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1 // 1 //
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25 // 25 //
26 // 26 //
>> 27 // $Id: G4Decay.hh,v 1.20 2008/09/19 03:19:53 kurasige Exp $
>> 28 // GEANT4 tag $Name: geant4-09-02 $
27 // 29 //
28 // 30 //
29 // ------------------------------------------- 31 // ------------------------------------------------------------
30 // GEANT 4 class header file 32 // GEANT 4 class header file
31 // 33 //
32 // History: first implementation, based o 34 // History: first implementation, based on object model of
33 // 7 July 1996 H.Kurashige 35 // 7 July 1996 H.Kurashige
34 // ------------------------------------------- 36 // ------------------------------------------------------------
35 // New Physics scheme 18 Jan. 1997 37 // New Physics scheme 18 Jan. 1997 H.Kurahige
36 // ------------------------------------------- 38 // ------------------------------------------------------------
37 // modified 4 Feb. 1997 39 // modified 4 Feb. 1997 H.Kurahige
38 // modified 8 Sep. 1997 40 // modified 8 Sep. 1997 H.Kurahige
39 // remove BuildPhysicsTable() 27 Nov. 1997 41 // remove BuildPhysicsTable() 27 Nov. 1997 H.Kurashige
40 // modified for new ParticleChange 12 Mar. 1 42 // modified for new ParticleChange 12 Mar. 1998 H.Kurashige
41 // added aPhysicsTable 2 Aug. 1998 43 // added aPhysicsTable 2 Aug. 1998 H.Kurashige
42 // PreAssignedDecayTime 18 Jan. 2001 44 // PreAssignedDecayTime 18 Jan. 2001 H.Kurashige
43 // Add External Decayer 23 Feb. 2001 45 // Add External Decayer 23 Feb. 2001 H.Kurashige
44 // Remove PhysicsTable 12 Feb. 2002 46 // Remove PhysicsTable 12 Feb. 2002 H.Kurashige
45 // Fixed bug in PostStepGPIL 47 // Fixed bug in PostStepGPIL
46 // in case of stopping during AlongStepDoIt 48 // in case of stopping during AlongStepDoIt 12 Mar. 2004 H.Kurashige
47 // Add GetRemainderLifeTime 10 Aug/2004 H.K 49 // Add GetRemainderLifeTime 10 Aug/2004 H.Kurashige
48 // Add DaughterPolarization 23 July 2008 50 // Add DaughterPolarization 23 July 2008 H.Kurashige
49 51
50 52
51 #ifndef G4Decay_h 53 #ifndef G4Decay_h
52 #define G4Decay_h 1 54 #define G4Decay_h 1
53 55
54 #include "G4ios.hh" 56 #include "G4ios.hh"
55 #include "globals.hh" 57 #include "globals.hh"
56 #include "G4VRestDiscreteProcess.hh" 58 #include "G4VRestDiscreteProcess.hh"
57 #include "G4ParticleChangeForDecay.hh" 59 #include "G4ParticleChangeForDecay.hh"
58 #include "G4DecayProcessType.hh" 60 #include "G4DecayProcessType.hh"
59 61
60 class G4VExtDecayer; 62 class G4VExtDecayer;
61 63
62 class G4Decay : public G4VRestDiscreteProcess 64 class G4Decay : public G4VRestDiscreteProcess
63 { 65 {
64 // Class Description 66 // Class Description
65 // This class is a decay process 67 // This class is a decay process
66 68
67 public: 69 public:
68 // Constructors 70 // Constructors
69 G4Decay(const G4String& processName ="Deca 71 G4Decay(const G4String& processName ="Decay");
70 72
71 // Destructor 73 // Destructor
72 virtual ~G4Decay(); 74 virtual ~G4Decay();
73 75
74 private: 76 private:
75 // copy constructor 77 // copy constructor
76 G4Decay(const G4Decay &right); 78 G4Decay(const G4Decay &right);
77 79
78 // Assignment Operation (generated) 80 // Assignment Operation (generated)
79 G4Decay & operator=(const G4Decay &right 81 G4Decay & operator=(const G4Decay &right);
80 82
