| 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | //
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| 27 | // --------------------------------------------------------------
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| 28 | // GEANT 4 - Underground Dark Matter Detector Advanced Example
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| 29 | //
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| 30 | // For information related to this code contact: Alex Howard
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| 31 | // e-mail: alexander.howard@cern.ch
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| 32 | // --------------------------------------------------------------
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| 33 | // Comments
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| 34 | //
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| 35 | // Underground Advanced
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| 36 | // by A. Howard and H. Araujo
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| 37 | // (27th November 2001)
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| 38 | //
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| 39 | // MaxTimeCuts program
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| 40 | // --------------------------------------------------------------
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| 41 |
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| 42 | #include "DMXMaxTimeCuts.hh"
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| 43 |
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| 44 | #include "G4Step.hh"
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| 45 | #include "G4UserLimits.hh"
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| 46 | #include "G4VParticleChange.hh"
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| 47 | #include "G4EnergyLossTables.hh"
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| 48 |
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| 49 |
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| 50 | DMXMaxTimeCuts::DMXMaxTimeCuts(const G4String& aName)
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| 51 | : DMXSpecialCuts(aName)
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| 52 | {
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| 53 | if (verboseLevel>1) {
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| 54 | G4cout << GetProcessName() << " is created "<< G4endl;
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| 55 | }
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| 56 | SetProcessType(fUserDefined);
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| 57 | }
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| 58 |
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| 59 | DMXMaxTimeCuts::~DMXMaxTimeCuts()
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| 60 | {}
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| 61 |
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| 62 | DMXMaxTimeCuts::DMXMaxTimeCuts(DMXMaxTimeCuts&)
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| 63 | : DMXSpecialCuts()
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| 64 | {}
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| 65 |
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| 66 |
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| 67 | G4double DMXMaxTimeCuts::PostStepGetPhysicalInteractionLength(
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| 68 | const G4Track& aTrack,
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| 69 | G4double ,
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| 70 | G4ForceCondition* condition
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| 71 | )
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| 72 | {
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| 73 | // condition is set to "Not Forced"
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| 74 | *condition = NotForced;
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| 75 |
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| 76 | G4double proposedStep = DBL_MAX;
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| 77 | // get the pointer to UserLimits
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| 78 | G4UserLimits* pUserLimits = aTrack.GetVolume()->GetLogicalVolume()->GetUserLimits();
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| 79 | const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
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| 80 |
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| 81 | // can apply cuts for specific particles - use if(particleDef):
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| 82 | // G4ParticleDefinition* aParticleDef = aTrack.GetDefinition();
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| 83 |
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| 84 | // G4cout << " Time: " << pUserLimits->GetUserMaxTime(aTrack) << G4endl;
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| 85 |
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| 86 | if (pUserLimits) {
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| 87 | G4double temp = DBL_MAX;
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| 88 | //max time limit
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| 89 | G4double dTime= (pUserLimits->GetUserMaxTime(aTrack) - aTrack.GetGlobalTime());
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| 90 | if (dTime < 0. ) {
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| 91 | proposedStep = 0.;
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| 92 | } else {
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| 93 | G4double beta = (aParticle->GetTotalMomentum())/(aParticle->GetTotalEnergy());
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| 94 | temp = beta*c_light*dTime;
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| 95 | if (proposedStep > temp) proposedStep = temp;
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| 96 | }
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| 97 |
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| 98 | }
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| 99 | return proposedStep;
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| 100 | }
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