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1 // 1 //
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24 // ******************************************* 21 // ********************************************************************
25 // 22 //
26 // 23 //
>> 24 // $Id: G4Decay.hh,v 1.13 2004/12/02 07:06:30 kurasige Exp $
>> 25 // GEANT4 tag $Name: geant4-07-00-patch-01 $
27 // 26 //
28 // 27 //
29 // ------------------------------------------- 28 // ------------------------------------------------------------
30 // GEANT 4 class header file 29 // GEANT 4 class header file
31 // 30 //
32 // History: first implementation, based o 31 // History: first implementation, based on object model of
33 // 7 July 1996 H.Kurashige 32 // 7 July 1996 H.Kurashige
34 // ------------------------------------------- 33 // ------------------------------------------------------------
35 // New Physics scheme 18 Jan. 1997 34 // New Physics scheme 18 Jan. 1997 H.Kurahige
36 // ------------------------------------------- 35 // ------------------------------------------------------------
37 // modified 4 Feb. 1997 36 // modified 4 Feb. 1997 H.Kurahige
38 // modified 8 Sep. 1997 37 // modified 8 Sep. 1997 H.Kurahige
39 // remove BuildPhysicsTable() 27 Nov. 1997 38 // remove BuildPhysicsTable() 27 Nov. 1997 H.Kurashige
40 // modified for new ParticleChange 12 Mar. 1 39 // modified for new ParticleChange 12 Mar. 1998 H.Kurashige
41 // added aPhysicsTable 2 Aug. 1998 40 // added aPhysicsTable 2 Aug. 1998 H.Kurashige
42 // PreAssignedDecayTime 18 Jan. 2001 41 // PreAssignedDecayTime 18 Jan. 2001 H.Kurashige
43 // Add External Decayer 23 Feb. 2001 42 // Add External Decayer 23 Feb. 2001 H.Kurashige
44 // Remove PhysicsTable 12 Feb. 2002 43 // Remove PhysicsTable 12 Feb. 2002 H.Kurashige
45 // Fixed bug in PostStepGPIL 44 // Fixed bug in PostStepGPIL
46 // in case of stopping during AlongStepDoIt 45 // in case of stopping during AlongStepDoIt 12 Mar. 2004 H.Kurashige
47 // Add GetRemainderLifeTime 10 Aug/2004 H.K 46 // Add GetRemainderLifeTime 10 Aug/2004 H.Kurashige
48 // Add DaughterPolarization 23 July 2008 <<
49 <<
50 47
51 #ifndef G4Decay_h 48 #ifndef G4Decay_h
52 #define G4Decay_h 1 49 #define G4Decay_h 1
53 50
54 #include "G4ios.hh" 51 #include "G4ios.hh"
55 #include "globals.hh" 52 #include "globals.hh"
56 #include "G4VRestDiscreteProcess.hh" 53 #include "G4VRestDiscreteProcess.hh"
57 #include "G4ParticleChangeForDecay.hh" 54 #include "G4ParticleChangeForDecay.hh"
58 #include "G4DecayProcessType.hh" <<
59 <<
60 class G4VExtDecayer; 55 class G4VExtDecayer;
61 56
62 class G4Decay : public G4VRestDiscreteProcess 57 class G4Decay : public G4VRestDiscreteProcess
63 { 58 {
64 // Class Description 59 // Class Description
65 // This class is a decay process 60 // This class is a decay process
66 61
67 public: 62 public:
68 // Constructors 63 // Constructors
69 G4Decay(const G4String& processName ="Deca 64 G4Decay(const G4String& processName ="Decay");
70 65
71 // Destructor 66 // Destructor
72 virtual ~G4Decay(); 67 virtual ~G4Decay();
73 68
74 private: 69 private:
75 // copy constructor 70 // copy constructor
76 G4Decay(const G4Decay &right); 71 G4Decay(const G4Decay &right);
77 72
78 // Assignment Operation (generated) 73 // Assignment Operation (generated)
79 G4Decay & operator=(const G4Decay &right 74 G4Decay & operator=(const G4Decay &right);
