[Ifeffit] Bump/oscillating pattern at high energies of EXAFS

[Anatoly Frenkel]

It is an effect of inhomogeneity of the sample, that is, the variation in
the metal density throughout the X-ray beam footprint.
Anatoly



On Thu, Nov 1, 2018 at 5:34 PM Raj kumar <rajrk37 at gmail.com> wrote:

> Dear All,
>
> I have monitored the growth process of YbVO4 nanoparticles using EXAFS.
> Here, nanoparticles were synthesized in water medium. Both initial and
> final products (EXAFS) of the synthesis were measured using the continuous
> flow approach whereas the intermediate products were recorded, in the glass
> capillary, using the stopped flow. In the attached figure, you can find the
> same (all products). At high energies of EXAFS, both initial and final
> measurements show smooth behavior whereas the oscillating pattern/bump was
> observed for the intermediate states.
>
> Here, my question is: Is the oscillating pattern appearing in the
> intermediate states due to the sedimentation/in-homogeneity of the product
> in the capillary or it is the characteristic of the synthesis?
>
> With regards,
> Raj
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