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1 // 1 //
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19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // 26 //
>> 27 // $Id: G4Decay.hh,v 1.15 2006/06/29 19:30:34 gunter Exp $
>> 28 // GEANT4 tag $Name: geant4-08-01-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 <<
49 <<
50 50
51 #ifndef G4Decay_h 51 #ifndef G4Decay_h
52 #define G4Decay_h 1 52 #define G4Decay_h 1
53 53
54 #include "G4ios.hh" 54 #include "G4ios.hh"
55 #include "globals.hh" 55 #include "globals.hh"
56 #include "G4VRestDiscreteProcess.hh" 56 #include "G4VRestDiscreteProcess.hh"
57 #include "G4ParticleChangeForDecay.hh" 57 #include "G4ParticleChangeForDecay.hh"
58 #include "G4DecayProcessType.hh" <<
59 <<
60 class G4VExtDecayer; 58 class G4VExtDecayer;
61 59
62 class G4Decay : public G4VRestDiscreteProcess 60 class G4Decay : public G4VRestDiscreteProcess
63 { 61 {
64 // Class Description 62 // Class Description
65 // This class is a decay process 63 // This class is a decay process
66 64
67 public: 65 public:
68 // Constructors 66 // Constructors
69 G4Decay(const G4String& processName ="Deca 67 G4Decay(const G4String& processName ="Decay");
70 68
71 // Destructor 69 // Destructor
72 virtual ~G4Decay(); 70 virtual ~G4Decay();
73 71
74 private: 72 private:
75 // copy constructor 73 // copy constructor
76 G4Decay(const G4Decay &right); 74 G4Decay(const G4Decay &right);
77 75
78 // Assignment Operation (generated) 76 // Assignment Operation (generated)
79 G4Decay & operator=(const G4Decay &right 77 G4Decay & operator=(const G4Decay &right);
80 78
81 public: //With Description 79 public: //With Description
82 // G4Decay Process has both 80 // G4Decay Process has both
83 // PostStepDoIt (for decay in flight) 81 // PostStepDoIt (for decay in flight)
84 // and 82 // and
85 // AtRestDoIt (for decay at rest) 83 // AtRestDoIt (for decay at rest)
86 84
87 virtual G4VParticleChange *PostStepDoIt( 85 virtual G4VParticleChange *PostStepDoIt(
88 const G4Track& aTrack, 86 const G4Track& aTrack,
89 const G4Step& aSt 87 const G4Step& aStep
90 ) override; << 88 );
91 89
92 virtual G4VParticleChange* AtRestDoIt( 90 virtual G4VParticleChange* AtRestDoIt(
93 const G4Track& aTrack, 91 const G4Track& aTrack,
94 const G4Step& aStep 92 const G4Step& aStep
95 ) override; << 93 );
96 94
97 virtual void BuildPhysicsTable(const G4Pa << 95 virtual void BuildPhysicsTable(const G4ParticleDefinition&);
98 // In G4Decay, thePhysicsTable stores val 96 // In G4Decay, thePhysicsTable stores values of
99 // beta * std::sqrt( 1 - beta*beta) 97 // beta * std::sqrt( 1 - beta*beta)
100 // as a function of normalized kinetic en 98 // as a function of normalized kinetic enregy (=Ekin/mass),
101 // becasuse this table is universal for a 99 // becasuse this table is universal for all particle types,
102 100
103 101
104 virtual G4bool IsApplicable(const G4Partic << 102 virtual G4bool IsApplicable(const G4ParticleDefinition&);
105 // returns "true" if the decay process can 103 // returns "true" if the decay process can be applied to
106 // the particle type. 104 // the particle type.
107 105
108 protected: // With Description 106 protected: // With Description
109 virtual G4VParticleChange* DecayIt( 107 virtual G4VParticleChange* DecayIt(
110 const G4Track& aTrack, 108 const G4Track& aTrack,
111 const G4Step& aStep 109 const G4Step& aStep
112 ); 110 );
113 // The DecayIt() method returns by pointer 111 // The DecayIt() method returns by pointer a particle-change object,
114 // which has information of daughter parti 112 // which has information of daughter particles.
