Import Geant4 9.6.0 source tree
This commit is contained in:
Gabriele Cosmo
+179
-148
@@ -23,21 +23,25 @@
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// $Id: G4GeneratorPrecompoundInterface.cc,v 1.11 2010-11-10 17:04:35 gunter Exp $
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// GEANT4 tag $Name: not supported by cvs2svn $
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// $Id$
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//
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// -----------------------------------------------------------------------------
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// GEANT 4 class file
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//
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// History: first implementation
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// HPW, 10DEC 98, the decay part originally written by Gunter Folger
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// HPW, 10DEC 98, the decay part originally written by Gunter Folger
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// in his FTF-test-program.
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//
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// M.Kelsey, 28 Jul 2011 -- Replace loop to decay input secondaries
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// with new utility class, simplify cleanup loops
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// -----------------------------------------------------------------------------
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#include <algorithm>
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#include <vector>
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#include "G4GeneratorPrecompoundInterface.hh"
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#include "G4PhysicalConstants.hh"
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#include "G4SystemOfUnits.hh"
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#include "G4DynamicParticleVector.hh"
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#include "G4KineticTrackVector.hh"
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#include "G4Proton.hh"
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@@ -50,175 +54,202 @@
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#include "G4PreCompoundModel.hh"
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#include "G4ExcitationHandler.hh"
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#include "G4DecayKineticTracks.hh"
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#include <algorithm>
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#include <vector>
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#include "G4HadronicInteractionRegistry.hh"
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G4GeneratorPrecompoundInterface::G4GeneratorPrecompoundInterface(G4VPreCompoundModel* p)
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: CaptureThreshold(10*MeV)
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G4GeneratorPrecompoundInterface::G4GeneratorPrecompoundInterface(G4VPreCompoundModel* preModel)
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: CaptureThreshold(10*MeV)
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{
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proton = G4Proton::Proton();
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neutron = G4Neutron::Neutron();
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if(p) { SetDeExcitation(p); }
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else { SetDeExcitation(new G4PreCompoundModel(new G4ExcitationHandler())); }
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proton = G4Proton::Proton();
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neutron = G4Neutron::Neutron();
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if(preModel) { SetDeExcitation(preModel); }
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else {
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G4HadronicInteraction* hadi =
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G4HadronicInteractionRegistry::Instance()->FindModel("PRECO");
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G4VPreCompoundModel* pre = static_cast<G4VPreCompoundModel*>(hadi);
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if(!pre) { pre = new G4PreCompoundModel(); }
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SetDeExcitation(pre);
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}
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}
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G4GeneratorPrecompoundInterface::~G4GeneratorPrecompoundInterface()
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{}
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{
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}
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// choose to calculate excitation energy from energy balance
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//---------------------------------------------------------------------
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// choose to calculate excitation energy from energy balance
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#define exactExcitationEnergy
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//#define G4GPI_debug_excitation
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G4ReactionProductVector* G4GeneratorPrecompoundInterface::
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Propagate(G4KineticTrackVector* theSecondaries, G4V3DNucleus* theNucleus)
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{
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G4ReactionProductVector * theTotalResult = new G4ReactionProductVector;
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G4ReactionProductVector * theTotalResult = new G4ReactionProductVector;
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// decay the strong resonances
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G4DecayKineticTracks decay(theSecondaries);
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// decay the strong resonances
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G4DecayKineticTracks decay(theSecondaries);
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// prepare the fragment
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G4int anA=theNucleus->GetMassNumber();
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G4int aZ=theNucleus->GetCharge();
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G4int numberOfEx = 0;
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G4int numberOfCh = 0;
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G4int numberOfHoles = 0;
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G4double exEnergy = 0.0;
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G4double R = theNucleus->GetNuclearRadius();
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G4ThreeVector exciton3Momentum(0.,0.,0.);
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// prepare the fragment
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G4int anA=theNucleus->GetMassNumber();
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G4int aZ=theNucleus->GetCharge();
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G4int numberOfEx = 0;
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G4int numberOfCh = 0;
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G4int numberOfHoles = 0;
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G4double exEnergy = 0.0;
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G4double R = theNucleus->GetNuclearRadius();
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G4ThreeVector exciton3Momentum(0.,0.,0.);
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G4ThreeVector captured3Momentum(0.,0.,0.);
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G4ThreeVector wounded3Momentum(0.,0.,0.);
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// loop over secondaries
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unsigned int amax = theSecondaries->size();
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// loop over secondaries
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#ifdef exactExcitationEnergy
