[Ifeffit] Ca EXAFS with Ge220 or InSb111 (Lisa Bovenkamp)

Matt Newville newville at cars.uchicago.edu
Mon May 11 20:29:59 CDT 2015

Hi Robert, Lisa,

On Mon, May 11, 2015 at 3:51 PM, Robert Gordon <ragordon at alumni.sfu.ca>

> Another possibility is that the L-edges of In and Sb are giving
> considerable energy-dependence to
> the beam in the EXAFS region...any non-linearity between detectors will
> make extraction of the EXAFS
> problematic. Looking at CAMD's XAS beamline mono specs
> http://www.camd.lsu.edu/beamline_info/DCM_beamline_2008.pdf
> Si111, Si220 and Ge220 will all cover the Ca K-edge range.

I completely agree.   The In L edges (3730, 3938, 4238 eV) and Sb L edges
(4132, 4380, 4698 eV) would make InSb pretty close to impossible to use as
a mono for Ca K edge (4038 eV).

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