[819] | 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: G4Decay.hh,v 1.18 2007/07/23 23:13:04 kurasige Exp $ |
---|
| 28 | // GEANT4 tag $Name: geant4-09-01-patch-02 $ |
---|
| 29 | // |
---|
| 30 | // |
---|
| 31 | // ------------------------------------------------------------ |
---|
| 32 | // GEANT 4 class header file |
---|
| 33 | // |
---|
| 34 | // History: first implementation, based on object model of |
---|
| 35 | // 7 July 1996 H.Kurashige |
---|
| 36 | // ------------------------------------------------------------ |
---|
| 37 | // New Physics scheme 18 Jan. 1997 H.Kurahige |
---|
| 38 | // ------------------------------------------------------------ |
---|
| 39 | // modified 4 Feb. 1997 H.Kurahige |
---|
| 40 | // modified 8 Sep. 1997 H.Kurahige |
---|
| 41 | // remove BuildPhysicsTable() 27 Nov. 1997 H.Kurashige |
---|
| 42 | // modified for new ParticleChange 12 Mar. 1998 H.Kurashige |
---|
| 43 | // added aPhysicsTable 2 Aug. 1998 H.Kurashige |
---|
| 44 | // PreAssignedDecayTime 18 Jan. 2001 H.Kurashige |
---|
| 45 | // Add External Decayer 23 Feb. 2001 H.Kurashige |
---|
| 46 | // Remove PhysicsTable 12 Feb. 2002 H.Kurashige |
---|
| 47 | // Fixed bug in PostStepGPIL |
---|
| 48 | // in case of stopping during AlongStepDoIt 12 Mar. 2004 H.Kurashige |
---|
| 49 | // Add GetRemainderLifeTime 10 Aug/2004 H.Kurashige |
---|
| 50 | // Add DaughterPolarization 23 July 2008 H.Kurashige |
---|
| 51 | |
---|
| 52 | |
---|
| 53 | #ifndef G4Decay_h |
---|
| 54 | #define G4Decay_h 1 |
---|
| 55 | |
---|
| 56 | #include "G4ios.hh" |
---|
| 57 | #include "globals.hh" |
---|
| 58 | #include "G4VRestDiscreteProcess.hh" |
---|
| 59 | #include "G4ParticleChangeForDecay.hh" |
---|
| 60 | class G4VExtDecayer; |
---|
| 61 | |
---|
| 62 | class G4Decay : public G4VRestDiscreteProcess |
---|
| 63 | { |
---|
| 64 | // Class Description |
---|
| 65 | // This class is a decay process |
---|
| 66 | |
---|
| 67 | public: |
---|
| 68 | // Constructors |
---|
| 69 | G4Decay(const G4String& processName ="Decay"); |
---|
| 70 | |
---|
| 71 | // Destructor |
---|
| 72 | virtual ~G4Decay(); |
---|
| 73 | |
---|
| 74 | private: |
---|
| 75 | // copy constructor |
---|
| 76 | G4Decay(const G4Decay &right); |
---|
| 77 | |
---|
| 78 | // Assignment Operation (generated) |
---|
| 79 | G4Decay & operator=(const G4Decay &right); |
---|
| 80 | |
---|
| 81 | public: //With Description |
---|
| 82 | // G4Decay Process has both |
---|
| 83 | // PostStepDoIt (for decay in flight) |
---|
| 84 | // and |
---|
| 85 | // AtRestDoIt (for decay at rest) |
---|
| 86 | |
---|
| 87 | virtual G4VParticleChange *PostStepDoIt( |
---|
| 88 | const G4Track& aTrack, |
---|
| 89 | const G4Step& aStep |
---|
| 90 | ); |
---|
| 91 | |
---|
| 92 | virtual G4VParticleChange* AtRestDoIt( |
---|
| 93 | const G4Track& aTrack, |
---|
| 94 | const G4Step& aStep |
---|
| 95 | ); |
---|
| 96 | |
---|
| 97 | virtual void BuildPhysicsTable(const G4ParticleDefinition&); |
---|
| 98 | // In G4Decay, thePhysicsTable stores values of |
---|
| 99 | // beta * std::sqrt( 1 - beta*beta) |
---|
| 100 | // as a function of normalized kinetic enregy (=Ekin/mass), |
---|
| 101 | // becasuse this table is universal for all particle types, |
---|
| 102 | |
---|
| 103 | |
---|
| 104 | virtual G4bool IsApplicable(const G4ParticleDefinition&); |
---|
| 105 | // returns "true" if the decay process can be applied to |
---|
| 106 | // the particle type. |
---|
| 107 | |
---|
| 108 | protected: // With Description |
---|
| 109 | virtual G4VParticleChange* DecayIt( |
---|
| 110 | const G4Track& aTrack, |
---|
| 111 | const G4Step& aStep |
---|
| 112 | ); |
---|
| 113 | // The DecayIt() method returns by pointer a particle-change object, |
---|
| 114 | // which has information of daughter particles. |
---|
| 115 | |
---|
| 116 | // Set daughter polarization |
---|
| 117 | // NO OPERATION in the base class of G4Decay |
---|