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G4LorentzVector secondary4Momemtum(0,0,0,0);
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#endif
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for(unsigned int list=0; list<amax; ++list)
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{
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G4KineticTrack *aTrack = (*theSecondaries)[list];
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G4ParticleDefinition* part = aTrack->GetDefinition();
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G4double e = aTrack->Get4Momentum().e();
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G4double mass = aTrack->Get4Momentum().mag();
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G4ThreeVector mom = aTrack->Get4Momentum().vect();
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if((part != proton && part != neutron) ||
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(e > mass + CaptureThreshold) ||
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(aTrack->GetPosition().mag() > R)) {
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G4ReactionProduct * theNew = new G4ReactionProduct(part);
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theNew->SetMomentum(mom);
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theNew->SetTotalEnergy(e);
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theTotalResult->push_back(theNew);
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G4LorentzVector secondary4Momemtum(0,0,0,0);
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#endif
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G4KineticTrackVector::iterator iter;
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for(iter=theSecondaries->begin(); iter !=theSecondaries->end(); ++iter)
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{
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G4ParticleDefinition* part = (*iter)->GetDefinition();
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G4double e = (*iter)->Get4Momentum().e();
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G4double mass = (*iter)->Get4Momentum().mag();
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G4ThreeVector mom = (*iter)->Get4Momentum().vect();
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if((part != proton && part != neutron) ||
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(e > mass + CaptureThreshold) ||
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((*iter)->GetPosition().mag() > R)) {
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G4ReactionProduct * theNew = new G4ReactionProduct(part);
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theNew->SetMomentum(mom);
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theNew->SetTotalEnergy(e);
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theTotalResult->push_back(theNew);
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#ifdef exactExcitationEnergy
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secondary4Momemtum += aTrack->Get4Momentum();
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#endif
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} else {
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// within the nucleus, neutron or proton
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// now calculate A, Z of the fragment, momentum, number of exciton states
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++anA;
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++numberOfEx;
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G4int Z = G4int(part->GetPDGCharge()/eplus + 0.1);
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aZ += Z;
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numberOfCh += Z;
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exciton3Momentum += mom;
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exEnergy += (e - mass);
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}
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delete aTrack;
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}
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delete theSecondaries;
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secondary4Momemtum += (*iter)->Get4Momentum();
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#endif
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} else {
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// within the nucleus, neutron or proton
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// now calculate A, Z of the fragment, momentum, number of exciton states
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++anA;
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++numberOfEx;
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G4int Z = G4int(part->GetPDGCharge()/eplus + 0.1);
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aZ += Z;
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numberOfCh += Z;
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captured3Momentum += mom;
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exEnergy += (e - mass);
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}
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delete (*iter);
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}
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delete theSecondaries;
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// loop over wounded nucleus
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G4Nucleon * theCurrentNucleon =
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theNucleus->StartLoop() ? theNucleus->GetNextNucleon() : 0;
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while(0 != theCurrentNucleon) {
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if(theCurrentNucleon->AreYouHit()) {
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++numberOfHoles;
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++numberOfEx;
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--anA;
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aZ -= G4int(theCurrentNucleon->GetDefinition()->GetPDGCharge()/eplus + 0.1);
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exciton3Momentum -= theCurrentNucleon->Get4Momentum().vect();
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exEnergy += theCurrentNucleon->GetBindingEnergy();
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}
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theCurrentNucleon = theNucleus->GetNextNucleon();
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}
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// loop over wounded nucleus
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G4Nucleon * theCurrentNucleon =
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theNucleus->StartLoop() ? theNucleus->GetNextNucleon() : 0;
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while(theCurrentNucleon) {
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if(theCurrentNucleon->AreYouHit()) {
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++numberOfHoles;
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++numberOfEx;
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--anA;
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aZ -= G4int(theCurrentNucleon->GetDefinition()->GetPDGCharge()/eplus + 0.1);
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wounded3Momentum += theCurrentNucleon->Get4Momentum().vect();
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//G4cout << "hit nucleon " << theCurrentNucleon->Get4Momentum() << G4endl;
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exEnergy += theCurrentNucleon->GetBindingEnergy();
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}
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theCurrentNucleon = theNucleus->GetNextNucleon();
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}
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exciton3Momentum = captured3Momentum - wounded3Momentum;
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if(0!=anA && 0!=aZ) {
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G4double fMass = G4NucleiProperties::GetNuclearMass(anA, aZ);
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#ifdef exactExcitationEnergy
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// recalculate exEnergy from Energy balance....
