Contact persons:
P. Talou (talou@lanl.gov)
R. Capote (r.capotenoy@iaea.org ; roberto.capote@yahoo.com)

The PFNS code comes as a compressed archive 'PFNS-LosAlamos-Model.tgz'.

Under Linux/Unix/MacOSX systems, just type
tar xvf PFNS-LosAlamos-Model.tgz

It will unpack the archive and creates the following directories:

- source/
- source/data/
- tests/
- tests/1/
- tests/2/
- tests/3/
- tests/4/

and this 'setup.readme' text file.

To install the code, first go to 'source/' and type (assuming ifort is your FORTRAN compiler):
> ifort RIPL-masses.f90 PFNS-LosAlamos-Model.f90 get-pfns.f90 -o get-pfns.x
Please note that the order of the sources is important !

To run the test cases, type (for test #1):

> ln -sf ../tests/1/input.pfns input.pfns
> ./get-pfns.x

The results are saved in two main output files: 'output.pfns' and 'data.pfns'.
The first one contains a summary of the results, while the latter contains
calculated center-of-mass and laboratory frames spectra, for easy manipulation or plotting.
In the case of multi-chance fission, an additional output file called 'multiple.pfns' is created,
and contains the contribution from the $n^{th}$-chance fissions to the total spectrum. Of course,
many other results can be obtained by simply editing the driver code. More explanations are given
below on all the output data that can be extracted.

Another file 'pfns.plt' is created and can be used by GNUPLOT to plot and save the results in
a postscript file 'pfns.ps', by typing:
> gnuplot pfns.plt