[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: G4UnknownDecay.hh,v 1.3 2006/06/29 19:30:56 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 | // |
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| 35 | #ifndef G4UnknownDecay_h |
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| 36 | #define G4UnknownDecay_h 1 |
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| 37 | |
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| 38 | #include "G4ios.hh" |
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| 39 | #include "globals.hh" |
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| 40 | #include "G4VDiscreteProcess.hh" |
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| 41 | #include "G4ParticleChangeForDecay.hh" |
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| 42 | |
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| 43 | class G4UnknownDecay : public G4VDiscreteProcess |
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| 44 | { |
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| 45 | // Class Description |
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| 46 | // This class is a decay process for "unknown" particle. |
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| 47 | |
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| 48 | public: |
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| 49 | // Constructors |
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| 50 | G4UnknownDecay(const G4String& processName ="UnknownDecay"); |
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| 51 | |
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| 52 | // Destructor |
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| 53 | virtual ~G4UnknownDecay(); |
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| 54 | |
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| 55 | private: |
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| 56 | // copy constructor |
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| 57 | G4UnknownDecay(const G4UnknownDecay &right); |
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| 58 | |
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| 59 | // Assignment Operation (generated) |
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| 60 | G4UnknownDecay & operator=(const G4UnknownDecay &right); |
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| 61 | |
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| 62 | public: //With Description |
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| 63 | |
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| 64 | virtual G4VParticleChange *PostStepDoIt( |
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| 65 | const G4Track& aTrack, |
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| 66 | const G4Step& aStep |
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| 67 | ); |
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| 68 | |
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| 69 | virtual void BuildPhysicsTable(const G4ParticleDefinition&); |
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| 70 | // In G4UnknownDecay, thePhysicsTable stores values of |
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| 71 | // beta * std::sqrt( 1 - beta*beta) |
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| 72 | // as a function of normalized kinetic enregy (=Ekin/mass), |
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| 73 | // becasuse this table is universal for all particle types, |
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| 74 | |
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| 75 | |
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| 76 | virtual G4bool IsApplicable(const G4ParticleDefinition&); |
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| 77 | // returns "true" if the decay process can be applied to |
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| 78 | // the particle type. |
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| 79 | |
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| 80 | protected: // With Description |
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| 81 | virtual G4VParticleChange* DecayIt( |
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| 82 | const G4Track& aTrack, |
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| 83 | const G4Step& aStep |
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| 84 | ); |
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| 85 | // The DecayIt() method returns by pointer a particle-change object, |
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| 86 | // which has information of daughter particles. |
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| 87 | |
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| 88 | public: |
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| 89 | |
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| 90 | virtual G4double PostStepGetPhysicalInteractionLength( |
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| 91 | const G4Track& track, |
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| 92 | G4double previousStepSize, |
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| 93 | G4ForceCondition* condition |
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| 94 | ); |
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| 95 | |
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| 96 | |
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| 97 | protected: // With Description |
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| 98 | // GetMeanFreePath returns ctau*beta*gamma for decay in flight |
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| 99 | virtual G4double GetMeanFreePath(const G4Track& aTrack, |
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| 100 | G4double previousStepSize, |
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| 101 | G4ForceCondition* condition |
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| 102 | ); |
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| 103 | |
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| 104 | public: |
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| 105 | void SetVerboseLevel(G4int value); |
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| 106 | G4int GetVerboseLevel() const; |
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| 107 | |
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| 108 | private: |
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| 109 | G4int verboseLevel; |
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| 110 | // controle flag for output message |
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| 111 | // 0: Silent |
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| 112 | // 1: Warning message |
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| 113 | // 2: More |
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| 114 | |
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| 115 | private: |
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| 116 | // HighestValue. |
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| 117 | const G4double HighestValue; |
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| 118 | |
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| 119 | // ParticleChange for decay process |
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| 120 | G4ParticleChangeForDecay fParticleChangeForDecay; |
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| 121 | |
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| 122 | }; |
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| 123 | |
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| 124 | inline |
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| 125 | G4double G4UnknownDecay::PostStepGetPhysicalInteractionLength( |
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| 126 | const G4Track& track, |
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| 127 | G4double /*previousStepSize*/, |
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| 128 | G4ForceCondition* condition |
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| 129 | ) |
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| 130 | { |
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| 131 | // pre-assigned UnknownDecay time |
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| 132 | G4double pTime = track.GetDynamicParticle()->GetPreAssignedDecayProperTime(); |
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| 133 | |
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| 134 | if (pTime < 0.) pTime = DBL_MIN; |
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| 135 | |
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| 136 | // condition is set to "Not Forced" |
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| 137 | *condition = NotForced; |
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| 138 | |
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| 139 | // reminder proper time |
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| 140 | G4double remainder = pTime - track.GetProperTime(); |
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| 141 | if (remainder <= 0.0) remainder = DBL_MIN; |
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| 142 | |
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| 143 | // use pre-assigned Decay time to determine PIL |
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| 144 | //return GetMeanFreePath(track, previousStepSize, condition); |
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| 145 | return remainder*c_light; |
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| 146 | |
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| 147 | } |
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| 148 | |
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| 149 | inline |
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| 150 | void G4UnknownDecay::SetVerboseLevel(G4int value){ verboseLevel = value; } |
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| 151 | |
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| 152 | inline |
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| 153 | G4int G4UnknownDecay::GetVerboseLevel() const { return verboseLevel; } |
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| 154 | |
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| 155 | inline |
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| 156 | G4VParticleChange* G4UnknownDecay::PostStepDoIt( |
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| 157 | const G4Track& aTrack, |
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| 158 | const G4Step& aStep |
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| 159 | ) |
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| 160 | { |
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| 161 | return DecayIt(aTrack, aStep); |
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| 162 | } |
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| 163 | |
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| 164 | #endif |
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