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G4NeutronKiller.cc
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25 //
26 //
27 //---------------------------------------------------------------------------
28 //
29 // ClassName: G4NeutronKiller
30 //
31 // Description: The process to kill particles to save CPU
32 //
33 // Author: V.Ivanchenko 26/09/00 for HARP software
34 //
35 //----------------------------------------------------------------------------
36 //
37 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
38 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
39 
40 #include "G4NeutronKiller.hh"
41 
42 #include "G4SystemOfUnits.hh"
43 #include "G4NeutronKillerMessenger.hh"
44 #include "G4TransportationProcessType.hh"
45 
46 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
47 
48 G4NeutronKiller::G4NeutronKiller(const G4String& processName, G4ProcessType aType)
49  : G4VDiscreteProcess(processName, aType)
50 {
51  // set Process Sub Type
52  SetProcessSubType(NEUTRON_KILLER);
53 
54  kinEnergyThreshold = 0.0;
55  timeThreshold = DBL_MAX;
56  pMess = new G4NeutronKillerMessenger(this);
57 }
58 
59 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
60 
61 G4NeutronKiller::~G4NeutronKiller()
62 {
63  delete pMess;
64 }
65 
66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
67 
68 G4bool G4NeutronKiller::IsApplicable(const G4ParticleDefinition& particle)
69 {
70  return (particle.GetParticleName() == "neutron");
71 }
72 
73 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
74 
75 void G4NeutronKiller::SetTimeLimit(G4double val)
76 {
77  timeThreshold = val;
78  if(verboseLevel > 0)
79  G4cout << "### G4NeutronKiller: timeLimit(ns) = "
80  << timeThreshold/ns << G4endl;
81 }
82 
83 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
84 
85 void G4NeutronKiller::SetKinEnergyLimit(G4double val)
86 {
87  kinEnergyThreshold = val;
88  if(verboseLevel > 0)
89  G4cout << "### G4NeutronKiller: Tracking cut E(MeV) = "
90  << kinEnergyThreshold/MeV << G4endl;
91 }
92 
93 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
94 
95 G4double G4NeutronKiller::PostStepGetPhysicalInteractionLength(
96  const G4Track& aTrack,
97  G4double, G4ForceCondition* condition)
98 {
99  // condition is set to "Not Forced"
100  *condition = NotForced;
101 
102  return (aTrack.GetGlobalTime() > timeThreshold ||
103  aTrack.GetKineticEnergy() < kinEnergyThreshold) ? 0.0 : DBL_MAX;
104 }
105 
106 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
107 
108 G4double G4NeutronKiller::GetMeanFreePath(const G4Track&,G4double,
109  G4ForceCondition*)
110 {
111  return DBL_MAX;
112 }
113 
114 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
115 
116 G4VParticleChange* G4NeutronKiller::PostStepDoIt(const G4Track& aTrack,
117  const G4Step&)
118 {
119  pParticleChange->Initialize(aTrack);
120  pParticleChange->ProposeTrackStatus(fStopAndKill);
121  return pParticleChange;
122 }
123 
124 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......