[Ifeffit] NiO data

Kelly, Shelly D. SKelly at anl.gov
Mon Nov 14 09:30:29 CST 2005

Hi Scott,

Here is some NiO data.
There are several columns in the data files.  They represent energy, I0, It, If, Iref.
They were collected from MRCAT at the APS.  Here are some beamline parameters.
ID tapered 4 mm to decrease the change in x-ray energy over the scanned range. 
1st harmonic of ID line used.
double crystal Si(111) mono.
Ph mirror to remove harmonics
0.7x0.7 mm slits to define x-ray cross-section
20/80 N2/H3 in Io, 100% N2 for It.
quick scanning mode
Ni filter of 6 absorption lengths was used in reference pin diode detector infront of I0.
Reference signal is taken by log(Io/Iref).  Cross and Frenkel have the reference for this.

As far as I can tell, we haven't published this reference before. The log book mentions that the NiO particle size is less than 10 microns.  I don't think that we ran XRD on it.  The sample came from Aldrich (99% purity).


-----Original Message-----
From: ifeffit-bounces at millenia.cars.aps.anl.gov on behalf of Scott Calvin
Sent: Sun 11/13/2005 5:50 PM
To: XAFS Analysis using Ifeffit
Cc: SCalvin at slc.edu
Subject: [Ifeffit] NiO data
Hi all,

Anyone out there have spectra for a NiO standard? I bet one of you 
does, since there was a request for a NiO atoms.inp file a few months 
ago. I have a referee who wants to see that our data that matches Ni 
metal very well doesn't also match NiO well (I'm presuming this 
referee is not someone too familiar with EXAFS!). So anyway, also let 
me know how you'd like me to credit the data (e.g. a footnote listing 
you and the beamline it was collected on).


--Scott Calvin
Sarah Lawrence College

P.S. And no, Matt's database doesn't have NiO, and yes, the Lytle 
database does...but the Lytle data is not thoroughly documented and 
so I avoid it when possible.

Ifeffit mailing list
Ifeffit at millenia.cars.aps.anl.gov

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