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1 // 1 //
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // 26 //
>> 27 // $Id: G4Decay.hh,v 1.18 2007/07/23 23:13:04 kurasige Exp $
>> 28 // GEANT4 tag $Name: geant4-09-01-patch-01 $
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" <<
59 <<
60 class G4VExtDecayer; 60 class G4VExtDecayer;
61 61
62 class G4Decay : public G4VRestDiscreteProcess 62 class G4Decay : public G4VRestDiscreteProcess
63 { 63 {
64 // Class Description 64 // Class Description
65 // This class is a decay process 65 // This class is a decay process
66 66
67 public: 67 public:
68 // Constructors 68 // Constructors
69 G4Decay(const G4String& processName ="Deca 69 G4Decay(const G4String& processName ="Decay");
70 70
71 // Destructor 71 // Destructor
72 virtual ~G4Decay(); 72 virtual ~G4Decay();
73 73
74 private: 74 private:
75 // copy constructor 75 // copy constructor
76 G4Decay(const G4Decay &right); 76 G4Decay(const G4Decay &right);
77 77
78 // Assignment Operation (generated) 78 // Assignment Operation (generated)
79 G4Decay & operator=(const G4Decay &right 79 G4Decay & operator=(const G4Decay &right);
80 80
81 public: //With Description 81 public: //With Description
82 // G4Decay Process has both 82 // G4Decay Process has both
83 // PostStepDoIt (for decay in flight) 83 // PostStepDoIt (for decay in flight)
84 // and 84 // and
85 // AtRestDoIt (for decay at rest) 85 // AtRestDoIt (for decay at rest)
86 86
87 virtual G4VParticleChange *PostStepDoIt( 87 virtual G4VParticleChange *PostStepDoIt(
88 const G4Track& aTrack, 88 const G4Track& aTrack,
89 const G4Step& aSt 89 const G4Step& aStep
90 ) override; << 90 );
91 91
92 virtual G4VParticleChange* AtRestDoIt( 92 virtual G4VParticleChange* AtRestDoIt(
93 const G4Track& aTrack, 93 const G4Track& aTrack,
94 const G4Step& aStep 94 const G4Step& aStep
95 ) override; << 95 );
96 96
97 virtual void BuildPhysicsTable(const G4Pa << 97 virtual void BuildPhysicsTable(const G4ParticleDefinition&);
98 // In G4Decay, thePhysicsTable stores val 98 // In G4Decay, thePhysicsTable stores values of
99 // beta * std::sqrt( 1 - beta*beta) 99 // beta * std::sqrt( 1 - beta*beta)
100 // as a function of normalized kinetic en 100 // as a function of normalized kinetic enregy (=Ekin/mass),
101 // becasuse this table is universal for a 101 // becasuse this table is universal for all particle types,
102 102
103 103
104 virtual G4bool IsApplicable(const G4Partic << 104 virtual G4bool IsApplicable(const G4ParticleDefinition&);
105 // returns "true" if the decay process can 105 // returns "true" if the decay process can be applied to
106 // the particle type. 106 // the particle type.
107 107
108 protected: // With Description 108 protected: // With Description
109 virtual G4VParticleChange* DecayIt( 109 virtual G4VParticleChange* DecayIt(
110 const G4Track& aTrack, 110 const G4Track& aTrack,
111 const G4Step& aStep 111 const G4Step& aStep
112 ); 112 );
113 // The DecayIt() method returns by pointer 113 // The DecayIt() method returns by pointer a particle-change object,
114 // which has information of daughter parti 114 // which has information of daughter particles.
