On Wednesday 27 January 2010 09:14:48 am 康明亮 wrote:

Dear Bruce, I want to sonsult a question about using Linear Combination fitting. I normalized all the standards (measured in transmission mode) and samples (fuorescence mode) with Athena, and then wish to use LCF to quantify each unique component in the samples. But I noted that the normalized samples spectra are lower than any references, thus the fit results are also high than the original spectra. I do not know why? Wish to obtain guidance from you. Thanks!

Mingliang, I don't understand your question and I doubt that anyone else reading this does either. As I say at http://cars9.uchicago.edu/ifeffit/BruceRavel/FormLetters/HelpRequest "If you do not provide enough information to reproduce the problem on my own computer, there will be little I can do to help you. ... You should send along a project file, a data file, a screenshot -- something that helps to explain your problem." Please read that web page carefully.

In addition, I wish to use Artemis to do some fitting for XAFS data(processed by Athena firstly). It is my first time to perform such work, is there an helpful manual avaible online for freshman? Thanks!

This question is also answered at that web page. B -- Bruce Ravel ------------------------------------ bravel@bnl.gov National Institute of Standards and Technology Synchrotron Methods Group at NSLS --- Beamlines U7A, X24A, X23A2 Building 535A Upton NY, 11973 My homepage: http://xafs.org/BruceRavel EXAFS software: http://cars9.uchicago.edu/~ravel/software/exafs/