Geant4  10.03
G4VAdjointReverseReaction.cc
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26 // $Id: G4VAdjointReverseReaction.cc 87443 2014-12-04 12:26:31Z gunter $
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29 #include "G4SystemOfUnits.hh"
30 #include "G4AdjointCSManager.hh"
31 #include "G4AdjointCSMatrix.hh"
32 #include "G4AdjointInterpolator.hh"
33 #include "G4AdjointCSMatrix.hh"
34 #include "G4VEmAdjointModel.hh"
35 #include "G4ElementTable.hh"
36 #include "G4Element.hh"
37 #include "G4Material.hh"
38 #include "G4MaterialCutsCouple.hh"
39 #include "G4AdjointCSManager.hh"
40 #include "G4ParticleChange.hh"
41 #include "G4AdjointElectron.hh"
42 
43 
45  G4VAdjointReverseReaction(G4String process_name, G4bool whichScatCase):
46  G4VDiscreteProcess(process_name)
48  IsScatProjToProjCase=whichScatCase;
50  IsFwdCSUsed=false;
51  IsIntegralModeUsed=false;
52  lastCS=0.;
53  trackid = nstep = 0;
54 }
56 //
59 { if (fParticleChange) delete fParticleChange;
60 }
62 //
64 {;
65 }
67 //
69 {
70 
71  theAdjointCSManager->BuildCrossSectionMatrices(); //do not worry it will be done just once
73 
74 }
76 //
78 {
79 
81 
82  /* if (IsFwdCSUsed && IsIntegralModeUsed){ //INtegral mode still unstable
83  G4double Tkin = step.GetPostStepPoint()->GetKineticEnergy();
84  G4double fwdCS = theAdjointCSManager->GetTotalForwardCS(track.GetDefinition(), Tkin, track.GetMaterialCutsCouple());
85  //G4cout<<"lastCS "<<lastCS<<G4endl;
86  if (fwdCS<lastCS*G4UniformRand()) { // the reaction does not take place, same integral method as the one used for forward ionisation in G4
87  ClearNumberOfInteractionLengthLeft();
88  return fParticleChange;
89  }
90 
91  }
92  */
93 
97 
99  return fParticleChange;
100 
101 
102 
103 }
105 //
107  G4double ,
109 { *condition = NotForced;
110  G4double preStepKinEnergy = track.GetKineticEnergy();
111 
112  if(track.GetTrackID() != trackid) {
113  trackid = track.GetTrackID();
114  nstep = 0;
115  }
116  ++nstep;
117 
118 
119 
120  /*G4double Sigma =
121  theAdjointEMModel->AdjointCrossSection(track.GetMaterialCutsCouple(),preStepKinEnergy,IsScatProjToProjCase);*/
122 
123  G4double Sigma =
125 
126  //G4double sig = Sigma;
127 
128  G4double fwd_TotCS;
129  G4double corr = theAdjointCSManager->GetCrossSectionCorrection(track.GetDefinition(),preStepKinEnergy,track.GetMaterialCutsCouple(),IsFwdCSUsed, fwd_TotCS);
130 
131  if(std::fabs(corr) > 100.) { Sigma = 0.0; }
132  else { Sigma *= corr; }
133 
134  //G4cout<<fwd_TotCS<<G4endl;
135  /*if (IsFwdCSUsed && IsIntegralModeUsed){ //take the maximum cross section only for charged particle
136  G4double e_sigma_max, sigma_max;
137  theAdjointCSManager->GetMaxFwdTotalCS(track.GetDefinition(),
138  track.GetMaterialCutsCouple(), e_sigma_max, sigma_max);
139  if (e_sigma_max > preStepKinEnergy){
140  Sigma*=sigma_max/fwd_TotCS;
141  }
142  }
143  */
144 
145  G4double mean_free_path = 1.e60 *mm;
146  if (Sigma>0) mean_free_path = 1./Sigma;
147  lastCS=Sigma;
148  /*
149  if(nstep > 100) {
150 
151  G4cout << "#* " << track.GetDefinition()->GetParticleName()
152  << " " << GetProcessName()
153  << " Nstep " << nstep
154  << " E(MeV)= " << preStepKinEnergy << " Sig0= " << sig
155  << " sig1= " << Sigma << " mfp= " << mean_free_path << G4endl;
156 
157  }
158  if (nstep > 20000) {
159  exit(1);
160  }
161  */
162  /*G4cout<<"Sigma "<<Sigma<<G4endl;
163  G4cout<<"mean_free_path [mm] "<<mean_free_path/mm<<G4endl;
164  */
165 
166 
167  return mean_free_path;
168 }
G4double condition(const G4ErrorSymMatrix &m)
G4ParticleDefinition * GetDefinition() const
G4double GetCrossSectionCorrection(G4ParticleDefinition *aPartDef, G4double PreStepEkin, const G4MaterialCutsCouple *aCouple, G4bool &fwd_is_used, G4double &fwd_TotCS)
static constexpr double mm
Definition: G4SIunits.hh:115
void BuildPhysicsTable(const G4ParticleDefinition &)
virtual G4double GetAdjointCrossSection(const G4MaterialCutsCouple *aCouple, G4double primEnergy, G4bool IsScatProjToProjCase)
const G4MaterialCutsCouple * GetMaterialCutsCouple() const
G4VAdjointReverseReaction(G4String process_name, G4bool whichScatCase)
void ClearNumberOfInteractionLengthLeft()
Definition: G4VProcess.hh:447
virtual void SampleSecondaries(const G4Track &aTrack, G4bool IsScatProjToProjCase, G4ParticleChange *fParticleChange)=0
G4double GetKineticEnergy() const
void PreparePhysicsTable(const G4ParticleDefinition &)
bool G4bool
Definition: G4Types.hh:79
G4AdjointCSManager * theAdjointCSManager
Definition: G4Step.hh:76
G4int GetTrackID() const
virtual G4VParticleChange * PostStepDoIt(const G4Track &, const G4Step &)
virtual void Initialize(const G4Track &)
double G4double
Definition: G4Types.hh:76
G4ForceCondition
virtual G4double GetMeanFreePath(const G4Track &track, G4double previousStepSize, G4ForceCondition *condition)
static G4AdjointCSManager * GetAdjointCSManager()