Dear all, Could you give me some advice on estimating the intrinsic loss factor (S02)? I am trying to estimate the S02 value in the curve-fitting analysis for Zr K-edge EXAFS. To do this, I did the curve-fitting analysis on the first shell of Fourier transform of Zr-K EXAFS of Zr-foil by Artemis. However, there was a marked difference between the amps obtained by the fitting, depending on the "Fit k-weights" as follows. kw amp 1 0.8145660 +/- 0.0486470 2 0.9230700 +/- 0.0673820 3 1.0439100 +/- 0.0854950 1,2,3 0.9081570 +/- 0.0722180 Is this a usual thing? I can't find the reasonable explanation why S02 depends on "Fit k-weights". I attached the Artemis project file. Thank you in advance for your cooperation. Hiroshi Oji ========================================================= Hiroshi Oji, Dr. Industrial Application Division Japan Synchrotron Radiation Research Institute (JASRI) 1-1-1 Kouto, Sayo-cho Sayo-gun, Hyogo 679-5198 JAPAN E-mail oji-h@spring8.co.jp =========================================================