Gabriele Cosmo
160 lines
5.5 KiB
C++
160 lines
5.5 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4UserSpecialCuts.cc,v 1.14 2004/10/19 00:59:40 kurasige Exp $
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// GEANT4 tag $Name: geant4-07-00-cand-01 $
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//
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// --------------------------------------------------------------
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// History
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//
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// 15-04-98 first implementation, mma
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// 07-04-03 migrade to cut per region (V.Ivanchenko)
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// 18-09-03 substitute manager for the loss tables (V.Ivanchenko)
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// 23-01-04 add protection for charged geantino in range cut (H.Kurashige)
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// 09-09-04 tracking cut applied only if Rmin or Emin > DBL_MIN
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// --------------------------------------------------------------
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#include "G4UserSpecialCuts.hh"
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#include "G4Step.hh"
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#include "G4UserLimits.hh"
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#include "G4VParticleChange.hh"
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#include "G4LossTableManager.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4UserSpecialCuts::G4UserSpecialCuts(const G4String& aName)
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: G4VProcess(aName)
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{
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if (verboseLevel>0)
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{
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G4cout << GetProcessName() << " is created "<< G4endl;
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}
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theLossTableManager = G4LossTableManager::Instance();
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4UserSpecialCuts::~G4UserSpecialCuts()
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{
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4UserSpecialCuts::G4UserSpecialCuts(G4UserSpecialCuts& right)
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: G4VProcess(right)
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{
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4double G4UserSpecialCuts::
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PostStepGetPhysicalInteractionLength( const G4Track& aTrack,
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G4double, // previousStepSize
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G4ForceCondition* condition )
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{
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// condition is set to "Not Forced"
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*condition = NotForced;
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G4double ProposedStep = DBL_MAX;
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G4UserLimits* pUserLimits =
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aTrack.GetVolume()->GetLogicalVolume()->GetUserLimits();
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if (pUserLimits)
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{
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// max track length
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//
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ProposedStep = (pUserLimits->GetUserMaxTrackLength(aTrack)
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- aTrack.GetTrackLength());
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if (ProposedStep < 0.) return 0.;
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// max time limit
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//
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G4double beta = (aTrack.GetDynamicParticle()->GetTotalMomentum())
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/(aTrack.GetTotalEnergy());
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G4double dTime = (pUserLimits->GetUserMaxTime(aTrack)
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- aTrack.GetGlobalTime());
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G4double temp = beta*c_light*dTime;
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if (temp < 0.) return 0.;
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if (ProposedStep > temp) ProposedStep = temp;
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// min remaining range
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// (only for charged particle except for chargedGeantino)
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//
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G4ParticleDefinition* Particle = aTrack.GetDefinition();
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if ( (Particle->GetPDGCharge() != 0.)
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&& (Particle->GetParticleType() != "geantino"))
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{
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G4double Ekine = aTrack.GetKineticEnergy();
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const G4MaterialCutsCouple* couple = aTrack.GetMaterialCutsCouple();
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G4double RangeNow = theLossTableManager->GetRange(Particle,Ekine,couple);
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G4double Rmin = pUserLimits->GetUserMinRange(aTrack);
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if (Rmin > DBL_MIN) {
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temp = RangeNow - Rmin;
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if (temp < 0.) return 0.;
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if (ProposedStep > temp) ProposedStep = temp;
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}
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// min kinetic energy (only for charged particle)
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//
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G4double Emin = pUserLimits->GetUserMinEkine(aTrack);
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if (Emin > DBL_MIN) {
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Rmin = theLossTableManager->GetRange(Particle,Emin,couple);
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temp = RangeNow - Rmin;
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if (temp < 0.) return 0.;
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if (ProposedStep > temp) ProposedStep = temp;
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}
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}
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}
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return ProposedStep;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4VParticleChange*
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G4UserSpecialCuts::PostStepDoIt( const G4Track& aTrack,
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const G4Step& )
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//
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// Kill the current particle, if requested by G4UserLimits
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//
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{
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aParticleChange.Initialize(aTrack);
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aParticleChange.ProposeEnergy(0.) ;
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aParticleChange.ProposeLocalEnergyDeposit(aTrack.GetKineticEnergy()) ;
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aParticleChange.ProposeTrackStatus(fStopAndKill);
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return &aParticleChange;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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