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Get rid of wgt_absorb in ParticleData

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This commit is contained in:
Paul Romano 2022-01-16 15:13:36 -06:00
parent f741568d06
commit f18caa1712
4 changed files with 37 additions and 33 deletions
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10
src/physics.cpp
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@ -134,8 +134,6 @@ void sample_neutron_reaction(Particle& p)
if (p.neutron_xs(i_nuclide).absorption > 0.0) {
absorption(p, i_nuclide);
} else {
p.wgt_absorb() = 0.0;
}
if (!p.alive())
return;
@ -626,15 +624,15 @@ void absorption(Particle& p, int i_nuclide)
{
if (settings::survival_biasing) {
// Determine weight absorbed in survival biasing
p.wgt_absorb() = p.wgt() * p.neutron_xs(i_nuclide).absorption /
p.neutron_xs(i_nuclide).total;
double wgt_absorb = p.wgt() * p.neutron_xs(i_nuclide).absorption /
p.neutron_xs(i_nuclide).total;
// Adjust weight of particle by probability of absorption
p.wgt() -= p.wgt_absorb();
p.wgt() -= wgt_absorb;
// Score implicit absorption estimate of keff
if (settings::run_mode == RunMode::EIGENVALUE) {
p.keff_tally_absorption() += p.wgt_absorb() *
p.keff_tally_absorption() += wgt_absorb *
p.neutron_xs(i_nuclide).nu_fission /
p.neutron_xs(i_nuclide).absorption;
}