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25 // 25 //
26 // G4ParticleChange 26 // G4ParticleChange
27 // 27 //
28 // Class description: 28 // Class description:
29 // 29 //
30 // Concrete class for ParticleChange containin 30 // Concrete class for ParticleChange containing the results after
31 // invocation of a physics process. 31 // invocation of a physics process.
32 // This includes final states of parent partic 32 // This includes final states of parent particle (momentum, energy,
33 // etc) and secondary particles generated by t 33 // etc) and secondary particles generated by the interaction.
34 // The tracking assumes that all the values of 34 // The tracking assumes that all the values of energy and momentum
35 // are in global reference system, therefore a 35 // are in global reference system, therefore all the needed Lorentz
36 // transformations must have been already comp 36 // transformations must have been already computed when filling the
37 // data-members of this class. 37 // data-members of this class.
38 // 38 //
39 // IMPORTANT NOTE: Despite the name, what this 39 // IMPORTANT NOTE: Despite the name, what this class stores/returns
40 // through its methods, are the "FINAL" values 40 // through its methods, are the "FINAL" values of the Position,
41 // Momentum, etc. 41 // Momentum, etc.
42 42
43 // Author: Hisaya Kurashige, 23 March 1998 43 // Author: Hisaya Kurashige, 23 March 1998
44 // ------------------------------------------- 44 // --------------------------------------------------------------------
45 #ifndef G4ParticleChange_hh 45 #ifndef G4ParticleChange_hh
46 #define G4ParticleChange_hh 1 46 #define G4ParticleChange_hh 1
47 47
48 #include "globals.hh" 48 #include "globals.hh"
49 #include "G4ios.hh" 49 #include "G4ios.hh"
50 #include "G4ThreeVector.hh" 50 #include "G4ThreeVector.hh"
>> 51 #include "G4ThreeVector.hh"
51 #include "G4VParticleChange.hh" 52 #include "G4VParticleChange.hh"
52 53
53 class G4DynamicParticle; 54 class G4DynamicParticle;
54 55
55 class G4ParticleChange : public G4VParticleCha 56 class G4ParticleChange : public G4VParticleChange
56 { 57 {
57 public: 58 public:
58 59
59 G4ParticleChange(); 60 G4ParticleChange();
60 // Default constructor 61 // Default constructor
61 62
62 ~G4ParticleChange() override = default; << 63 virtual ~G4ParticleChange();
63 // Destructor 64 // Destructor
64 65
65 G4ParticleChange(const G4ParticleChange& r << 66 G4bool operator==(const G4ParticleChange& right) const;
66 G4ParticleChange& operator=(const G4Partic << 67 G4bool operator!=(const G4ParticleChange& right) const;
>> 68 // Equality operators
67 69
68 // --- the following methods are for updatin 70 // --- the following methods are for updating G4Step -----
69 // Return the pointer to G4Step after updati 71 // Return the pointer to G4Step after updating the Step information
70 // by using final state of the track given b 72 // by using final state of the track given by a physics process
71 73
72 G4Step* UpdateStepForAlongStep(G4Step* Ste << 74 virtual G4Step* UpdateStepForAlongStep(G4Step* Step);
73 // A physics process gives the final sta 75 // A physics process gives the final state of the particle
74 // relative to the initial state at the 76 // relative to the initial state at the beginning of the Step,
75 // i.e., based on information of G4Track 77 // i.e., based on information of G4Track (or equivalently
76 // the PreStepPoint). 78 // the PreStepPoint).
77 // In this method, the differences (delt 79 // In this method, the differences (delta) between these two states
78 // are calculated, and are accumulated i 80 // are calculated, and are accumulated in PostStepPoint.
79 // Take note that the return type of Get 81 // Take note that the return type of GetMomentumChange() is a
80 // pointer to G4ParticleMomentum. Also i 82 // pointer to G4ParticleMomentum. Also it is a normalized
81 // momentum vector 83 // momentum vector
82 84
83 G4Step* UpdateStepForAtRest(G4Step* Step) << 85 virtual G4Step* UpdateStepForAtRest(G4Step* Step);
84 G4Step* UpdateStepForPostStep(G4Step* Step << 86 virtual G4Step* UpdateStepForPostStep(G4Step* Step);
85 // A physics process gives the final sta 87 // A physics process gives the final state of the particle
86 // based on information of G4Track (or e 88 // based on information of G4Track (or equivalently the PreStepPoint)
87 89
88 void Initialize(const G4Track&) override; << 90 virtual void Initialize(const G4Track&);
89 // Initialize all propoerties by using G 91 // Initialize all propoerties by using G4Track information
90 92
91 // --- methods to keep information of the fi 93 // --- methods to keep information of the final state ---
92 // 94 //
93 // The ProposeXXX methods store (and return 95 // The ProposeXXX methods store (and return in GetXXX methods)
94 // the "FINAL" values of the Position, Mome 96 // the "FINAL" values of the Position, Momentum, etc.