81 public: //With Description 83 public: //With Description
82 // G4Decay Process has both 84 // G4Decay Process has both
83 // PostStepDoIt (for decay in flight) 85 // PostStepDoIt (for decay in flight)
84 // and 86 // and
85 // AtRestDoIt (for decay at rest) 87 // AtRestDoIt (for decay at rest)
86 88
87 virtual G4VParticleChange *PostStepDoIt( 89 virtual G4VParticleChange *PostStepDoIt(
88 const G4Track& aTrack, 90 const G4Track& aTrack,
89 const G4Step& aSt 91 const G4Step& aStep
90 ) override; << 92 );
91 93
92 virtual G4VParticleChange* AtRestDoIt( 94 virtual G4VParticleChange* AtRestDoIt(
93 const G4Track& aTrack, 95 const G4Track& aTrack,
94 const G4Step& aStep 96 const G4Step& aStep
95 ) override; << 97 );
96 98
97 virtual void BuildPhysicsTable(const G4Pa << 99 virtual void BuildPhysicsTable(const G4ParticleDefinition&);
98 // In G4Decay, thePhysicsTable stores val 100 // In G4Decay, thePhysicsTable stores values of
99 // beta * std::sqrt( 1 - beta*beta) 101 // beta * std::sqrt( 1 - beta*beta)
100 // as a function of normalized kinetic en 102 // as a function of normalized kinetic enregy (=Ekin/mass),
101 // becasuse this table is universal for a 103 // becasuse this table is universal for all particle types,
102 104
103 105
104 virtual G4bool IsApplicable(const G4Partic << 106 virtual G4bool IsApplicable(const G4ParticleDefinition&);
105 // returns "true" if the decay process can 107 // returns "true" if the decay process can be applied to
106 // the particle type. 108 // the particle type.
107 109
108 protected: // With Description 110 protected: // With Description
109 virtual G4VParticleChange* DecayIt( 111 virtual G4VParticleChange* DecayIt(
110 const G4Track& aTrack, 112 const G4Track& aTrack,
111 const G4Step& aStep 113 const G4Step& aStep
112 ); 114 );
113 // The DecayIt() method returns by pointer 115 // The DecayIt() method returns by pointer a particle-change object,
114 // which has information of daughter parti 116 // which has information of daughter particles.
115 117
116 // Set daughter polarization 118 // Set daughter polarization
117 // NO OPERATION in the base class of G4De 119 // NO OPERATION in the base class of G4Decay
118 virtual void DaughterPolarization(const G4 120 virtual void DaughterPolarization(const G4Track& aTrack,
119 G4DecayProducts* products); 121 G4DecayProducts* products);
120 122
121 public: 123 public:
122 virtual G4double AtRestGetPhysicalInteract 124 virtual G4double AtRestGetPhysicalInteractionLength(
123 const G4Track& tr 125 const G4Track& track,
124 G4ForceCondition* 126 G4ForceCondition* condition
125 ) override; << 127 );
126 128
127 virtual G4double PostStepGetPhysicalIntera 129 virtual G4double PostStepGetPhysicalInteractionLength(
128 const G4Track& tr 130 const G4Track& track,
129 G4double previo 131 G4double previousStepSize,
130 G4ForceCondition* 132 G4ForceCondition* condition
131 ) override; << 133 );
132 134
133 protected: // With Description 135 protected: // With Description
134 // GetMeanFreePath returns ctau*beta*gamma 136 // GetMeanFreePath returns ctau*beta*gamma for decay in flight
135 // GetMeanLifeTime returns ctau for decay 137 // GetMeanLifeTime returns ctau for decay at rest
136 virtual G4double GetMeanFreePath(const G4T 138 virtual G4double GetMeanFreePath(const G4Track& aTrack,
137 G4double previ 139 G4double previousStepSize,
138 G4ForceCondition 140 G4ForceCondition* condition
