Dear Maxim,
Actually, there are no standard notations for these parameters of TCH pV. In
different programs they are designated differently.
Regards,
Leonid
--- On Thu, 11/13/08, Maxim V. Lobanov <[EMAIL PROTECTED]> wrote:
> From: Maxim V. Lobanov <[EMAIL PROTECTED]>
> Subject: RE: question on size-strain analysis - question for Fullprof users
> To: rietveld_l@ill.fr
> Date: Thursday, November 13, 2008, 1:00 PM
> Dear Leonid,
> thank you very much. Indeed it is not "really
> simple": averaging procedure is not straightforward...
>
> Now a question to Fullprof users:
> it seems that Fullprof is using non-standard designation
> for TCH PV parameters.
> I mean by standard the one which is adopted e.g. in
> D.Balzar et al., JAC 37, 911 (2004) - formula 8b,
> i.e.
> Gamma_L = x/cos(theta) + X/cos(theta) + Y*tan(theta), i.e.
> Lorentzian size broadening is given by X value. GSAS is also
> using this notation.
>
> In the Fullprof manual it is stated that the designation is
> opposite:
> Gamma_L = X*tan(theta) + Y/cos(theta)
>
> I am curious if this is still the case, or maybe by chance
> it was corrected in some recent Fullprof update?
>
> Sincerely,
> Maxim.
>
