Geant4  10.02.p02
G4MinEkineCuts.cc
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29 // --------------------------------------------------------------
30 // GEANT 4 class implementation file
31 // --------------------------------------------------------------
32 // 15 April 1998 M.Maire
33 // --------------------------------------------------------------
34 
35 #include "G4MinEkineCuts.hh"
36 
37 #include "G4Step.hh"
38 #include "G4UserLimits.hh"
39 #include "G4VParticleChange.hh"
40 #include "G4EnergyLossTables.hh"
41 
43  : G4SpecialCuts(aName)
44 {
45  if (verboseLevel>1) {
46  G4cout << GetProcessName() << " is created "<< G4endl;
47  }
49 }
50 
52 {}
53 
55 {}
56 
57 
59  const G4Track& aTrack,
60  G4double ,
62  )
63 {
64  // condition is set to "Not Forced"
65  *condition = NotForced;
66 
67  G4double proposedStep = DBL_MAX;
68  // get the pointer to UserLimits
69  G4UserLimits* pUserLimits = aTrack.GetVolume()->GetLogicalVolume()->GetUserLimits();
70  const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
71  G4ParticleDefinition* aParticleDef = aTrack.GetDefinition();
72 
73  if (pUserLimits && aParticleDef->GetPDGCharge() != 0.0) {
74  //min kinetic energy
75  G4double temp = DBL_MAX;
76  G4double eKine = aParticle->GetKineticEnergy();
77  const G4MaterialCutsCouple* couple = aTrack.GetMaterialCutsCouple();
78  G4double eMin = pUserLimits->GetUserMinEkine(aTrack);
79 
80  G4double rangeNow = DBL_MAX;
81 
82  rangeNow = G4EnergyLossTables::GetRange(aParticleDef,eKine,couple);
83 
84  if (eKine < eMin ) {
85  proposedStep = 0.;
86  } else {
87  // charged particles only
88  G4double rangeMin = G4EnergyLossTables::GetRange(aParticleDef,eMin,couple);
89  temp = rangeNow - rangeMin;
90  if (proposedStep > temp) proposedStep = temp;
91  }
92  }
93  return proposedStep;
94 }
G4double condition(const G4ErrorSymMatrix &m)
G4ParticleDefinition * GetDefinition() const
G4int verboseLevel
Definition: G4VProcess.hh:368
G4MinEkineCuts(const G4String &processName="G4MinEkineCuts")
G4double GetKineticEnergy() const
const G4DynamicParticle * GetDynamicParticle() const
const G4MaterialCutsCouple * GetMaterialCutsCouple() const
virtual ~G4MinEkineCuts()
virtual G4double PostStepGetPhysicalInteractionLength(const G4Track &track, G4double previousStepSize, G4ForceCondition *condition)
G4GLOB_DLL std::ostream G4cout
const G4String & GetProcessName() const
Definition: G4VProcess.hh:408
G4UserLimits * GetUserLimits() const
G4LogicalVolume * GetLogicalVolume() const
virtual G4double GetUserMinEkine(const G4Track &)
G4VPhysicalVolume * GetVolume() const
#define G4endl
Definition: G4ios.hh:61
void SetProcessType(G4ProcessType)
Definition: G4VProcess.hh:420
double G4double
Definition: G4Types.hh:76
G4ForceCondition
G4double GetPDGCharge() const
#define DBL_MAX
Definition: templates.hh:83
static G4double GetRange(const G4ParticleDefinition *aParticle, G4double KineticEnergy, const G4Material *aMaterial)