95 97
96 inline const G4ThreeVector* GetMomentumDir << 98 const G4ThreeVector* GetMomentumDirection() const;
97 inline void ProposeMomentumDirection(G4dou << 99 void ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz);
98 inline void ProposeMomentumDirection(const << 100 void ProposeMomentumDirection(const G4ThreeVector& Pfinal);
99 // Get/Propose the MomentumDirection vec 101 // Get/Propose the MomentumDirection vector: it is the final momentum
100 // direction 102 // direction
101 103
102 inline const G4ThreeVector* GetPolarizatio << 104 const G4ThreeVector* GetPolarization() const;
103 inline void ProposePolarization(G4double P << 105 void ProposePolarization(G4double Px, G4double Py, G4double Pz);
104 inline void ProposePolarization(const G4Th << 106 void ProposePolarization(const G4ThreeVector& finalPoralization);
105 // Get/Propose the final Polarization ve 107 // Get/Propose the final Polarization vector
106 108
107 inline G4double GetEnergy() const; << 109 G4double GetEnergy() const;
108 inline void ProposeEnergy(G4double finalEn << 110 void ProposeEnergy(G4double finalEnergy);
109 // Get/Propose the final kinetic energy 111 // Get/Propose the final kinetic energy of the current particle
110 112
111 inline G4double GetVelocity() const; << 113 G4double GetVelocity() const;
112 inline void ProposeVelocity(G4double final << 114 void ProposeVelocity(G4double finalVelocity);
113 // Get/Propose the final velocity of the 115 // Get/Propose the final velocity of the current particle
114 116
115 inline G4double GetProperTime() const; << 117 G4double GetProperTime() const;
116 inline void ProposeProperTime(G4double fin << 118 void ProposeProperTime(G4double finalProperTime);
117 // Get/Propose the final ProperTime 119 // Get/Propose the final ProperTime
118 120
119 inline const G4ThreeVector* GetPosition() << 121 const G4ThreeVector* GetPosition() const;
120 inline void ProposePosition(G4double x, G4 << 122 void ProposePosition(G4double x, G4double y, G4double z);
121 inline void ProposePosition(const G4ThreeV << 123 void ProposePosition(const G4ThreeVector& finalPosition);
122 // Get/Propose the final position of the 124 // Get/Propose the final position of the current particle
123 125
124 inline void ProposeGlobalTime(G4double t); << 126 void ProposeGlobalTime(G4double t);
125 inline void ProposeLocalTime(G4double t); << 127 void ProposeLocalTime(G4double t);
126 // Get/Propose the final global/local Ti 128 // Get/Propose the final global/local Time.
127 // NOTE: DO NOT INVOKE both methods in a 129 // NOTE: DO NOT INVOKE both methods in a step
128 // Each method affects both local 130 // Each method affects both local and global time
129 131
130 inline G4double GetGlobalTime(G4double tim << 132 G4double GetGlobalTime(G4double timeDelay = 0.0) const;
131 inline G4double GetLocalTime(G4double time << 133 G4double GetLocalTime(G4double timeDelay = 0.0) const;
132 // Convert the time delay to the glocbal 134 // Convert the time delay to the glocbal/local time.
