Geant4 Cross Reference |
1 // 1 2 // ******************************************* 3 // * License and Disclaimer 4 // * 5 // * The Geant4 software is copyright of th 6 // * the Geant4 Collaboration. It is provided 7 // * conditions of the Geant4 Software License 8 // * LICENSE and available at http://cern.ch/ 9 // * include a list of copyright holders. 10 // * 11 // * Neither the authors of this software syst 12 // * institutes,nor the agencies providing fin 13 // * work make any representation or warran 14 // * regarding this software system or assum 15 // * use. Please see the license in the file 16 // * for the full disclaimer and the limitatio 17 // * 18 // * This code implementation is the result 19 // * technical work of the GEANT4 collaboratio 20 // * By using, copying, modifying or distri 21 // * any work based on the software) you ag 22 // * use in resulting scientific publicati 23 // * acceptance of all terms of the Geant4 Sof 24 // ******************************************* 25 // 26 // 27 // 28 // 29 // ------------------------------------------- 30 // GEANT 4 class header file 31 // 32 // 33 #ifndef G4UnknownDecay_h 34 #define G4UnknownDecay_h 1 35 36 #include <CLHEP/Units/PhysicalConstants.h> 37 38 #include "G4ios.hh" 39 #include "globals.hh" 40 #include "G4VDiscreteProcess.hh" 41 #include "G4ParticleChangeForDecay.hh" 42 43 class G4UnknownDecay : public G4VDiscreteProce 44 { 45 // Class Description 46 // This class is a decay process for "unkno 47 48 public: 49 // Constructors 50 G4UnknownDecay(const G4String& processName 51 52 // Destructor 53 virtual ~G4UnknownDecay(); 54 55 private: 56 // copy constructor 57 G4UnknownDecay(const G4UnknownDecay &rig 58 59 // Assignment Operation (generated) 60 G4UnknownDecay & operator=(const G4Unkno 61 62 public: //With Description 63 64 virtual G4VParticleChange *PostStepDoIt( 65 const G4Track& aTrack, 66 const G4Step& aSt 67 ) override; 68 69 virtual void BuildPhysicsTable(const G4Pa 70 // In G4UnknownDecay, thePhysicsTable sto 71 // beta * std::sqrt( 1 - beta*beta) 72 // as a function of normalized kinetic en 73 // becasuse this table is universal for a 74 75 76 virtual G4bool IsApplicable(const G4Partic 77 // returns "true" if the decay process can 78 // the particle type. 79 80 virtual void ProcessDescription(std::ostre 81 // 82 83 protected: // With Description 84 virtual G4VParticleChange* DecayIt( 85 const G4Track& aTrack, 86 const G4Step& aStep 87 ) ; 88 // The DecayIt() method returns by pointer 89 // which has information of daughter parti 90 91 public: 92 93 virtual G4double PostStepGetPhysicalIntera 94 const G4Track& tr 95 G4double previo 96 G4ForceCondition* 97 ) override; 98 99 100 protected: // With Description 101 // GetMeanFreePath returns ctau*beta*gamma 102 virtual G4double GetMeanFreePath(const G4T 103 G4double previ 104 G4ForceCondition 105 ) override; 106 107 private: 108 G4int verboseLevel; 109 // controle flag for output message 110 // 0: Silent 111 // 1: Warning message 112 // 2: More 113 114 private: 115 // HighestValue. 116 const G4double HighestValue; 117 118 // ParticleChange for decay process 119 G4ParticleChangeForDecay fParticleChangeFo 120 121 }; 122 123 inline 124 G4double G4UnknownDecay::PostStepGetPhysicalI 125 const G4Track& tr 126 G4double /*prev 127 G4ForceCondition* 128 ) 129 { 130 // pre-assigned UnknownDecay time 131 G4double pTime = track.GetDynamicParticle()- 132 133 if (pTime < 0.) pTime = DBL_MIN; 134 135 // condition is set to "Not Forced" 136 *condition = NotForced; 137 138 // reminder proper time 139 G4double remainder = pTime - track.GetProper 140 if (remainder <= 0.0) remainder = DBL_MIN; 141 142 // use pre-assigned Decay time to determine 143 //return GetMeanFreePath(track, previousStep 144 return remainder*CLHEP::c_light; 145 146 } 147 148 inline 149 G4VParticleChange* G4UnknownDecay::PostStepD 150 const G4Track& aTrack, 151 const G4Step& aStep 152 ) 153 { 154 return DecayIt(aTrack, aStep); 155 } 156 157 #endif 158 159 160 161 162 163 164 165 166 167 168