Hi Robert, Lisa,

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

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).

--Matt