GEF 2014/2.1

General description of fission observables. Released March 25, 2014.
(New global parameter set,
 new systematics of fission barriers.)
May 23, 2014: Subroutine version corrected (problems in two normalization loops).

License



Stand-alone version (Monte-Carlo method)

The stand-alone version of the GEF code is written in FreeBASIC (a). The FreeBASIC compiler produces binary code from the same source on Windows (b) and on Linux. The executable uses the C library.  For  the Windows version, a GUI is provided, written in JustBasic (c). The Windows version runs also on Linux with Wine (d).

Quick start on Windows:

Quick start on Linux:


Sample output plot:

Mass distribution of 239Pu(nth,f)

Calculated prompt-neutron spectra (red) compared with experimental data (black):

Prompt-neutron spectra

Windows version


Input mask of the graphical user interface:

Graphical User Interface


For Windows and Linux

Complete package


Documentation

Readme file (Technical information, list of relevant publications)
EFNUDAT report (First comprehensive documentation)
Report JEFDOC 1423 (Updated documentation)

Source (for Windows and Linux)

Source files

Data

Input files for extended input options
Distribution of entrance energies (example)
List of input parameters (example)
See Readme file for more detailed information.
Output
Data tables in XML format (examples: 233U(nth,f), 235U(nth,f), 239Pu(nth,f)
List-mode file (example)
Raw data for the multi-variant distribution of fission-fragment yields from calculations with perturbed parameters (example)
See Readme file for more detailed information.


You may consider using the Windows version of GEF on Linux with Wine in order to profit from the more comfortable input handling offered by the graphical user interface. This option may also solve problems of missing libraries under Linux.




Subroutine (Folding method)

The subroutine aims for being used in combination with other nuclear-reaction codes. For a given fissioning nucleus with excitation energy E* and angular momentum I it calculates a number of fission observables with the GEF model.

Documentation

Technical description of the subroutine

FreeBASIC version

Source

FORTRAN version

Source




(a) FreeBASIC is a free compiler (http://www.freebasic.net/).
(b) Windows is either a registered trademark or a trademark of Microsoft Corporation in the United States and/or other countries.
(c) JustBasic is a free interpreter (http://www.justbasic.com/).
(d) Wine is a windows compatibility layer for Linux (http://www.winehq.org/).