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const G4HadProjectile * primary = GetPrimaryProjectile();
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G4double Einitial= primary->Get4Momentum().e()
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+ G4NucleiProperties::GetNuclearMass(theNucleus->GetMassNumber(),theNucleus->GetCharge());
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G4double Efinal = fMass + secondary4Momemtum.e();
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if ( (Einitial - Efinal) > 0 ) {
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// G4cout << "G4GPI::Propagate() : positive exact excitation Energy "
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// << (Einitial - Efinal)/MeV << " MeV, exciton estimate " << exEnergy/MeV << " MeV" << G4endl;
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exEnergy=Einitial - Efinal;
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}
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else {
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// G4cout << "G4GeneratorPrecompoundInterface::Propagate() : negative exact excitation Energy "
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// << (Einitial - Efinal)/MeV << " MeV, using exciton estimate " << exEnergy/MeV << " MeV" << G4endl;
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exEnergy=0.;
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}
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#endif
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fMass += exEnergy;
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#ifdef exactExcitationEnergy
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G4LorentzVector exciton4Momentum(exciton3Momentum, fMass);
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if(anA>0 && aZ>0) {
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G4double fMass = G4NucleiProperties::GetNuclearMass(anA, aZ);
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#ifdef exactExcitationEnergy
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// recalculate exEnergy from Energy balance....
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const G4HadProjectile * primary = GetPrimaryProjectile();
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G4double Einitial= primary->Get4Momentum().e()
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+ G4NucleiProperties::GetNuclearMass(theNucleus->GetMassNumber(),theNucleus->GetCharge());
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G4double Efinal = fMass + secondary4Momemtum.e();
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if ( (Einitial - Efinal) > 0 ) {
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// G4cout << "G4GPI::Propagate() : positive exact excitation Energy "
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// << (Einitial - Efinal)/MeV << " MeV, exciton estimate " << exEnergy/MeV << " MeV" << G4endl;
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exEnergy=Einitial - Efinal;
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}
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else {
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// G4cout << "G4GeneratorPrecompoundInterface::Propagate() : negative exact excitation Energy "
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// << (Einitial - Efinal)/MeV << " MeV, setting excitation to 0 MeV" << G4endl;
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exEnergy=0.;
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}
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#endif
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fMass += exEnergy;
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G4ThreeVector balance=primary->Get4Momentum().vect() - secondary4Momemtum.vect() - exciton3Momentum;
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#ifdef G4GPI_debug_excitation
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G4cout << "momentum balance init/final " << balance << " value " << balance.mag() << G4endl
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<< "primary / secondaries "<< primary->Get4Momentum() << " / "
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<< secondary4Momemtum << " captured/wounded: " << captured3Momentum << " / " << wounded3Momentum
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<< " exciton " << exciton3Momentum << G4endl
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<< secondary4Momemtum.vect() + exciton3Momentum << G4endl;
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#endif
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#ifdef exactExcitationEnergy
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G4LorentzVector exciton4Momentum(exciton3Momentum, fMass);
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#else
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G4LorentzVector exciton4Momentum(exciton3Momentum,
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std::sqrt(exciton3Momentum.mag2() + fMass*fMass));
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#endif
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if ( exEnergy > 0.0 ) { // Need to de-excite the remnant nucleus only if excitation energy > 0.
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G4Fragment anInitialState(anA, aZ, exciton4Momentum);
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anInitialState.SetNumberOfParticles(numberOfEx-numberOfHoles);
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anInitialState.SetNumberOfCharged(numberOfCh);
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anInitialState.SetNumberOfHoles(numberOfHoles);
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G4LorentzVector exciton4Momentum(exciton3Momentum,
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std::sqrt(exciton3Momentum.mag2() + fMass*fMass));
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#endif
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if ( exEnergy > 0.0 ) { // Need to de-excite the remnant nucleus only if excitation energy > 0.
