[Ifeffit] new release of Athena

[Bruce Ravel]

Hi folks,

This morning I posted a new version of the source code package and a
new windows executable for Athena on my web site.

The changes in Athena include:
  1.  The ability to read a data file from a multi-element detector
      and have each channel be made into a separate group.  This
      allows you to examine and discard individual channels before
      making a summation.
  2.  Added a simple log-ratio/phase-difference analysis.  This can be
      accessed from the "Analysis" menu.  It is currently
      undocumented, but if you already know how log-ratio works, it
      should be fairly clear what is going on.
  3.  Fixed (I think!) a bug in which reading in data and selecting
      the raw detector data type would crash the program on Windows.
  4.  Fixed a bug that made it impossible to save chi(q) data
      correctly.

There are some outstanding problems with both the multi-element thing
and the log-ratio thing.  The most serious of these is one that
effects a multi-element file with very many columns.  It is quite
possible for most of the columns not to be displayed in the column
selection dialog.  This will be fixed next time.

I want to thank Dale Brewe and Oded Kleifeld for their useful bug
reports.  I also want to thank all of the participants and instructors
of the recent EXAFS course at NSLS for putting Athena and Artemis
through their paces.  Several issues, mostly with Artemis, surfaced at
the course and will get my serious attention this fall.

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*** For those of you wanting to use the new Windows executable of
    Athena, grab it from the downloads page of my website (URL below
    in my .sig) and drop it on top of the old one in the
    C:\Program Files\Ifeffit folder.  Please note that the installer
    has NOT been updated to include it.

*** For those of you having strange problems on Windows 98, there are
    some links on my downloads page that may help you deal with
    certain inherent limitations of that charming operating system.


Regards,
B

-- 
 Bruce Ravel  ----------------------------------- ravel at phys.washington.edu
 Code 6134, Building 3, Room 222
 Naval Research Laboratory                          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/