| 118 | virtual void DaughterPolarization(const G4Track& aTrack, |
---|
| 119 | G4DecayProducts* products); |
---|
| 120 | |
---|
| 121 | public: |
---|
| 122 | virtual G4double AtRestGetPhysicalInteractionLength( |
---|
| 123 | const G4Track& track, |
---|
| 124 | G4ForceCondition* condition |
---|
| 125 | ); |
---|
| 126 | |
---|
| 127 | virtual G4double PostStepGetPhysicalInteractionLength( |
---|
| 128 | const G4Track& track, |
---|
| 129 | G4double previousStepSize, |
---|
| 130 | G4ForceCondition* condition |
---|
| 131 | ); |
---|
| 132 | |
---|
| 133 | protected: // With Description |
---|
| 134 | // GetMeanFreePath returns ctau*beta*gamma for decay in flight |
---|
| 135 | // GetMeanLifeTime returns ctau for decay at rest |
---|
| 136 | virtual G4double GetMeanFreePath(const G4Track& aTrack, |
---|
| 137 | G4double previousStepSize, |
---|
| 138 | G4ForceCondition* condition |
---|
| 139 | ); |
---|
| 140 | |
---|
| 141 | virtual G4double GetMeanLifeTime(const G4Track& aTrack, |
---|
| 142 | G4ForceCondition* condition |
---|
| 143 | ); |
---|
| 144 | |
---|
| 145 | public: //With Description |
---|
| 146 | virtual void StartTracking(G4Track*); |
---|
| 147 | virtual void EndTracking(); |
---|
| 148 | // inform Start/End of tracking for each track to the physics process |
---|
| 149 | |
---|
| 150 | public: //With Description |
---|
| 151 | void SetExtDecayer(G4VExtDecayer*); |
---|
| 152 | const G4VExtDecayer* GetExtDecayer() const; |
---|
| 153 | // Set/Get External Decayer |
---|
| 154 | |
---|
| 155 | G4double GetRemainderLifeTime() const; |
---|
| 156 | //Get Remainder of life time at rest decay |
---|
| 157 | |
---|
| 158 | public: |
---|
| 159 | void SetVerboseLevel(G4int value); |
---|
| 160 | G4int GetVerboseLevel() const; |
---|
| 161 | |
---|
| 162 | protected: |
---|
| 163 | G4int verboseLevel; |
---|
| 164 | // controle flag for output message |
---|
| 165 | // 0: Silent |
---|
| 166 | // 1: Warning message |
---|
| 167 | // 2: More |
---|
| 168 | |
---|
| 169 | protected: |
---|
| 170 | // HighestValue. |
---|
| 171 | const G4double HighestValue; |
---|
| 172 | |
---|
| 173 | // Remainder of life time at rest |
---|
| 174 | G4double fRemainderLifeTime; |
---|
| 175 | |
---|
| 176 | // ParticleChange for decay process |
---|
| 177 | G4ParticleChangeForDecay fParticleChangeForDecay; |
---|
| 178 | |
---|
| 179 | // External Decayer |
---|
| 180 | G4VExtDecayer* pExtDecayer; |
---|
| 181 | }; |
---|
| 182 | |
---|
| 183 | inline |
---|
| 184 | void G4Decay::SetVerboseLevel(G4int value){ verboseLevel = value; } |
---|
| 185 | |
---|
| 186 | inline |
---|
| 187 | G4int G4Decay::GetVerboseLevel() const { return verboseLevel; } |
---|
| 188 | |
---|
| 189 | inline |
---|
| 190 | G4VParticleChange* G4Decay::AtRestDoIt( |
---|
| 191 | const G4Track& aTrack, |
---|
| 192 | const G4Step& aStep |
---|
| 193 | ) |
---|
| 194 | { |
---|
| 195 | return DecayIt(aTrack, aStep); |
---|
| 196 | } |
---|
| 197 | |
---|
| 198 | inline |
---|
| 199 | G4VParticleChange* G4Decay::PostStepDoIt( |
---|
| 200 | const G4Track& aTrack, |
---|
| 201 | const G4Step& aStep |
---|
| 202 | ) |
---|
| 203 | { |
---|
| 204 | return DecayIt(aTrack, aStep); |
---|
| 205 | } |
---|
| 206 | |
---|
| 207 | inline |
---|
| 208 | void G4Decay::SetExtDecayer(G4VExtDecayer* val) |
---|
| 209 | { |
---|
| 210 | pExtDecayer = val; |
---|
| 211 | } |
---|
| 212 | |
---|
| 213 | inline |
---|
| 214 | const G4VExtDecayer* G4Decay::GetExtDecayer() const |
---|
| 215 | { |
---|
| 216 | return pExtDecayer; |
---|
| 217 | } |
---|
| 218 | |
---|
| 219 | inline |
---|
| 220 | G4double G4Decay::GetRemainderLifeTime() const |
---|
| 221 | { |
---|
| 222 | return fRemainderLifeTime; |
---|
| 223 | } |
---|
| 224 | |
---|
| 225 | #endif |
---|
| 226 | |
---|
| 227 | |
---|
| 228 | |
---|
| 229 | |
---|
| 230 | |
---|
| 231 | |
---|
| 232 | |
---|
| 233 | |
---|
| 234 | |
---|
| 235 | |
---|