115 113
116 // Set daughter polarization << 114 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 115 virtual G4double AtRestGetPhysicalInteractionLength(
123 const G4Track& tr 116 const G4Track& track,
124 G4ForceCondition* 117 G4ForceCondition* condition
125 ) override; << 118 );
126 119
127 virtual G4double PostStepGetPhysicalIntera 120 virtual G4double PostStepGetPhysicalInteractionLength(
128 const G4Track& tr 121 const G4Track& track,
129 G4double previo 122 G4double previousStepSize,
130 G4ForceCondition* 123 G4ForceCondition* condition
131 ) override; << 124 );
132 125
133 protected: // With Description 126 protected: // With Description
134 // GetMeanFreePath returns ctau*beta*gamma 127 // GetMeanFreePath returns ctau*beta*gamma for decay in flight
135 // GetMeanLifeTime returns ctau for decay 128 // GetMeanLifeTime returns ctau for decay at rest
136 virtual G4double GetMeanFreePath(const G4T 129 virtual G4double GetMeanFreePath(const G4Track& aTrack,
137 G4double previ 130 G4double previousStepSize,
138 G4ForceCondition 131 G4ForceCondition* condition
139 ) override; << 132 );
140 133
141 virtual G4double GetMeanLifeTime(const G4T 134 virtual G4double GetMeanLifeTime(const G4Track& aTrack,
142 G4ForceCondition 135 G4ForceCondition* condition
143 ) override; << 136 );
144 137
145 public: //With Description 138 public: //With Description
146 virtual void StartTracking(G4Track*) over << 139 virtual void StartTracking(G4Track*);
147 virtual void EndTracking() override; << 140 virtual void EndTracking();
148 // inform Start/End of tracking for each 141 // inform Start/End of tracking for each track to the physics process
149 142
150 public: //With Description 143 public: //With Description
151 void SetExtDecayer(G4VExtDecayer*); 144 void SetExtDecayer(G4VExtDecayer*);
152 const G4VExtDecayer* GetExtDecayer() cons 145 const G4VExtDecayer* GetExtDecayer() const;
153 // Set/Get External Decayer 146 // Set/Get External Decayer
154 147
155 G4double GetRemainderLifeTime() const; 148 G4double GetRemainderLifeTime() const;
156 //Get Remainder of life time at rest decay 149 //Get Remainder of life time at rest decay
157 150
158 virtual void ProcessDescription(std::ostre << 151 public:
159 // << 152 void SetVerboseLevel(G4int value);
>> 153 G4int GetVerboseLevel() const;
160 154
161 protected: 155 protected:
162 G4int verboseLevel; 156 G4int verboseLevel;
163 // controle flag for output message 157 // controle flag for output message
164 // 0: Silent 158 // 0: Silent
165 // 1: Warning message 159 // 1: Warning message
166 // 2: More 160 // 2: More
167 161
168 protected: 162 protected:
169 // HighestValue. 163 // HighestValue.
170 const G4double HighestValue; 164 const G4double HighestValue;
171 165
172 // Remainder of life time at rest 166 // Remainder of life time at rest
173 G4double fRemainderLifeTim 167 G4double fRemainderLifeTime;
174 168
175 // ParticleChange for decay process 169 // ParticleChange for decay process
176 G4ParticleChangeForDecay fParticleChangeFo 170 G4ParticleChangeForDecay fParticleChangeForDecay;
177 171
178 // External Decayer 172 // External Decayer
179 G4VExtDecayer* pExtDecayer; 173 G4VExtDecayer* pExtDecayer;
180 }; 174 };
181 175
>> 176 inline
>> 177 void G4Decay::SetVerboseLevel(G4int value){ verboseLevel = value; }
>> 178
>> 179 inline
>> 180 G4int G4Decay::GetVerboseLevel() const { return verboseLevel; }
>> 181
182 inline 182 inline
183 G4VParticleChange* G4Decay::AtRestDoIt( 183 G4VParticleChange* G4Decay::AtRestDoIt(
184 const G4Track& aTrack, 184 const G4Track& aTrack,
185 const G4Step& aStep 185 const G4Step& aStep
186 ) 186 )
187 { 187 {
188 return DecayIt(aTrack, aStep); 188 return DecayIt(aTrack, aStep);
189 } 189 }
190 190
>> 191 inline
>> 192 G4VParticleChange* G4Decay::PostStepDoIt(
>> 193 const G4Track& aTrack,
>> 194 const G4Step& aStep
>> 195 )
>> 196 {
>> 197 return DecayIt(aTrack, aStep);
>> 198 }
>> 199
>> 200 inline
>> 201 void G4Decay::SetExtDecayer(G4VExtDecayer* val)
>> 202 {
>> 203 pExtDecayer = val;
>> 204 }
191 205
192 inline 206 inline
193 const G4VExtDecayer* G4Decay::GetExtDecayer() 207 const G4VExtDecayer* G4Decay::GetExtDecayer() const
194 { 208 {
195 return pExtDecayer; 209 return pExtDecayer;
196 } 210 }
197 211
198 inline 212 inline
199 G4double G4Decay::GetRemainderLifeTime() cons 213 G4double G4Decay::GetRemainderLifeTime() const
200 { 214 {
201 return fRemainderLifeTime; 215 return fRemainderLifeTime;
202 } 216 }
203 217
204 #endif 218 #endif
205 219
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