Hi Mike:
How are you trying to fit it? It looks to me like the post edge line is
not in the right place. You need to tune it by hand when you have such a
short energy range after the edge since the normalization is critically
dependent on how you set this line.
carlo
On Tue, 15 Jan 2019, Mike Massey wrote:
Hi All,
Does anyone have advice for LCF of spectra with a small edge step?
I've recently found myself with more and more issues fitting spectra like the
one shown in the attached photo, where the spectrum is of good quality, but the
fits end up not working out due to normalization (as far as I can tell).
Sadly, I have so far ended up just throwing these fits out, but I'm hoping
there is a better solution out there that someone might be able to recommend.
One solution is "get more of the element of interest," as a beamline scientist
recently told me. I'm just reluctant to really load it up in the data collection, because
at 2 keV I get nervous about artifacts like self-absorption.
Is there a better way? What am I missing?
Thanks for your thoughts,
Mike
--
Carlo U. Segre -- Duchossois Leadership Professor of Physics
Interim Chair, Department of Chemistry
Director, Center for Synchrotron Radiation Research and Instrumentation
Illinois Institute of Technology
Voice: 312.567.3498 Fax: 312.567.3494
se...@iit.edu http://phys.iit.edu/~segre se...@debian.org
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