Hi Claire If you just model the phase with generic peaks, and no scale factor, it will be excluded from the Hill & Howard quantification algorithm. You're now in relative weight fraction world, and everything is scaled to 100%. You could also try DDM (Toraya 2016 and others) if you're keen, but depending on your aversion to patents, you might not want to.
Matthew On Wed, 1 Nov 2023 at 00:19, Claire Emily Boronski < claire.boron...@colorado.edu> wrote: > Hi All, > > > > I am trying to fit a large unknown amorphous phase. It is not being > properly fit by my background and being fit by broadening out the peaks of > other small phases present that should be crystalline. I did XRD-CT on a > lead pipe scale material and so I cannot spike the sample with a known > weight percentage of material with a similar absorption coefficient. Is > there any way that I can fit this unknown phase as just a general unknown > amorphous material and exclude it from the weight percent calculation? > > > > Thanks, > > Claire > > > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > Please do NOT attach files to the whole list <alan.he...@neutronoptics.com > > > Send commands to <lists...@ill.fr> eg: HELP as the subject with no body > text > The Rietveld_L list archive is on > http://www.mail-archive.com/rietveld_l@ill.fr/ > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > >
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Please do NOT attach files to the whole list <alan.he...@neutronoptics.com> Send commands to <lists...@ill.fr> eg: HELP as the subject with no body text The Rietveld_L list archive is on http://www.mail-archive.com/rietveld_l@ill.fr/ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
