Hey everybody, while I try to figure what effect normalization has on Linear combination fitting in my lead L3 edge XANES system, I came accross this problem: Athena does not normalize correctly: Normalization in Athena (post-edge): using 1.order normalization, no flattening (which in this case is irrelevant anyway), points +199 eV and +200 eV above E0. Normalization in Origin (post-edge): using point 13235 eV (+200 eV above E0); dividing the spectrum column by that value. See the two examples in the attachment. In both examples the normalized spectrum imported from Athena does not have the norm value of 1 at 13235 eV. Why is that? The offset is also not the same for every spectrum. That undoes the normalization routine. Greetings, Lisa