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G4AdjointSteppingAction.cc
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26 // $Id: G4AdjointSteppingAction.cc 67009 2013-01-29 16:00:21Z gcosmo $
27 //
29 // Class Name: G4AdjointSteppingAction
30 // Author: L. Desorgher
31 // Organisation: SpaceIT GmbH
32 // Contract: ESA contract 21435/08/NL/AT
33 // Customer: ESA/ESTEC
35 
37 #include "G4Track.hh"
38 #include "G4PhysicalVolumeStore.hh"
39 #include "G4AffineTransform.hh"
42 //
44  : ext_sourceEMax(0.), start_event(false),
45  did_adj_part_reach_ext_source(false), last_ekin(0.), last_weight(0.),
46  prim_weight(0.), last_part_def(0), theUserAdjointSteppingAction(0)
47 {
48  theG4AdjointCrossSurfChecker = G4AdjointCrossSurfChecker::GetInstance();
49 }
51 //
53 {;}
54 
56 //
58 {
59  //Apply first the user adjoint stepping action
60  //---------------------------
61  if (theUserAdjointSteppingAction) theUserAdjointSteppingAction->UserSteppingAction(aStep);
62 
63  G4Track* aTrack =aStep->GetTrack();
64  G4double nb_nuc=1.;
65  G4ParticleDefinition* thePartDef = aTrack->GetDefinition();
66 
67  if (thePartDef->GetParticleType() == "adjoint_nucleus"){
68  nb_nuc=double(thePartDef->GetBaryonNumber());
69  }
70  //Kill conditions for adjoint particles reaching the maximum energy
71  //-----------------------------------------------------------------
72  if(aTrack->GetKineticEnergy() >= ext_sourceEMax*nb_nuc){
74  did_adj_part_reach_ext_source=false;
75  return;
76  }
77 
78  G4double weight_factor = aTrack->GetWeight()/prim_weight;
79 
80  if ( (weight_factor>0 && weight_factor<=0) || weight_factor<= 1e-290 || weight_factor>1.e200)
81  {
82  //std::cout<<"Weight_factor problem! Value = "<<weight_factor<<std::endl;
84  did_adj_part_reach_ext_source=false;
85  return;
86  }
87 
88 
89  //Kill conditions for surface crossing
90  //--------------------------------------
91 
92  G4String surface_name;
93  G4double cos_to_surface;
94  G4bool GoingIn;
95  G4ThreeVector crossing_pos;
96  if (theG4AdjointCrossSurfChecker->CrossingOneOfTheRegisteredSurface(aStep, surface_name, crossing_pos, cos_to_surface, GoingIn) ){
97 
98  //G4cout<<"Test_step11"<<std::endl;
99  //G4cout<<surface_name<<std::endl;
100  if (surface_name == "ExternalSource") {
101  //Registering still needed
102  did_adj_part_reach_ext_source=true;
103  aTrack->SetTrackStatus(fStopAndKill);
104  //now register the adjoint particles reaching the external surface
105  last_momentum =aTrack->GetMomentum();
106  last_ekin=aTrack->GetKineticEnergy();
107  last_weight = aTrack->GetWeight();
108  last_part_def = aTrack->GetDefinition();
109  last_pos = crossing_pos;
110  return;
111  }
112  else if (surface_name == "AdjointSource" && GoingIn) {
113  did_adj_part_reach_ext_source=false;
114  aTrack->SetTrackStatus(fStopAndKill);
115  return;
116  }
117  }
118  //Check for reaching out of world
119  if (aStep->GetPostStepPoint()->GetStepStatus() == fWorldBoundary) {
120  did_adj_part_reach_ext_source=true;
121  last_momentum =aTrack->GetMomentum();
122  last_ekin=aTrack->GetKineticEnergy();
123  last_weight = aTrack->GetWeight();
124  last_part_def = aTrack->GetDefinition();
125  last_pos = crossing_pos;
126  return;
127 
128  }
129 
130 }
131