[Ifeffit] noisy spectrum and AUTOBK

Bruce Ravel ravel at phys.washington.edu
Tue Apr 20 11:29:18 CDT 2004

On Tuesday 20 April 2004 12:01 pm, gabriel rosenblum wrote:
> I am trying to do background removal with AUTOBK.
> The parameter emax is present at autobk.inp file under
> the UWEXAFS package.

AUTOBK is not (substantively) different from ifeffit in that ifeffit
implements the same algorithm.  Therefore anything Shelly said in
reference to Athena is relevant to a question about AUTOBK.

"emax" in AUTOBK is the upper end of the spline range in Athena.

Similarly, everything Shelly said about moving between Athena and
Artemis has its equivalent in the old autobk and feffit.  In
particular, the business about corefining the background spline can be
done in the old feffit by setting the "bkg" keyword to "true".


 Bruce Ravel  ----------------------------------- ravel at phys.washington.edu
 Code 6134, Building 3, Room 405
 Naval Research Laboratory                          phone: (1) 202 767 2268
 Washington DC 20375, USA                             fax: (1) 202 767 4642

 NRL Synchrotron Radiation Consortium (NRL-SRC)
 Beamlines X11a, X11b, X23b
 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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