What is Genx?
GenX is a versatile program using the differential evolution algorithm for
fitting, primarily, X-ray and neutron reflectivity data, lately also surface x-ray
diffraction data. The differential evolution
algorithm is a robust optimization method which avoids local minima but at same
is a highly effective. GenX is written in python
and uses the wxpython package
for the Graphical User Interface (GUI)
. A model to fit
is defined either through a GUI plug-in or via a python script.
The possibility to script everything makes it easy to develop completely new fitting model.
Clearly, GenX is extremely modular, making it possible to extend the program with
models and plug-ins for most fitting problems. At the present GenX is shipped
with models for x-ray and neutron specular reflectivity, off-specular x-ray reflectivity
and surface x-ray diffraction. A detailed description, of a older version, has been published in
J. Appl. Cryst. 40, 1174 (2007).
The program can be downloaded by clicking on the link on the left hand side.
Feedback and Help
Naturally a program does not become better if I do not get feedback from you! If you found a bug or want to have something included in the program drop me an e-mail at mattsb at sourceforge.net.
Another alternative, if you have a sourceforge user account is to go directly to Trac and submit a ticket.
News 
- Wiki released, 2009-06-14 19:45
-
The homepage has been updated and the in-progress trac wiki
has been announced. (0 comments) - GenX2.0b6 out!, 2009-05-27 13:18
- A new and improved version is available for download. Improvements in the reflectivity plugin, a new model for surface x-ray diffraction and better selection of parameters to fit. (0 comments)
- New x-ray reflectivity tutorial, 2009-03-26 21:43
- A new x-ray reflectivity tutorial has been uploaded to the homepage. It deals with loading data, constructing a model, fitting it and analysing the results. (0 comments)
- Changed news, 2009-03-05 21:04
- The news section on the homepage has changed to the RSS feed provided by sourceforge. Therefore all the old news has been lost. (0 comments)
- Homepage, 2008-08-09 12:36
- A first beta version of the homepage has been posted (0 comments)
Last updated: Tuesday October 06, 2009