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G4LowECapture.cc
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25 //
26 //
27 //---------------------------------------------------------------------------
28 //
29 // ClassName: G4LowECapture
30 //
31 // Author: V.Ivanchenko 31 August 2010
32 //
33 //----------------------------------------------------------------------------
34 //
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37 
38 #include "G4LowECapture.hh"
39 #include "G4SystemOfUnits.hh"
40 #include "G4ParticleDefinition.hh"
41 #include "G4Step.hh"
42 #include "G4Track.hh"
43 #include "G4Region.hh"
44 #include "G4RegionStore.hh"
45 
46 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
47 
49  : G4VDiscreteProcess("Capture", fElectromagnetic),
50  kinEnergyThreshold(ekinlim), isIon(false),
51  nRegions(0)
52 {}
53 
54 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
55 
57 {}
58 
59 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
60 
62 {
63  kinEnergyThreshold = val;
64  if(verboseLevel > 0) {
65  G4cout << "### G4LowECapture: Tracking cut E(MeV) = "
67  }
68 }
69 
70 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
71 
73 {
74  G4String r = nam;
75  if(r == "" || r == "world" || r == "World") r = "DefaultRegionForTheWorld";
76  for(G4int i=0; i<nRegions; ++i) {
77  if(regionName[i] == r) { return; }
78  }
79  regionName.push_back(r);
80  ++nRegions;
81  if(verboseLevel > 1) {
82  G4cout << "### G4LowECapture: new G4Region <" << r << ">" << G4endl;
83  }
84 }
85 
86 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
87 
89 {
91  for(G4int i=0; i<nRegions; ++i) {
92  const G4Region* r = store->GetRegion(regionName[i]);
93  if(r && verboseLevel > 0) {
94  G4cout << "### G4LowECapture: new G4Region <"
95  << regionName[i] << "> with tracking cut "
96  << kinEnergyThreshold/keV << " keV" << G4endl;
97  }
98  if(r) { region.push_back(r); }
99  }
100  nRegions = region.size();
101 
102  // ions reusing G4GenericIon parameters
103  if(part.GetParticleType() == "nucleus") {
104  G4String pname = part.GetParticleName();
105  if(pname != "deuteron" && pname != "triton" &&
106  pname != "alpha" && pname != "He3" &&
107  pname != "alpha+" && pname != "helium" &&
108  pname != "hydrogen") { isIon = true; }
109  }
110 }
111 
112 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
113 
115 {
116  return true;
117 }
118 
120  const G4Track& aTrack, G4double, G4ForceCondition* condition)
121 {
122  *condition = NotForced;
123  G4double limit = DBL_MAX;
124  G4double eLimit = kinEnergyThreshold;
125  if(isIon) {
126  eLimit *= aTrack.GetDefinition()->GetPDGMass()/CLHEP::proton_mass_c2;
127  }
128  if(aTrack.GetKineticEnergy() < eLimit) {
129  for(G4int i=0; i<nRegions; ++i) {
130  if(aTrack.GetVolume()->GetLogicalVolume()->GetRegion() == region[i]) {
131  limit = 0.0;
132  break;
133  }
134  }
135  }
136  return limit;
137 }
138 
139 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
140 
142  const G4Step&)
143 {
144  pParticleChange->Initialize(aTrack);
147  return pParticleChange;
148 }
149 
150 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
151 
154 {
155  return DBL_MAX;
156 }
157 
158 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
159 
160