[Ifeffit] Fe K edge spectrum of scorodite

Matthew Marcus mamarcus at lbl.gov
Mon Jul 6 11:50:49 CDT 2015


Do you by any chance has a room-temp spectrum?  Most of our data is taken at RT or not much below, and so the LN2 spectrum won't be a perfect match.
	mam

On 7/6/2015 9:12 AM, Case Van Genuchten wrote:
> Dear Matthew,
>
> Sure, the raw data and/or spectrum can be added to the database.  For this sample, the 1st derivative of the Fe foil was 7.112 keV.  I can also provide individual scans for the database, if needed.  Is there any interest in the As K-edge of this sample, too?  I have that one as well.
> Case
>
> On Mon, Jul 6, 2015 at 5:48 PM, Matthew Marcus <mamarcus at lbl.gov <mailto:mamarcus at lbl.gov>> wrote:
>
>     Thanks!  May I add it to the ALS 10.3.2 reference collection?
>
>     What is the standard of energy calibration?  Is the Fe metal edge at 7110.75eV, 7112eV or what?
>              mam
>
>     On 7/6/2015 7:11 AM, Case Van Genuchten wrote:
>
>         Dear Shaofeng,
>
>         I am attaching the averaged, raw data and Fe K-edge EXAFS spectrum (extracted using SixPack) of scorodite.  The mineral was prepared following the procedure outlined in Paktunc et al. (2008).  The data were collected at the Stanford Synchrotron Radiation Lightsource in transmission mode with the sample housed in a liquid nitrogen cryostat.  You can find additional details on the preparation of the sample and data collection from the publication where the spectrum is reported and modeled (van Genuchten et al. 2014, Geochimica et Cosmochimica Acta).
>
>         Please let me know if you have any other questions about data collection.
>
>         Best,
>
>         Case M. van Genuchten
>         Environmental Geochemistry Laboratory
>         Institute of Earth Surface Dynamics
>         University of Lausanne, Lausanne, CH
>
>
>
>         On Mon, Jul 6, 2015 at 4:02 AM, Shaofeng Wang <wangshaofeng at iae.ac.cn <mailto:wangshaofeng at iae.ac.cn> <mailto:wangshaofeng at iae.ac.cn <mailto:wangshaofeng at iae.ac.cn>>> wrote:
>
>              Dear all,
>              Can anyone have Fe K edge exafs spectrum of scorodite share a copy?
>              Thanks in advance.
>              Shaofeng
>              --------------------------------------
>              Shaofeng Wang, Ph.D of Geochemistry
>              Environmental Molecular Science Group
>              Institute of Applied Ecology, Chinese Academy of Sciences
>              Shenyang, 110016, China
>         wangshaofeng at iae.ac.cn <mailto:wangshaofeng at iae.ac.cn> <mailto:wangshaofeng at iae.ac.cn <mailto:wangshaofeng at iae.ac.cn>>
>         www.iae.cas.cn <http://www.iae.cas.cn> <http://www.iae.cas.cn>
>
>
>
>              _______________________________________________
>              Ifeffit mailing list
>         Ifeffit at millenia.cars.aps.anl.gov <mailto:Ifeffit at millenia.cars.aps.anl.gov> <mailto:Ifeffit at millenia.cars.aps.anl.gov <mailto:Ifeffit at millenia.cars.aps.anl.gov>>
>         http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit
>
>
>
>
>         _______________________________________________
>         Ifeffit mailing list
>         Ifeffit at millenia.cars.aps.anl.gov <mailto:Ifeffit at millenia.cars.aps.anl.gov>
>         http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit
>
>     _______________________________________________
>     Ifeffit mailing list
>     Ifeffit at millenia.cars.aps.anl.gov <mailto:Ifeffit at millenia.cars.aps.anl.gov>
>     http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit
>
>
>
>
> _______________________________________________
> Ifeffit mailing list
> Ifeffit at millenia.cars.aps.anl.gov
> http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit
>



More information about the Ifeffit mailing list