G4EmDNAPhysics.cc

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// S. Incerti ([email protected])
//
 
#include "G4EmDNAPhysics.hh"
#include "G4EmDNABuilder.hh"
#include "G4SystemOfUnits.hh"
 
// ions
#include "G4Alpha.hh"
#include "G4DNAGenericIonsManager.hh"
 
// utilities
#include "G4EmParameters.hh"
#include "G4PhysicsListHelper.hh"
#include "G4BuilderType.hh"
#include "G4EmBuilder.hh"
#include "G4PhysListUtil.hh"
 
// factory
#include "G4PhysicsConstructorFactory.hh"
//
G4_DECLARE_PHYSCONSTR_FACTORY(G4EmDNAPhysics);
 
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G4EmDNAPhysics::G4EmDNAPhysics(G4int ver, const G4String& name)
  : G4VPhysicsConstructor(name)
{
  // instantiate singletones for physics
  G4PhysListUtil::InitialiseParameters();
 
  // parameters for DNA and for option3 EM physics
  SetVerboseLevel(ver);
  G4EmParameters* param = G4EmParameters::Instance();
  param->SetDefaults();
  param->SetMinEnergy(10*CLHEP::eV);
  param->SetMaxEnergy(300*CLHEP::MeV);
  param->SetLowestElectronEnergy(0*CLHEP::eV);
  param->SetNumberOfBinsPerDecade(20);
  param->ActivateAngularGeneratorForIonisation(true);
  param->SetStepFunction(0.2, 10*CLHEP::um);
  param->SetStepFunctionMuHad(0.1, 50*CLHEP::um);
  param->SetStepFunctionLightIons(0.1, 20*CLHEP::um);
  param->SetStepFunctionIons(0.1, 1*CLHEP::um);
  param->SetUseICRU90Data(true);
  param->SetUseMottCorrection(true);
  param->SetMscStepLimitType(fUseSafetyPlus);
  param->SetMscSkin(3);
  param->SetMscRangeFactor(0.08);
  param->SetFluo(true);  
  param->SetAuger(true);  
  param->SetDeexcitationIgnoreCut(true);
  param->ActivateDNA();
  param->SetDNAFast(false);
  param->SetDNAStationary(false);
 
  SetPhysicsType(bElectromagnetic);
}
 
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void G4EmDNAPhysics::ConstructParticle()
{
  G4EmDNABuilder::ConstructDNAParticles();
}
 
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void G4EmDNAPhysics::ConstructProcess()
{
  // parameters
  G4EmParameters* param = G4EmParameters::Instance();
  const G4double emaxDNA = 1.*CLHEP::MeV;
  const G4double emaxIonDNA = 300.*CLHEP::MeV;
  const G4double eminBorn = 500.*CLHEP::keV;
  const G4bool fast = param->DNAFast();
  const G4bool st = param->DNAStationary();
  if(verboseLevel > 1) {
    G4cout << "### " << GetPhysicsName() 
       << " Construct Processes EmaxDNA(MeV)= " 
           << emaxDNA/CLHEP::MeV << "; useMSC: " << fast 
           << "; stationary: " << st << G4endl;
  }
  G4DNAGenericIonsManager* genericIonsManager
    = G4DNAGenericIonsManager::Instance();
 
  // standard physics
  G4EmDNABuilder::ConstructStandardEmPhysics(emaxDNA, emaxIonDNA, 
                                             emaxIonDNA, emaxIonDNA,
                                             dnaGS, fast);
 
  // DNA physics
  G4EmDNABuilder::ConstructDNAElectronPhysics(emaxDNA, 0, fast, st);
  G4EmDNABuilder::ConstructDNAProtonPhysics(eminBorn, emaxIonDNA, 0, fast, st);
  G4EmDNABuilder::ConstructDNAIonPhysics(emaxIonDNA, st);
 
  G4ParticleDefinition* part = genericIonsManager->GetIon("hydrogen");
  G4EmDNABuilder::ConstructDNALightIonPhysics(part, 0, 0, emaxIonDNA, fast, st);
 
  part = G4Alpha::Alpha();
  G4EmDNABuilder::ConstructDNALightIonPhysics(part, 2, 0, emaxIonDNA, fast, st);
 
  part = genericIonsManager->GetIon("alpha+");
  G4EmDNABuilder::ConstructDNALightIonPhysics(part, 1, 0, emaxIonDNA, fast, st);
 
  part = genericIonsManager->GetIon("helium");
  G4EmDNABuilder::ConstructDNALightIonPhysics(part, 0, 0, emaxIonDNA, fast, st);
}
 
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