Rietveld analysis on layer silicates

[Roger Mason]

Hi,

I am interested in doing Rietveld work on layer silicates (especially
pyrophyllite at the moment). I anticipate that there may be some problems
in dealing with stacking disorder and different kinds of ordered stacking
sequences when developing a structural model for analysis.

Being new to Rietveld I am wondering if anyone has worked on this problem.

Thanks,

Roger Mason

gsas in dos & UNIX

[Roger Mason]

hello,

Does anyone know if it is possible to use the same *.EXP file on dos &
UNIX (Linux) machines?

If so, what changes must be made to the file?

Thanks in advance,

Roger Mason

weight fractions in GSAS .LST file

[Roger Mason]

Hello,

Firstly, thanks to those who answered my question about exchanging files
between the UNIX & DOS versions of GSAS.

Now I have more questions:

How do I get GSAS to report weight fractions & their uncertainties in a
.LST file? Having just completed some work on 4 samples I find that the
wt fractions have been calculated from the scale factors for some
samples but not others.

Also, how can I get GSAS to provide estimated uncertainties in the wt
fractions?

(I am aware that a microabsorption correction is not included in GSAS).

Thanks,

Roger Mason

DRAWxtl

[Roger Mason]

Hi,

Has anyone on the list used DRAWxtll? Perhaps you could contact me off
line.

I'm having some trouble and neither of the authors is reachable.

Thanks,

Roger Mason

Re: DRAWxtl

[Roger Mason]

Thanks to all who replied, especially Larry Finger & Martin Kroeker. All
is now working well.

Roger Mason


Roger Mason wrote:

> Hi,
>
> Has anyone on the list used DRAWxtll? Perhaps you could contact me off
> line.
>
> I'm having some trouble and neither of the authors is reachable.
>
> Thanks,
>
> Roger Mason

structure factors from GSAS

[Roger Mason]

Hi,

Does anyone know how to obtain a list of  structure factors from GSAS
calculated from the starting model, and without any corrections?

Thanks,

Roger Mason