NUCLIB

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
REFERENCE
AUTHOR
REPORTING BUGS
COPYRIGHT
SEE ALSO

NAME

gngf - Returns Gn/Gf of a nucleus

SYNOPSIS

#include <nuclib.h>

double gngf(int ilev, int ibar, int ishl, int Z, int A, int J, double U);

Link with -lnuclib.

DESCRIPTION

The gngf() function returns the value of Gn/Gf for a given J and U. The level density parameter at the saddle point is assumed to be 1.02 times the level density parameter of the ground state. The rotational energies of the ground state and saddle point are calculated with the finite range droplet model of Sierk.

ilev

Level density paramenter switch:

ilev = 0 a=A/8.5 (Fermi-gas)
ilev = 1 a=A/10 (highly excited nuclei)
ilev = 2 Temperature dependent level density (Lestone)
ilev = 3 Excitation energy dependent level density (Ignatyuk)

ibar

Fission barrier switch:

ibar = 0 Sierk FRDM barrier
ibar = 1 Thomas-Fermi barrier

ishl

Shell correction switch:

ishl = 0 No shell correction
ishl = 1 Shell correction (forces ilev=3, ibar=1)

Z A

Atomic and mass number of nucleus

J

Total spin of nucleus

U

Excitation energy in MeV

RETURN VALUE

The function gngf() returns the dimesionless value described.

REFERENCE

Vandenbosch and Huizenga, "Nuclear Fission". Academic Press 1973.

AUTHOR

This manual page was written by Ricardo Yanez.

REPORTING BUGS

Report bugs to <ricardo.yanez@calel.org>.

COPYRIGHT

Copyright © 2012-2017 Ricardo Yanez.

This is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version.

SEE ALSO

nuclib(3)