[Ifeffit] [HOWTO] converting experimental mu(E) in cm^-1

Hi, I would like your opinion on the procedure to convert the experimental mu_exp(E) in arbitrary units (counts) to mu(E) in cm^-1. This is my "student" procedure: 1. take mu_exp(E) - with EXAFS - spectrum in counts 2. take mu_th(E) - without EXAFS - spectrum in cm^-1 (from MacMaster or XOP software) 3. plot 1+2 4. while mu_exp(E) != mu_th(E) do (by hand!) 4a. mu(E) = A * mu_exp(E) + B When the two spectra coincide (more or less) I assume that the mu(E) is converted in cm^-1 units. Is this right? Does it already exist a software that makes this work automatically? Could be interesting to implement it in Athena? Thanks, M. -- Mauro Rovezzi - Physics student University of Rome "Tor Vergata", ESRF Beamline BM8 - GILDA