Bruce, here is another little kick... In order to try to compute a "standard" for background calculation, as suggested, and before running Artemis to try to do that (with the grim results of having the program exiting) I had tried to run feff6 directly on the feff.inp file that I sent out yesterday in order to use the chi.dat file suppositely produced by feff itself. Unfortunately I do not find any chi.dat file produced. I used the following options for the PRINT flag: 1 0 0 0 (the deafult) 1 0 0 1 (the most sentitive choice, for me) 1 1 0 0 (the desperate choice) 1 0 1 0 (same as above...) all not working... Is there a hidden (for me) way to have feff6 produce the chi.dat file? Ciao, Stefano -- ____________________________________________ Stefano Ciurli Professor of Chemistry Department of Agro-Environmental Science and Technology University of Bologna Viale Giuseppe Fanin, 40 I-40127 Bologna Italy Phone: +39-051-209-6204 Fax: +39-051-209-6203 "Fatti non foste a viver come bruti, ma per seguir virtute e canoscenza" Dante Alighieri - Inferno - Canto XXVI