| 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 | // $Id: StepMax.cc,v 1.2 2006/06/29 16:39:16 gunter Exp $
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| 27 | // GEANT4 tag $Name: $
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| 28 | //
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| 29 | ///////////////////////////////////////////////////////////////////////////
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| 30 |
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| 31 | #include "StepMax.hh"
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| 32 | // #include "StepMaxMessenger.hh"
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| 33 | // #include "Histo.hh"
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| 34 | #include "G4VPhysicalVolume.hh"
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| 35 |
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| 36 | ///////////////////////////////////////////////////////////////////////////
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| 37 |
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| 38 | StepMax::StepMax(const G4String& processName)
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| 39 | : G4VDiscreteProcess(processName),
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| 40 | MaxChargedStep(DBL_MAX),
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| 41 | thDensity(0.1*gram/cm3),
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| 42 | first(true)
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| 43 | {
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| 44 | // pMess = new StepMaxMessenger(this);
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| 45 | // histo = Histo::GetPointer();
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| 46 | }
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| 47 |
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| 48 | //////////////////////////////////////////////////////////////////////////////
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| 49 |
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| 50 | StepMax::~StepMax()
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| 51 | {
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| 52 | // delete pMess;
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| 53 | }
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| 54 |
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| 55 | ////////////////////////////////////////////////////////////////////////////
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| 56 |
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| 57 | G4bool StepMax::IsApplicable(const G4ParticleDefinition& particle)
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| 58 | {
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| 59 | return ( particle.GetPDGCharge() != 0. );
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| 60 | }
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| 61 |
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| 62 | /////////////////////////////////////////////////////////////////////////////
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| 63 |
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| 64 | void StepMax::SetMaxStep(G4double step) {MaxChargedStep = step;}
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| 65 |
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| 66 | /////////////////////////////////////////////////////////////////////////////
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| 67 |
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| 68 | G4double StepMax::PostStepGetPhysicalInteractionLength(
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| 69 | const G4Track& aTrack,
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| 70 | G4double,
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| 71 | G4ForceCondition* condition )
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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 | ProposedStep = DBL_MAX;
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| 76 |
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| 77 | if(first)
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| 78 | {
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| 79 | // checkVolume = histo->CheckVolume();
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| 80 | // gasVolume = histo->GasVolume();
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| 81 | first = false;
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| 82 | }
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| 83 |
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| 84 | G4VPhysicalVolume* pv = aTrack.GetVolume();
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| 85 |
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| 86 | if( pv == gasVolume || pv == checkVolume ) ProposedStep = 0.0;
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| 87 |
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| 88 | else if( (aTrack.GetMaterial())->GetDensity() > thDensity &&
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| 89 | aTrack.GetPosition().z() < 0.0 ) ProposedStep = MaxChargedStep;
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| 90 |
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| 91 | return ProposedStep;
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| 92 | }
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| 93 |
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| 94 | ////////////////////////////////////////////////////////////////////////////////////
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| 95 |
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| 96 | G4VParticleChange* StepMax::PostStepDoIt(const G4Track& aTrack, const G4Step&)
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| 97 | {
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| 98 | aParticleChange.Initialize(aTrack);
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| 99 |
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| 100 | if ( ProposedStep == 0.0 )
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| 101 | {
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| 102 | aParticleChange.ProposeTrackStatus(fStopAndKill);
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| 103 | /*
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| 104 | if(1 < (Histo::GetPointer())->GetVerbose())
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| 105 | {
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| 106 | G4cout << "StepMax: " << aTrack.GetDefinition()->GetParticleName()
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| 107 | << " with energy = " << aTrack.GetKineticEnergy()/MeV
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| 108 | << " MeV is killed in Check volume at " << aTrack.GetPosition()
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| 109 | << G4endl;
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| 110 | }
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| 111 | */
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| 112 | }
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| 113 | return &aParticleChange;
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| 114 | }
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| 115 |
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| 116 | ////////////////////////////////////////////////////////////////////////////////////////
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