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This commit is contained in:
Gabriele Cosmo
2017-02-28 16:16:20 +01:00
parent a3452e42ac
commit 4597adb7c4
267 changed files with 14761 additions and 24650 deletions
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source/processes/electromagnetic/adjoint/src/G4AdjointForcedInteractionForGamma.cc
+9 -3
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@@ -172,7 +172,7 @@ G4VParticleChange* G4AdjointForcedInteractionForGamma::AlongStepDoIt(const G4Tra
if (is_free_flight_gamma) { //for free_flight survival probability stays 1
//Accumulate the number of interaction lengths during free flight of gamma
total_acc_nb_fwd_interaction_length+=nb_fwd_interaction_length_over_step;
total_acc_nb_fwd_interaction_length+=nb_fwd_interaction_length_over_step;
total_acc_nb_adj_interaction_length+=nb_adj_interaction_length_over_step;
acc_track_length+=stepLength;
}
@@ -182,8 +182,14 @@ G4VParticleChange* G4AdjointForcedInteractionForGamma::AlongStepDoIt(const G4Tra
acc_nb_adj_interaction_length+=nb_adj_interaction_length_over_step;
theNumberOfInteractionLengthLeft-=nb_adj_interaction_length_over_step;
mc_induced_survival_probability= std::exp(-acc_nb_adj_interaction_length)-std::exp(-total_acc_nb_adj_interaction_length);
mc_induced_survival_probability=mc_induced_survival_probability/(std::exp(-previous_acc_nb_adj_interaction_length)-std::exp(-total_acc_nb_adj_interaction_length));
//Following condition to remove very rare FPE issue
if (total_acc_nb_adj_interaction_length <= 1.e-50 && theNumberOfInteractionLengthLeft<=1.e-50) { //condition added to avoid FPE issue
mc_induced_survival_probability = 1.e50;
}
else {
mc_induced_survival_probability= std::exp(-acc_nb_adj_interaction_length)-std::exp(-total_acc_nb_adj_interaction_length);
mc_induced_survival_probability=mc_induced_survival_probability/(std::exp(-previous_acc_nb_adj_interaction_length)-std::exp(-total_acc_nb_adj_interaction_length));
}
}
G4double weight_correction = fwd_survival_probability/mc_induced_survival_probability;
//weight_correction = 1.;