Hi all,
I have added a short discussion about so-called "Tube tails" into
the BGMN site. Please see
http://www.bgmn.de/device.html#tubetails
I cite from this site:
>Since the time of our first usage of fundamental parameters profile model,
>our measurements are disturbed by so-called "tube tail
Thanks to all for sending me the informations and sorry; I should find
by myself the BaSiF6 structure in ICSD, but in reality I look in there for
the CaSiF6 or similar structure (ABX6 and tetragonal), so I miss the BaSiF6
and I found some references on it just on the web.
In any case thanks f
At 10:14 19/11/1999 +0100, you wrote:
>Thanks to all for sending me the informations and sorry; I should find
>by myself the BaSiF6 structure in ICSD, but in reality I look in there for
>the CaSiF6 or similar structure (ABX6 and tetragonal), so I miss the BaSiF6
This is a common error when se
Dear Edouard,
You can try to refine the X parameter that follows U,V,W (FWHM
parameters) in the input file for FULLPROF. This will give you another degree
of freedom, in the sense that the eta parameter can now increase with 2theta
through the equation
You can also try another peak shape, Thompson-Cox-Hasting pseudo-Voigt
(npr=7) is suited is you have broadening from cristallite size or
microstrain. you refine U,V,W for Gaussian Component and Y,X for Lorentzian
Component. It can be wise not to refine the 5 components simutaneously;
first refi
Hello all,
In my experience GSAS always reports the weght fractions - and their
uncertainties - in the .LST file, as long as you have
atoms in all the phases, and are refining all but one of the phase
fractions under the selection L O S.
Has anyone else ever had the problem that Roger is asking