115 115
116 // Set daughter polarization 116 // Set daughter polarization
117 // NO OPERATION in the base class of G4De 117 // NO OPERATION in the base class of G4Decay
118 virtual void DaughterPolarization(const G4 118 virtual void DaughterPolarization(const G4Track& aTrack,
119 G4DecayProducts* products); 119 G4DecayProducts* products);
120 120
121 public: 121 public:
122 virtual G4double AtRestGetPhysicalInteract 122 virtual G4double AtRestGetPhysicalInteractionLength(
123 const G4Track& tr 123 const G4Track& track,
124 G4ForceCondition* 124 G4ForceCondition* condition
125 ) override; << 125 );
126 126
127 virtual G4double PostStepGetPhysicalIntera 127 virtual G4double PostStepGetPhysicalInteractionLength(
128 const G4Track& tr 128 const G4Track& track,
129 G4double previo 129 G4double previousStepSize,
130 G4ForceCondition* 130 G4ForceCondition* condition
131 ) override; << 131 );
132 132
133 protected: // With Description 133 protected: // With Description
134 // GetMeanFreePath returns ctau*beta*gamma 134 // GetMeanFreePath returns ctau*beta*gamma for decay in flight
135 // GetMeanLifeTime returns ctau for decay 135 // GetMeanLifeTime returns ctau for decay at rest
136 virtual G4double GetMeanFreePath(const G4T 136 virtual G4double GetMeanFreePath(const G4Track& aTrack,
137 G4double previ 137 G4double previousStepSize,
138 G4ForceCondition 138 G4ForceCondition* condition
139 ) override; << 139 );
140 140
141 virtual G4double GetMeanLifeTime(const G4T 141 virtual G4double GetMeanLifeTime(const G4Track& aTrack,
142 G4ForceCondition 142 G4ForceCondition* condition
143 ) override; << 143 );
144 144
145 public: //With Description 145 public: //With Description
146 virtual void StartTracking(G4Track*) over << 146 virtual void StartTracking(G4Track*);
147 virtual void EndTracking() override; << 147 virtual void EndTracking();
148 // inform Start/End of tracking for each 148 // inform Start/End of tracking for each track to the physics process
149 149
150 public: //With Description 150 public: //With Description
151 void SetExtDecayer(G4VExtDecayer*); 151 void SetExtDecayer(G4VExtDecayer*);
152 const G4VExtDecayer* GetExtDecayer() cons 152 const G4VExtDecayer* GetExtDecayer() const;
153 // Set/Get External Decayer 153 // Set/Get External Decayer
154 154
155 G4double GetRemainderLifeTime() const; 155 G4double GetRemainderLifeTime() const;
156 //Get Remainder of life time at rest decay 156 //Get Remainder of life time at rest decay
157 157
158 virtual void ProcessDescription(std::ostre << 158 public:
159 // << 159 void SetVerboseLevel(G4int value);
>> 160 G4int GetVerboseLevel() const;
160 161
161 protected: 162 protected:
162 G4int verboseLevel; 163 G4int verboseLevel;
163 // controle flag for output message 164 // controle flag for output message
164 // 0: Silent 165 // 0: Silent
165 // 1: Warning message 166 // 1: Warning message
166 // 2: More 167 // 2: More
167 168
168 protected: 169 protected:
169 // HighestValue. 170 // HighestValue.
170 const G4double HighestValue; 171 const G4double HighestValue;
171 172
172 // Remainder of life time at rest 173 // Remainder of life time at rest
173 G4double fRemainderLifeTim 174 G4double fRemainderLifeTime;
174 175
175 // ParticleChange for decay process 176 // ParticleChange for decay process
176 G4ParticleChangeForDecay fParticleChangeFo 177 G4ParticleChangeForDecay fParticleChangeForDecay;
177 178
178 // External Decayer 179 // External Decayer
179 G4VExtDecayer* pExtDecayer; 180 G4VExtDecayer* pExtDecayer;
180 }; 181 };
181 182
>> 183 inline
>> 184 void G4Decay::SetVerboseLevel(G4int value){ verboseLevel = value; }
>> 185
>> 186 inline
>> 187 G4int G4Decay::GetVerboseLevel() const { return verboseLevel; }
>> 188
182 inline 189 inline
183 G4VParticleChange* G4Decay::AtRestDoIt( 190 G4VParticleChange* G4Decay::AtRestDoIt(
184 const G4Track& aTrack, 191 const G4Track& aTrack,
185 const G4Step& aStep 192 const G4Step& aStep
186 ) 193 )
187 { 194 {
188 return DecayIt(aTrack, aStep); 195 return DecayIt(aTrack, aStep);
189 } 196 }
190 197
>> 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 }
191 212
192 inline 213 inline
193 const G4VExtDecayer* G4Decay::GetExtDecayer() 214 const G4VExtDecayer* G4Decay::GetExtDecayer() const
194 { 215 {
195 return pExtDecayer; 216 return pExtDecayer;
196 } 217 }
197 218
198 inline 219 inline
199 G4double G4Decay::GetRemainderLifeTime() cons 220 G4double G4Decay::GetRemainderLifeTime() const
200 { 221 {
201 return fRemainderLifeTime; 222 return fRemainderLifeTime;
202 } 223 }
203 224
204 #endif 225 #endif
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