Hello, I have some questions concerning the FMS and SCF Card in XANES-Calculations. I have always used the same value for lfms1 (SCF-Card) and lfms2 (FMS-Card). Does it make sense to use different values in the same feff.inp (for example lfms1 = 0 and lfms2 = 1)? I don't think so. There is the lfms2 parameter in the FMS-Card and the description in the FEFF manual for lfms2 = 0 (appropriate for solids): "With the default value of 0, the FMS is calculated for a cluster of size rfms around each representative unique potential." My question is, what does it mean "each representative unique potential"? Every potential, which is defined in the POTENTIAL Card? I.e. with 4 potentials in the POTENTIAL Card, the FMS is done for each of these 4 potentials? Or does it mean, the FMS is done for really every potential of every atom? Thanks for your help and time. sincerely yours, Eckhard --------------------------------- Eckhard Bosman e.bosman@stud.uni-goettingen.de +49 (0)551-39-14441 Raum: E0.104 Institut für Röntgenphysik Friedrich-Hund-Platz 1 37077 Göttingen Germany