[Ifeffit] book chapter

[Kelly, Shelly]

Oh drat.  I didn't realize that this went to the whole list.  Sorry for
filling up your email box.  

Shelly

> -----Original Message-----
> From: ifeffit-bounces at millenia.cars.aps.anl.gov [mailto:ifeffit-
> bounces at millenia.cars.aps.anl.gov] On Behalf Of Kelly, Shelly
> Sent: Thursday, January 15, 2009 12:47 PM
> To: XAFS Analysis using Ifeffit
> Subject: Re: [Ifeffit] book chapter
> 
> Wow!  That is one of the best requests. Here you go.
> 
> Cheers,
> Shelly
> 
> > -----Original Message-----
> > From: ifeffit-bounces at millenia.cars.aps.anl.gov [mailto:ifeffit-
> > bounces at millenia.cars.aps.anl.gov] On Behalf Of Hashem Stietiya
> > Sent: Thursday, January 15, 2009 12:25 PM
> > To: ifeffit at millenia.cars.aps.anl.gov
> > Subject: [Ifeffit] book chapter
> >
> > Dr. Kelly,
> >
> > I would be thrilled if you could send me a copy.
> >
> > Thank you,
> >
> > Hashem Stietiya
> > Louisiana State University
> >
> > -----Original Message-----
> > From: ifeffit-bounces at millenia.cars.aps.anl.gov
> > [mailto:ifeffit-bounces at millenia.cars.aps.anl.gov] On Behalf Of
> > ifeffit-request at millenia.cars.aps.anl.gov
> > Sent: Thursday, January 15, 2009 12:00 PM
> > To: ifeffit at millenia.cars.aps.anl.gov
> > Subject: Ifeffit Digest, Vol 71, Issue 16
> >
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> > Today's Topics:
> >
> >    1. Re: distinguishing between actual shells and artifacts
> >       (Kelly, Shelly)
> >
> >
> >
----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Wed, 14 Jan 2009 13:58:21 -0700
> > From: "Kelly, Shelly" <Shelly.Kelly at uop.com>
> > Subject: Re: [Ifeffit] distinguishing between actual shells and
> > 	artifacts
> > To: "XAFS Analysis using Ifeffit"
<ifeffit at millenia.cars.aps.anl.gov>
> > Message-ID:
> >
> >
>
<5A8CCCCD35FC0946BE602D2F43C0218A7DF9FF at AZ18EV808.global.ds.honeywell.co
> m>
> >
> > Content-Type: text/plain;	charset="iso-8859-1"
> >
> > Hi Hashem,
> >
> > I show one method for doing this in my book chapter Figure 14-23 on
> page
> > 431. (I feel a bit like a broken record).  I will send you a copy if
> you
> > want.
> >
> > Shelly
> >
> > > -----Original Message-----
> > > From: ifeffit-bounces at millenia.cars.aps.anl.gov [mailto:ifeffit-
> > > bounces at millenia.cars.aps.anl.gov] On Behalf Of Voegelin Andreas
> > > Sent: Wednesday, January 14, 2009 9:57 AM
> > > To: XAFS Analysis using Ifeffit
> > > Subject: Re: [Ifeffit] distinguishing between actual shells and
> > artifacts
> > >
> > > Hi Hashem
> > >
> > > You can copy-paste the respective EXAFS data in Athena and compare
> the
> > > backtransforms over the first shell, the first+second shell, the
> second
> > > shell.
> > >
> > > By comparison of the backtransforms with each other and with the
> > measured
> > > EXAFS, you can see where the second-shell contribution has its
> origin in
> > > k-space (note that the backtransform is not corrected for the
window
> > > function).
> > >
> > > For instance, if the second-shell signal adds to the spectrum in
the
> > low-k
> > > range (where noise should not be a problem), it is likely real and
> might
> > > result, e.g., from multiple scattering among first-shell O atoms.
If
> the
> > > second-shell signal in the backtransform mainly contributes in the
> high-
> > k
> > > range (where noise or glitches may be a problem), you may be able
to
> see
> > > whether it falls together with obvious artefacts (such as
glitches),
> or
> > > whether the backtransform matches spectral features that you
> consider to
> > > be real.
> > >
> > > Andreas
> > >
> > > -----------------------------------------------
> > > Andreas Voegelin, PhD
> > > Soil Chemistry Group
> > > Inst. of Biogeochemistry and Pollutant Dynamics
> > > Dept. of Environmental Sciences
> > > ETH Zurich
> > > Universit?tstrasse 16, CHN F24
> > > CH-8092 Z?rich, Switzerland
> > > Phone: +41 44 633 61 47
> > > Fax: +41 44 633 11 18
> > > E-Mail: voegelin at env.ethz.ch
> > > www: http://www.ibp.ethz.ch/people/andreavo
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: ifeffit-bounces at millenia.cars.aps.anl.gov
> > > > [mailto:ifeffit-bounces at millenia.cars.aps.anl.gov] On Behalf
> > > > Of mstiet2 at lsu.edu
> > > > Sent: Mittwoch, 14. Januar 2009 14:12
> > > > To: ifeffit at millenia.cars.aps.anl.gov
> > > > Subject: [Ifeffit] distinguishing between actual shells and
> artifacts
> > > >
> > > > Dear all,
> > > >
> > > > I am currently fitting first and second shells with Zn-O and
> > > > Zn-Zn paths,respectively. I get second shell features that
> > > > could be fit quite well, but I am not certain if they are
> > > > actually second shell features or possibly artifacts. For
> > > > some samples I get second shell features that I know should
> > > > not be present. What criteria would you use to distinguish
> > > > between artifacts and actual shells?
> > > >
> > > > Your assistance is appreciated.
> > > >
> > > > Hashem Stietiya
> > > >
> > > > Louisiana State University
> > > >
> > > >
> > > >
> > >
> > > _______________________________________________
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> >
> >
> >
> > ------------------------------
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> > End of Ifeffit Digest, Vol 71, Issue 16
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