At ALS, we have a box of foils from EXAFS Materials that seems to get
passed around from beamline to beamline. I ran absorption scans on 17
edges from the metals in the box one day, and found that there was
considerable scatter in the expected vs observed edge positions:
In the past we've used elemental foils from exafsmaterials.com for
energy calibration of our MAD beamline. These standards are for EXAFS
and XANES. Most are thin (5 micron) metal foils.
Has anyone had experience with other sources of standards or other
forms (such as compounds rather than
