[819] | 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 | // $Id: G4VRestProcess.hh,v 1.6 2006/06/29 21:07:58 gunter Exp $ |
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| 28 | // GEANT4 tag $Name: $ |
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| 29 | // |
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| 30 | // |
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| 31 | // ------------------------------------------------------------ |
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| 32 | // GEANT 4 class header file |
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| 33 | // |
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| 34 | // History: first implementation, based on object model of |
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| 35 | // 2nd December 1995, G.Cosmo |
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| 36 | // |
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| 37 | // Class Description |
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| 38 | // Abstract class which defines the public behavior of |
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| 39 | // physics interactions at rest. |
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| 40 | // |
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| 41 | // ------------------------------------------------------------ |
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| 42 | // New Physics scheme 18 Dec. 1996 H.Kurahige |
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| 43 | // ------------------------------------------------------------ |
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| 44 | // modified 25 Feb. 1997 H.Kurahige |
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| 45 | // modified 8 Mar. 1997 H.Kurahige |
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| 46 | // modified 26 Mar. 1997 H.Kurahige |
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| 47 | // modified 16 Apr. 1997 L.Urban |
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| 48 | // modified 17 Dec. 1997 L.Urban |
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| 49 | // modified for new ParticleChange 12 Mar. 1998 H.Kurashige |
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| 50 | |
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| 51 | |
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| 52 | #ifndef G4VRestProcess_h |
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| 53 | #define G4VRestProcess_h 1 |
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| 54 | |
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| 55 | #include "globals.hh" |
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| 56 | #include "G4ios.hh" |
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| 57 | |
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| 58 | #include "G4VProcess.hh" |
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| 59 | |
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| 60 | |
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| 61 | class G4VRestProcess : public G4VProcess |
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| 62 | { |
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| 63 | // Abstract class which defines the public behavior of |
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| 64 | // physics interactions at rest. |
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| 65 | |
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| 66 | public: |
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| 67 | G4VRestProcess(const G4String& , |
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| 68 | G4ProcessType aType = fNotDefined ); |
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| 69 | G4VRestProcess(G4VRestProcess& ); |
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| 70 | |
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| 71 | virtual ~G4VRestProcess(); |
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| 72 | |
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| 73 | public: // with description |
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| 74 | virtual G4double AtRestGetPhysicalInteractionLength( |
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| 75 | const G4Track& track, |
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| 76 | G4ForceCondition* condition |
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| 77 | ); |
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| 78 | |
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| 79 | virtual G4VParticleChange* AtRestDoIt( |
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| 80 | const G4Track& , |
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| 81 | const G4Step& |
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| 82 | ); |
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| 83 | |
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| 84 | // no operation in PostStepDoIt and AlongStepDoIt |
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| 85 | virtual G4double AlongStepGetPhysicalInteractionLength( |
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| 86 | const G4Track&, |
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| 87 | G4double , |
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| 88 | G4double , |
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| 89 | G4double& , |
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| 90 | G4GPILSelection* |
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| 91 | ){ return -1.0; }; |
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| 92 | |
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| 93 | virtual G4double PostStepGetPhysicalInteractionLength( |
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| 94 | const G4Track& , |
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| 95 | G4double , |
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| 96 | G4ForceCondition* |
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| 97 | ) { return -1.0; }; |
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| 98 | |
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| 99 | // no operation in PostStepDoIt and AlongStepDoIt |
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| 100 | virtual G4VParticleChange* PostStepDoIt( |
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| 101 | const G4Track& , |
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| 102 | const G4Step& |
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| 103 | ) {return 0;}; |
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| 104 | |
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| 105 | virtual G4VParticleChange* AlongStepDoIt( |
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| 106 | const G4Track& , |
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| 107 | const G4Step& |
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| 108 | ) {return 0;}; |
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| 109 | |
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| 110 | protected: // with description |
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| 111 | |
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| 112 | virtual G4double GetMeanLifeTime(const G4Track& aTrack,G4ForceCondition* condition)=0; |
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| 113 | // Calculates the mean life-time (i.e. for decays) of the |
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| 114 | // particle at rest due to the occurence of the given process, |
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| 115 | // or converts the probability of interaction (i.e. for |
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| 116 | // annihilation) into the life-time of the particle for the |
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| 117 | // occurence of the given process. |
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| 118 | |
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| 119 | private: |
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| 120 | // hide default constructor and assignment operator as private |
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| 121 | G4VRestProcess(); |
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| 122 | G4VRestProcess & operator=(const G4VRestProcess &right); |
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| 123 | }; |
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| 124 | |
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| 125 | // ----------------------------------------- |
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| 126 | // inlined function members implementation |
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| 127 | // ----------------------------------------- |
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| 128 | #include "G4Step.hh" |
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| 129 | #include "G4Track.hh" |
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| 130 | #include "G4MaterialTable.hh" |
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| 131 | #include "G4VParticleChange.hh" |
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| 132 | |
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| 133 | inline G4double G4VRestProcess::AtRestGetPhysicalInteractionLength( |
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| 134 | const G4Track& track, |
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| 135 | G4ForceCondition* condition |
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| 136 | ) |
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| 137 | { |
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| 138 | // beggining of tracking |
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| 139 | ResetNumberOfInteractionLengthLeft(); |
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| 140 | |
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| 141 | // condition is set to "Not Forced" |
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| 142 | *condition = NotForced; |
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| 143 | |
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| 144 | // get mean life time |
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| 145 | currentInteractionLength = GetMeanLifeTime(track, condition); |
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| 146 | |
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| 147 | #ifdef G4VERBOSE |
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| 148 | if ((currentInteractionLength <0.0) || (verboseLevel>2)){ |
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| 149 | G4cout << "G4VRestProcess::AtRestGetPhysicalInteractionLength "; |
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| 150 | G4cout << "[ " << GetProcessName() << "]" <<G4endl; |
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| 151 | track.GetDynamicParticle()->DumpInfo(); |
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| 152 | G4cout << " in Material " << track.GetMaterial()->GetName() <<G4endl; |
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| 153 | G4cout << "MeanLifeTime = " << currentInteractionLength/ns << "[ns]" <<G4endl; |
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| 154 | } |
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| 155 | #endif |
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| 156 | |
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| 157 | return theNumberOfInteractionLengthLeft * currentInteractionLength; |
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| 158 | } |
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| 159 | |
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| 160 | |
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| 161 | inline G4VParticleChange* G4VRestProcess::AtRestDoIt( |
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| 162 | const G4Track&, |
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| 163 | const G4Step& |
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| 164 | ) |
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| 165 | { |
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| 166 | // clear NumberOfInteractionLengthLeft |
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| 167 | ClearNumberOfInteractionLengthLeft(); |
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| 168 | |
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| 169 | return pParticleChange; |
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| 170 | } |
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| 171 | |
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| 172 | |
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| 173 | #endif |
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| 174 | |
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| 175 | |
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| 176 | |
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