[ccp4bb] Foils for energy calibration

[Richard Gillilan]

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 pure elements)?

I notice that a number of companies offer XRF standard kits.

Richard Gillilan
MacCHESS