of course you should, Ana!
The coordinate of the origin depends on goniometer alignment which may
change from one diffraction to the next although, in my experience,
deviations from 0 are mostly the same.
What should be fixed is the unit cell parameter of Si, but there is
considerable discus
dear Nayda,
a bit late, but may be still useful for you:
we worked on Rietveld refinement of a birnessite impurity considering
various stacking types - without much success, but in our ms you can
find references to different models, and a quite surprising result for
our "birnessite" sample.
Jon
On 29/07/2015 14:10, Natale Perchiazzi wrote:
Hola Miguel,
A Gandolfi like setup would be definitely easier. I guess you
suggest alternatevely to crush and dilute the material in a matrix?
!
Cheers Natale
Inviato da Yahoo Mail su Android [1]
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DA:"GREGORKIEWIT
Dear Natale,
do you think about a Gandolfi like setup? Or can the fragments be
crushed?
best
Miguel
---
michele gregorkiewitz
Dip Scienze Fisiche, della Terra e dell'Ambiente
Università di Siena
via Laterina 8, I-53100 Siena
gre...@unisi.it, +39'0577'233810
Il 2015-07-29 11:33 Natale Perc
dear Othman,
you might try a program called "buits" which allows, if I remember well,
to define the radius of a "probe" used to fill up empty space with an
irregular surface.
The reference is
Jordi Rius. J Appl Cryst (1991) 24, 187-189.
We used this program to determine void volumes in ioni
what's going on, Alan? Are you getting older and disappointed through
attachments and other misachievements of life? I really don't hope so,
because, for me, I eagerly follow the rietveld list and I think that
many more people actually does so!
chears
Miguel
---
michele gregorkiewitz
Dip Sc
