultimate
checking ?
Can you already disclose some "exact" results on the CeO2
sample from D. Louër ? I am sure that he would not have
distributed that sample without having realized a deep
characterization.
Best,
Armel
