Skip to content

formula for environmental neutrons (aprox) #141

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 2 commits into from
Jun 29, 2025
Merged

formula for environmental neutrons (aprox) #141

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
50a33b4
formula for environmental neutrons (aprox)
lobis Jun 29, 2025
c70aff2
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Jun 29, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
3 changes: 2 additions & 1 deletion inc/TRestGeant4PrimaryGeneratorInfo.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -52,7 +52,8 @@ enum class EnergyDistributionFormulas {
COSMIC_NEUTRONS,
COSMIC_GAMMAS,
FISSION_NEUTRONS_U238,
ENVIRONMENTAL_GAMMAS
ENVIRONMENTAL_GAMMAS,
ENVIRONMENTAL_NEUTRONS,
};

std::string EnergyDistributionFormulasToString(const EnergyDistributionFormulas&);
Expand Down
15 changes: 15 additions & 0 deletions src/TRestGeant4PrimaryGeneratorInfo.cxx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -178,6 +178,8 @@ string TRestGeant4PrimaryGeneratorTypes::EnergyDistributionFormulasToString(
return "FissionNeutronsU238";
case EnergyDistributionFormulas::ENVIRONMENTAL_GAMMAS:
return "EnvironmentalGammas";
case EnergyDistributionFormulas::ENVIRONMENTAL_NEUTRONS:
return "EnvironmentalNeutrons";
}
cout << "TRestGeant4PrimaryGeneratorTypes::EnergyDistributionFormulasToString - Error - Unknown energy "
"distribution formula"
Expand All @@ -202,6 +204,10 @@ EnergyDistributionFormulas TRestGeant4PrimaryGeneratorTypes::StringToEnergyDistr
EnergyDistributionFormulasToString(EnergyDistributionFormulas::ENVIRONMENTAL_GAMMAS),
TString::ECaseCompare::kIgnoreCase)) {
return EnergyDistributionFormulas::ENVIRONMENTAL_GAMMAS;
} else if (TString(type).EqualTo(
EnergyDistributionFormulasToString(EnergyDistributionFormulas::ENVIRONMENTAL_NEUTRONS),
TString::ECaseCompare::kIgnoreCase)) {
return EnergyDistributionFormulas::ENVIRONMENTAL_NEUTRONS;
} else {
cout << "TRestGeant4PrimaryGeneratorTypes::StringToEnergyDistributionFormulas - Error - Unknown "
"energyDistributionFormulas: "
Expand Down Expand Up @@ -250,6 +256,15 @@ TF1 TRestGeant4PrimaryGeneratorTypes::EnergyDistributionFormulasToRootFormula(
distribution.GetXaxis()->SetTitle("Energy (keV)");
return distribution;
}
case EnergyDistributionFormulas::ENVIRONMENTAL_NEUTRONS: {
// Environmental neutron radiation approximation
const char* title = "Environmental Neutrons";
auto distribution = TF1(title, "TMath::Exp(-x * 0.0005)", 0, 10000); // keV
distribution.SetNormalized(true);
distribution.SetTitle(title);
distribution.GetXaxis()->SetTitle("Energy (keV)");
return distribution;
}
}
cout << "TRestGeant4PrimaryGeneratorTypes::EnergyDistributionFormulasToRootFormula - Error - Unknown "
"energy distribution formula"
Expand Down
Loading