139 ) override; << 141 );
140 142
141 virtual G4double GetMeanLifeTime(const G4T 143 virtual G4double GetMeanLifeTime(const G4Track& aTrack,
142 G4ForceCondition 144 G4ForceCondition* condition
143 ) override; << 145 );
144 146
145 public: //With Description 147 public: //With Description
146 virtual void StartTracking(G4Track*) over << 148 virtual void StartTracking(G4Track*);
147 virtual void EndTracking() override; << 149 virtual void EndTracking();
148 // inform Start/End of tracking for each 150 // inform Start/End of tracking for each track to the physics process
149 151
150 public: //With Description 152 public: //With Description
151 void SetExtDecayer(G4VExtDecayer*); 153 void SetExtDecayer(G4VExtDecayer*);
152 const G4VExtDecayer* GetExtDecayer() cons 154 const G4VExtDecayer* GetExtDecayer() const;
153 // Set/Get External Decayer 155 // Set/Get External Decayer
154 156
155 G4double GetRemainderLifeTime() const; 157 G4double GetRemainderLifeTime() const;
156 //Get Remainder of life time at rest decay 158 //Get Remainder of life time at rest decay
157 159
158 virtual void ProcessDescription(std::ostre << 160 public:
159 // << 161 void SetVerboseLevel(G4int value);
>> 162 G4int GetVerboseLevel() const;
160 163
161 protected: 164 protected:
162 G4int verboseLevel; 165 G4int verboseLevel;
163 // controle flag for output message 166 // controle flag for output message
164 // 0: Silent 167 // 0: Silent
165 // 1: Warning message 168 // 1: Warning message
166 // 2: More 169 // 2: More
167 170
168 protected: 171 protected:
169 // HighestValue. 172 // HighestValue.
170 const G4double HighestValue; 173 const G4double HighestValue;
171 174
172 // Remainder of life time at rest 175 // Remainder of life time at rest
173 G4double fRemainderLifeTim 176 G4double fRemainderLifeTime;
174 177
175 // ParticleChange for decay process 178 // ParticleChange for decay process
176 G4ParticleChangeForDecay fParticleChangeFo 179 G4ParticleChangeForDecay fParticleChangeForDecay;
177 180
178 // External Decayer 181 // External Decayer
179 G4VExtDecayer* pExtDecayer; 182 G4VExtDecayer* pExtDecayer;
180 }; 183 };
181 184
>> 185 inline
>> 186 void G4Decay::SetVerboseLevel(G4int value){ verboseLevel = value; }
>> 187
>> 188 inline
>> 189 G4int G4Decay::GetVerboseLevel() const { return verboseLevel; }
>> 190
182 inline 191 inline
183 G4VParticleChange* G4Decay::AtRestDoIt( 192 G4VParticleChange* G4Decay::AtRestDoIt(
184 const G4Track& aTrack, 193 const G4Track& aTrack,
185 const G4Step& aStep 194 const G4Step& aStep
186 ) 195 )
187 { 196 {
188 return DecayIt(aTrack, aStep); 197 return DecayIt(aTrack, aStep);
189 } 198 }
190 199
>> 200 inline
>> 201 G4VParticleChange* G4Decay::PostStepDoIt(
>> 202 const G4Track& aTrack,
>> 203 const G4Step& aStep
>> 204 )
>> 205 {
>> 206 return DecayIt(aTrack, aStep);
>> 207 }
191 208
192 inline 209 inline
193 const G4VExtDecayer* G4Decay::GetExtDecayer() 210 const G4VExtDecayer* G4Decay::GetExtDecayer() const
194 { 211 {
195 return pExtDecayer; 212 return pExtDecayer;
196 } 213 }
197 214
198 inline 215 inline
199 G4double G4Decay::GetRemainderLifeTime() cons 216 G4double G4Decay::GetRemainderLifeTime() const
200 { 217 {
201 return fRemainderLifeTime; 218 return fRemainderLifeTime;
202 } 219 }
203 220
204 #endif 221 #endif
205 222
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