[807] | 1 | // |
---|
| 2 | // ******************************************************************** |
---|
| 3 | // * License and Disclaimer * |
---|
| 4 | // * * |
---|
| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
| 7 | // * conditions of the Geant4 Software License, included in the file * |
---|
| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
| 9 | // * include a list of copyright holders. * |
---|
| 10 | // * * |
---|
| 11 | // * Neither the authors of this software system, nor their employing * |
---|
| 12 | // * institutes,nor the agencies providing financial support for this * |
---|
| 13 | // * work make any representation or warranty, express or implied, * |
---|
| 14 | // * regarding this software system or assume any liability for its * |
---|
| 15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
| 16 | // * for the full disclaimer and the limitation of liability. * |
---|
| 17 | // * * |
---|
| 18 | // * This code implementation is the result of the scientific and * |
---|
| 19 | // * technical work of the GEANT4 collaboration. * |
---|
| 20 | // * By using, copying, modifying or distributing the software (or * |
---|
| 21 | // * any work based on the software) you agree to acknowledge its * |
---|
| 22 | // * use in resulting scientific publications, and indicate your * |
---|
| 23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
| 24 | // ******************************************************************** |
---|
| 25 | // |
---|
| 26 | // |
---|
| 27 | // $Id: DMXMinEkineCuts.cc,v 1.6 2006/06/29 16:26:39 gunter Exp $ |
---|
| 28 | // GEANT4 tag $Name: $ |
---|
| 29 | // |
---|
| 30 | // |
---|
| 31 | // -------------------------------------------------------------- |
---|
| 32 | // GEANT 4 class implementation file |
---|
| 33 | // |
---|
| 34 | // History: first implementation, based on object model of |
---|
| 35 | // 2nd December 1995, G.Cosmo |
---|
| 36 | // -------------------------------------------------------------- |
---|
| 37 | // 15 April 1998 M.Maire |
---|
| 38 | // -------------------------------------------------------------- |
---|
| 39 | |
---|
| 40 | #include "DMXMinEkineCuts.hh" |
---|
| 41 | |
---|
| 42 | #include "G4Step.hh" |
---|
| 43 | #include "G4UserLimits.hh" |
---|
| 44 | #include "G4VParticleChange.hh" |
---|
| 45 | #include "G4EnergyLossTables.hh" |
---|
| 46 | |
---|
| 47 | DMXMinEkineCuts::DMXMinEkineCuts(const G4String& aName) |
---|
| 48 | : DMXSpecialCuts(aName) |
---|
| 49 | { |
---|
| 50 | if (verboseLevel>1) { |
---|
| 51 | G4cout << GetProcessName() << " is created "<< G4endl; |
---|
| 52 | } |
---|
| 53 | SetProcessType(fUserDefined); |
---|
| 54 | } |
---|
| 55 | |
---|
| 56 | DMXMinEkineCuts::~DMXMinEkineCuts() |
---|
| 57 | {} |
---|
| 58 | |
---|
| 59 | DMXMinEkineCuts::DMXMinEkineCuts(DMXMinEkineCuts&) |
---|
| 60 | : DMXSpecialCuts() |
---|
| 61 | {} |
---|
| 62 | |
---|
| 63 | |
---|
| 64 | G4double DMXMinEkineCuts::PostStepGetPhysicalInteractionLength( |
---|
| 65 | const G4Track& aTrack, |
---|
| 66 | G4double , |
---|
| 67 | G4ForceCondition* condition |
---|
| 68 | ) |
---|
| 69 | { |
---|
| 70 | // condition is set to "Not Forced" |
---|
| 71 | *condition = NotForced; |
---|
| 72 | |
---|
| 73 | G4double proposedStep = DBL_MAX; |
---|
| 74 | // get the pointer to UserLimits |
---|
| 75 | G4UserLimits* pUserLimits = aTrack.GetVolume()->GetLogicalVolume()->GetUserLimits(); |
---|
| 76 | const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle(); |
---|
| 77 | G4ParticleDefinition* aParticleDef = aTrack.GetDefinition(); |
---|
| 78 | |
---|
| 79 | if (pUserLimits && aParticleDef->GetPDGCharge() != 0.0) { |
---|
| 80 | //min kinetic energy |
---|
| 81 | G4double temp = DBL_MAX; |
---|
| 82 | G4double eKine = aParticle->GetKineticEnergy(); |
---|
| 83 | const G4MaterialCutsCouple* couple = aTrack.GetMaterialCutsCouple(); |
---|
| 84 | G4double eMin = pUserLimits->GetUserMinEkine(aTrack); |
---|
| 85 | |
---|
| 86 | G4double rangeNow = DBL_MAX; |
---|
| 87 | |
---|
| 88 | rangeNow = G4EnergyLossTables::GetRange(aParticleDef,eKine,couple); |
---|
| 89 | |
---|
| 90 | if (eKine < eMin ) { |
---|
| 91 | proposedStep = 0.; |
---|
| 92 | } else { |
---|
| 93 | // charged particles only |
---|
| 94 | G4double rangeMin = G4EnergyLossTables::GetRange(aParticleDef,eMin,couple); |
---|
| 95 | temp = rangeNow - rangeMin; |
---|
| 96 | if (proposedStep > temp) proposedStep = temp; |
---|
| 97 | } |
---|
| 98 | } |
---|
| 99 | return proposedStep; |
---|
| 100 | } |
---|