80 75
81 public: //With Description 76 public: //With Description
82 // G4Decay Process has both 77 // G4Decay Process has both
83 // PostStepDoIt (for decay in flight) 78 // PostStepDoIt (for decay in flight)
84 // and 79 // and
85 // AtRestDoIt (for decay at rest) 80 // AtRestDoIt (for decay at rest)
86 81
87 virtual G4VParticleChange *PostStepDoIt( 82 virtual G4VParticleChange *PostStepDoIt(
88 const G4Track& aTrack, 83 const G4Track& aTrack,
89 const G4Step& aSt 84 const G4Step& aStep
90 ) override; << 85 );
91 86
92 virtual G4VParticleChange* AtRestDoIt( 87 virtual G4VParticleChange* AtRestDoIt(
93 const G4Track& aTrack, 88 const G4Track& aTrack,
94 const G4Step& aStep 89 const G4Step& aStep
95 ) override; << 90 );
96 91
97 virtual void BuildPhysicsTable(const G4Pa << 92 virtual void BuildPhysicsTable(const G4ParticleDefinition&);
98 // In G4Decay, thePhysicsTable stores val 93 // In G4Decay, thePhysicsTable stores values of
99 // beta * std::sqrt( 1 - beta*beta) 94 // beta * std::sqrt( 1 - beta*beta)
100 // as a function of normalized kinetic en 95 // as a function of normalized kinetic enregy (=Ekin/mass),
101 // becasuse this table is universal for a 96 // becasuse this table is universal for all particle types,
102 97
103 98
104 virtual G4bool IsApplicable(const G4Partic << 99 virtual G4bool IsApplicable(const G4ParticleDefinition&);
105 // returns "true" if the decay process can 100 // returns "true" if the decay process can be applied to
106 // the particle type. 101 // the particle type.
107 102
108 protected: // With Description 103 protected: // With Description
109 virtual G4VParticleChange* DecayIt( 104 virtual G4VParticleChange* DecayIt(
110 const G4Track& aTrack, 105 const G4Track& aTrack,
111 const G4Step& aStep 106 const G4Step& aStep
112 ); 107 );
113 // The DecayIt() method returns by pointer 108 // The DecayIt() method returns by pointer a particle-change object,
114 // which has information of daughter parti 109 // which has information of daughter particles.
115 110
116 // Set daughter polarization << 111 public:
117 // NO OPERATION in the base class of G4De <<
118 virtual void DaughterPolarization(const G4 <<
119 G4DecayProducts* products); <<
120 <<
121 public: <<
122 virtual G4double AtRestGetPhysicalInteract 112 virtual G4double AtRestGetPhysicalInteractionLength(
123 const G4Track& tr 113 const G4Track& track,
124 G4ForceCondition* 114 G4ForceCondition* condition
125 ) override; << 115 );
126 116
127 virtual G4double PostStepGetPhysicalIntera 117 virtual G4double PostStepGetPhysicalInteractionLength(
128 const G4Track& tr 118 const G4Track& track,
129 G4double previo 119 G4double previousStepSize,
130 G4ForceCondition* 120 G4ForceCondition* condition
131 ) override; << 121 );
132 122
133 protected: // With Description 123 protected: // With Description
134 // GetMeanFreePath returns ctau*beta*gamma 124 // GetMeanFreePath returns ctau*beta*gamma for decay in flight
135 // GetMeanLifeTime returns ctau for decay 125 // GetMeanLifeTime returns ctau for decay at rest
136 virtual G4double GetMeanFreePath(const G4T 126 virtual G4double GetMeanFreePath(const G4Track& aTrack,
137 G4double previ 127 G4double previousStepSize,
138 G4ForceCondition 128 G4ForceCondition* condition
139 ) override; << 129 );
140 130
141 virtual G4double GetMeanLifeTime(const G4T 131 virtual G4double GetMeanLifeTime(const G4Track& aTrack,
