Hi folks, I guess I have been a busy boy this week. There's another release of athena on my web site. New stuff includes: 1. A couple bug fixes and several changes to the layout of the main window. 2. An automated alignment algorithm which works by varying an e0 shift to minimize the difference spectra of the derivative of two mu(E) spectra. I would not place great trust in this algorithm, but it think it will often provide a good first guess for the e0 shift. It works well for the EuTiO3 data that is included in the examples. You can use this algorithm from the alignment dialog or from the data preprocessing options in the file selection dialog. 3. Athena now checks to see if input data is monotonically increasing in energy (or wavenumber for chi(k) data). If it is not, Athena spits up an error message and refuses to read the data. This choice seems safe, but I am open to suggestions for other ways to treat the non-monotonic data. 4. A y-axis offset plotting parameter. This is most useful for stacked plots like in this screenshot: http://leonardo.phys.washington.edu/~ravel/software/exafs/images/athena/athe... This was done by setting the y-axis offset for the first data group to 0.5 and to -0.5 for the third data group. Enjoy, B -- Bruce Ravel ----------------------------------- ravel@phys.washington.edu U.S. Naval Research Laboratory, Code 6134 phone: (1) 202 767 5947 Washington DC 20375, USA fax: (1) 202 767 1697 NRL Synchrotron Radiation Consortium (NRL-SRC) Beamlines X11a, X11b, X23b, X24c, U4b National Synchrotron Light Source Brookhaven National Laboratory, Upton, NY 11973 My homepage: http://feff.phys.washington.edu/~ravel EXAFS software: http://feff.phys.washington.edu/~ravel/software/exafs/
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Bruce Ravel