# 7.17.1.37.1. Fission_Precursor_Concentration

Syntax

  Source For Precursor Conservation ([{of} SpeciesName] | [{in} MaterialPhaseName] | [{ls} {a | b | c}]) {@ | at | for | on | over} MeshPartIdentifier = Fission_Precursor_Concentration (Beta = beta | N_F = n_f | P_R = p_r)

Summary

  Fission source for precursor conservation equation

Parameter | Value | Default
--- | --- | ---
{of} | {of | species | subindex} | –
SpeciesName | string | –
{in} | {in | material_phase} | –
MaterialPhaseName | string | –
{ls} | {levelset_phase | ls} | –
MeshPartIdentifier | string | –
beta | real | –
n_f | real | –
p_r | real | –