142 G4ForceCondition 132 G4ForceCondition* condition
143 ) override; << 133 );
144 134
145 public: //With Description 135 public: //With Description
146 virtual void StartTracking(G4Track*) over << 136 virtual void StartTracking();
147 virtual void EndTracking() override; << 137 virtual void EndTracking();
148 // inform Start/End of tracking for each 138 // inform Start/End of tracking for each track to the physics process
149 139
150 public: //With Description 140 public: //With Description
151 void SetExtDecayer(G4VExtDecayer*); 141 void SetExtDecayer(G4VExtDecayer*);
152 const G4VExtDecayer* GetExtDecayer() cons 142 const G4VExtDecayer* GetExtDecayer() const;
153 // Set/Get External Decayer 143 // Set/Get External Decayer
154 144
155 G4double GetRemainderLifeTime() const; 145 G4double GetRemainderLifeTime() const;
156 //Get Remainder of life time at rest decay 146 //Get Remainder of life time at rest decay
157 147
158 virtual void ProcessDescription(std::ostre << 148 public:
159 // << 149 void SetVerboseLevel(G4int value);
>> 150 G4int GetVerboseLevel() const;
160 151
161 protected: 152 protected:
162 G4int verboseLevel; 153 G4int verboseLevel;
163 // controle flag for output message 154 // controle flag for output message
164 // 0: Silent 155 // 0: Silent
165 // 1: Warning message 156 // 1: Warning message
166 // 2: More 157 // 2: More
167 158
168 protected: 159 protected:
169 // HighestValue. 160 // HighestValue.
170 const G4double HighestValue; 161 const G4double HighestValue;
171 162
172 // Remainder of life time at rest 163 // Remainder of life time at rest
173 G4double fRemainderLifeTim 164 G4double fRemainderLifeTime;
174 165
175 // ParticleChange for decay process 166 // ParticleChange for decay process
176 G4ParticleChangeForDecay fParticleChangeFo 167 G4ParticleChangeForDecay fParticleChangeForDecay;
177 168
178 // External Decayer 169 // External Decayer
179 G4VExtDecayer* pExtDecayer; 170 G4VExtDecayer* pExtDecayer;
180 }; 171 };
181 172
>> 173 inline
>> 174 void G4Decay::SetVerboseLevel(G4int value){ verboseLevel = value; }
>> 175
>> 176 inline
>> 177 G4int G4Decay::GetVerboseLevel() const { return verboseLevel; }
>> 178
182 inline 179 inline
183 G4VParticleChange* G4Decay::AtRestDoIt( 180 G4VParticleChange* G4Decay::AtRestDoIt(
184 const G4Track& aTrack, 181 const G4Track& aTrack,
185 const G4Step& aStep 182 const G4Step& aStep
186 ) 183 )
187 { 184 {
188 return DecayIt(aTrack, aStep); 185 return DecayIt(aTrack, aStep);
189 } 186 }
190 187
>> 188 inline
>> 189 G4VParticleChange* G4Decay::PostStepDoIt(
>> 190 const G4Track& aTrack,
>> 191 const G4Step& aStep
>> 192 )
>> 193 {
>> 194 return DecayIt(aTrack, aStep);
>> 195 }
>> 196
>> 197 inline
>> 198 void G4Decay::SetExtDecayer(G4VExtDecayer* val)
>> 199 {
>> 200 pExtDecayer = val;
>> 201 }
191 202
192 inline 203 inline
193 const G4VExtDecayer* G4Decay::GetExtDecayer() 204 const G4VExtDecayer* G4Decay::GetExtDecayer() const
194 { 205 {
195 return pExtDecayer; 206 return pExtDecayer;
196 } 207 }
197 208
198 inline 209 inline
199 G4double G4Decay::GetRemainderLifeTime() cons 210 G4double G4Decay::GetRemainderLifeTime() const
200 { 211 {
201 return fRemainderLifeTime; 212 return fRemainderLifeTime;
202 } 213 }
203 214
204 #endif 215 #endif
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