TestEm8/src/StepMax.cc

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0025 //
0026 //
0027 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0028 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0029
0030 #include "StepMax.hh"
0031
0032 #include "DetectorConstruction.hh"
0033
0034 #include "G4TransportationProcessType.hh"
0035 #include "G4VPhysicalVolume.hh"
0036
0037 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0038
0039 StepMax::StepMax(DetectorConstruction* ptr, const G4String& processName)
0040   : G4VEmProcess(processName, fGeneral), fDetector(ptr)
0041 {
0042   SetProcessSubType(static_cast<G4int>(STEP_LIMITER));
0043 }
0044
0045 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0046
0047 G4bool StepMax::IsApplicable(const G4ParticleDefinition& part)
0048 {
0049   return (part.GetPDGCharge() != 0. && !part.IsShortLived());
0050 }
0051
0052 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0053
0054 void StepMax::PreparePhysicsTable(const G4ParticleDefinition&)
0055 {
0056   fIsInitialised = false;
0057 }
0058
0059 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0060
0061 void StepMax::BuildPhysicsTable(const G4ParticleDefinition&)
0062 {
0063   if (!fIsInitialised) {
0064     fMaxChargedStep = fDetector->GetMaxChargedStep();
0065     fWorld = fDetector->GetWorldPhysVol();
0066     fIsInitialised = true;
0067     if (fMaxChargedStep < DBL_MAX) {
0068       G4cout << GetProcessName() << ":  SubType= " << GetProcessSubType()
0069              << "  Step limit(mm)= " << fMaxChargedStep << G4endl;
0070     }
0071   }
0072 }
0073
0074 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0075
0076 void StepMax::InitialiseProcess(const G4ParticleDefinition*) {}
0077
0078 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0079
0080 G4double StepMax::PostStepGetPhysicalInteractionLength(const G4Track& aTrack, G4double,
0081                                                        G4ForceCondition* condition)
0082 {
0083   // condition is set to "Not Forced"
0084   *condition = NotForced;
0085   return (aTrack.GetVolume() != fWorld) ? fMaxChargedStep : DBL_MAX;
0086 }
0087
0088 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0089
0090 G4VParticleChange* StepMax::PostStepDoIt(const G4Track& aTrack, const G4Step&)
0091 {
0092   // do nothing
0093   aParticleChange.Initialize(aTrack);
0094   return &aParticleChange;
0095 }
0096
0097 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......