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G4Fragment anInitialState(anA, aZ, exciton4Momentum);
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anInitialState.SetNumberOfParticles(numberOfEx-numberOfHoles);
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anInitialState.SetNumberOfCharged(numberOfCh);
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anInitialState.SetNumberOfHoles(numberOfHoles);
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G4ReactionProductVector * aPreResult = theDeExcitation->DeExcite(anInitialState);
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G4ReactionProductVector * aPrecoResult = theDeExcitation->DeExcite(anInitialState);
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// fill pre-compound part into the result, and return
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theTotalResult->insert(theTotalResult->end(),aPrecoResult->begin(),aPrecoResult->end() );
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delete aPrecoResult;
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// fill pre-compound part into the result, and return
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unsigned int amax = aPreResult->size();
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for(unsigned int ll=0; ll<amax; ++ll) {
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theTotalResult->push_back(aPreResult->operator[](ll));
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}
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delete aPreResult;
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} else { // No excitation energy, we only need to create the remnant nucleus
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G4ParticleDefinition* theKindOfFragment = 0;
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if (anA == 1 && aZ == 0) {
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theKindOfFragment = G4Neutron::NeutronDefinition();
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} else if (anA == 1 && aZ == 1) {
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theKindOfFragment = G4Proton::ProtonDefinition();
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} else if (anA == 2 && aZ == 1) {
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theKindOfFragment = G4Deuteron::DeuteronDefinition();
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} else if (anA == 3 && aZ == 1) {
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theKindOfFragment = G4Triton::TritonDefinition();
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} else if (anA == 3 && aZ == 2) {
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theKindOfFragment = G4He3::He3Definition();
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} else if (anA == 4 && aZ == 2) {
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theKindOfFragment = G4Alpha::AlphaDefinition();;
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} else {
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theKindOfFragment =
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G4ParticleTable::GetParticleTable()->GetIonTable()->GetIon(aZ,anA,0.0);
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}
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if (theKindOfFragment != 0) {
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G4ReactionProduct * theNew = new G4ReactionProduct(theKindOfFragment);
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theNew->SetMomentum(exciton3Momentum);
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theNew->SetTotalEnergy(fMass);
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//theNew->SetFormationTime(??0.??);
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theTotalResult->push_back(theNew);
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}
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}
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}
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} else { // No/negative excitation energy, we only need to create the remnant nucleus
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// energy is not conserved, ignore exciton momentum, i.e. remnant nucleus will be at rest
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G4ParticleDefinition* theKindOfFragment = 0;
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if (anA == 1 && aZ == 0) {
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theKindOfFragment = G4Neutron::NeutronDefinition();
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} else if (anA == 1 && aZ == 1) {
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theKindOfFragment = G4Proton::ProtonDefinition();
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} else if (anA == 2 && aZ == 1) {
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theKindOfFragment = G4Deuteron::DeuteronDefinition();
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} else if (anA == 3 && aZ == 1) {
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theKindOfFragment = G4Triton::TritonDefinition();
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} else if (anA == 3 && aZ == 2) {
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theKindOfFragment = G4He3::He3Definition();
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} else if (anA == 4 && aZ == 2) {
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theKindOfFragment = G4Alpha::AlphaDefinition();;
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} else {
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theKindOfFragment =
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G4ParticleTable::GetParticleTable()->GetIonTable()->GetIon(aZ,anA,0.0);
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}
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if (theKindOfFragment != 0) {
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G4ReactionProduct * theNew = new G4ReactionProduct(theKindOfFragment);
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theNew->SetMomentum(G4ThreeVector(0.,0.,0.));
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theNew->SetTotalEnergy(fMass);
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//theNew->SetFormationTime(??0.??);
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theTotalResult->push_back(theNew);
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}
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}
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}
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return theTotalResult;
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return theTotalResult;
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}
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G4HadFinalState* G4GeneratorPrecompoundInterface::
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ApplyYourself(const G4HadProjectile &, G4Nucleus & )
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{
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G4cout << "G4GeneratorPrecompoundInterface: ApplyYourself interface called stand-allone."
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<< G4endl;
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G4cout << "This class is only a mediator between generator and precompound"<<G4endl;
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G4cout << "Please remove from your physics list."<<G4endl;
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throw G4HadronicException(__FILE__, __LINE__, "SEVERE: G4GeneratorPrecompoundInterface model interface called stand-allone.");
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return new G4HadFinalState;
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G4cout << "G4GeneratorPrecompoundInterface: ApplyYourself interface called stand-allone."
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<< G4endl;
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G4cout << "This class is only a mediator between generator and precompound"<<G4endl;
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G4cout << "Please remove from your physics list."<<G4endl;
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throw G4HadronicException(__FILE__, __LINE__, "SEVERE: G4GeneratorPrecompoundInterface model interface called stand-allone.");
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return new G4HadFinalState;
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}
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void G4GeneratorPrecompoundInterface::PropagateModelDescription(std::ostream& outFile) const
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{
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outFile << "G4GeneratorPrecompoundInterface interfaces a high\n"
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<< "energy model through the wounded nucleus to precompound de-excition.\n"
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<< "Low energy protons and neutron present among secondaries produced by \n"
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<< "the high energy generator and within the nucleus are captured. The wounded\n"
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<< "nucleus and the captured particles form an excited nuclear fragment. This\n"
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<< "fragment is passed to the Geant4 pre-compound model for de-excitation.\n"
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<< "Nuclear de-excitation:\n";
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// preco
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}
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