133 // Can get the final global/local time w 135 // Can get the final global/local time without argument
134 136
135 inline G4double GetMass() const; << 137 G4double GetMass() const;
136 inline void ProposeMass(G4double finalMass << 138 void ProposeMass(G4double finalMass);
137 // Get/Propose the final dynamical mass 139 // Get/Propose the final dynamical mass in G4DynamicParticle
138 140
139 inline G4double GetCharge() const; << 141 G4double GetCharge() const;
140 inline void ProposeCharge(G4double finalCh << 142 void ProposeCharge(G4double finalCharge);
141 // Get/Propose the final dynamical charg 143 // Get/Propose the final dynamical charge in G4DynamicParticle
142 144
143 inline G4double GetMagneticMoment() const; << 145 G4double GetMagneticMoment() const;
144 inline void ProposeMagneticMoment(G4double << 146 void ProposeMagneticMoment(G4double finalMagneticMoment);
145 // Get/Propose the final MagneticMoment 147 // Get/Propose the final MagneticMoment in G4DynamicParticle
146 148
147 inline G4ThreeVector << 149 G4ThreeVector GetGlobalPosition(const G4ThreeVector& displacement) const;
148 GetGlobalPosition(const G4ThreeVector& dis <<
149 // Convert the position displacement to 150 // Convert the position displacement to the global position
150 151
151 inline G4ThreeVector CalcMomentum(G4double << 152 G4ThreeVector CalcMomentum(G4double energy, G4ThreeVector direction,
152 G4double << 153 G4double mass) const;
153 // Calculate momentum by using Energy, M 154 // Calculate momentum by using Energy, Momentum Direction, and Mass
154 155
155 // --- methods for adding secondaries --- 156 // --- methods for adding secondaries ---
156 157
157 void AddSecondary(G4Track* aSecondary); 158 void AddSecondary(G4Track* aSecondary);
158 // Add a secondary particle to theListOf 159 // Add a secondary particle to theListOfSecondaries
159 160
160 void AddSecondary(G4DynamicParticle* aSeco 161 void AddSecondary(G4DynamicParticle* aSecondary,
161 G4bool IsGoodForTracking 162 G4bool IsGoodForTracking = false);
162 // Add a secondary particle to theListOf 163 // Add a secondary particle to theListOfSecondaries.
163 // Position and time are same as thePosi 164 // Position and time are same as thePositionChange and theTimeChange
164 165
165 void AddSecondary(G4DynamicParticle* aSeco 166 void AddSecondary(G4DynamicParticle* aSecondary, G4ThreeVector position,
166 G4bool IsGoodForTracking 167 G4bool IsGoodForTracking = false);
167 // Add a secondary particle to theListOf 168 // Add a secondary particle to theListOfSecondaries.
168 // Global time are same as theTimeChange 169 // Global time are same as theTimeChange and theTimeChange
169 170
170 void AddSecondary(G4DynamicParticle* aSeco 171 void AddSecondary(G4DynamicParticle* aSecondary, G4double time,
171 G4bool IsGoodForTracking 172 G4bool IsGoodForTracking = false);
172 // Add a secondary particle to theListOf 173 // Add a secondary particle to theListOfSecondaries.
173 // Position and are same as thePositionC 174 // Position and are same as thePositionChange
174 175
175 // --- Dump and debug methods --- 176 // --- Dump and debug methods ---
176 177
177 void DumpInfo() const override; << 178 virtual void DumpInfo() const;
>> 179
>> 180 virtual G4bool CheckIt(const G4Track&);
178 181
179 protected: 182 protected:
180 183
>> 184 G4ParticleChange(const G4ParticleChange& right);
>> 185 G4ParticleChange& operator=(const G4ParticleChange& right);
>> 186 // Hidden copy constructor and assignment operator
>> 187
181 G4Step* UpdateStepInfo(G4Step* Step); 188 G4Step* UpdateStepInfo(G4Step* Step);
182 // Update the G4Step specific attributes 189 // Update the G4Step specific attributes
183 // (i.e. SteppingControl, LocalEnergyDep 190 // (i.e. SteppingControl, LocalEnergyDeposit, and TrueStepLength)
184 191
185 G4ThreeVector theMomentumDirectionChange; 192 G4ThreeVector theMomentumDirectionChange;
186 // It is the vector containing the final 193 // It is the vector containing the final momentum direction
187 // after the invoked process. The applic 194 // after the invoked process. The application of the change
188 // of the momentum direction of the part 195 // of the momentum direction of the particle is not done here.
189 // The responsibility to apply the chang 196 // The responsibility to apply the change is up to the entity
190 // which invoked the process 197 // which invoked the process
191 198
192 G4ThreeVector thePolarizationChange; 199 G4ThreeVector thePolarizationChange;
193 // The changed (final) polarization of a 200 // The changed (final) polarization of a given track
194 201
195 G4double theEnergyChange = 0.0; 202 G4double theEnergyChange = 0.0;
196 // The final kinetic energy of the curre 203 // The final kinetic energy of the current track
197 204
198 G4double theVelocityChange = 0.0; 205 G4double theVelocityChange = 0.0;
199 G4bool isVelocityChanged = false; 206 G4bool isVelocityChanged = false;
200 // The final velocity of the current tra 207 // The final velocity of the current track
201 208
202 G4ThreeVector thePositionChange; 209 G4ThreeVector thePositionChange;
203 // The changed (final) position of a giv 210 // The changed (final) position of a given track
204 211
205 G4double theGlobalTime0 = 0.0; 212 G4double theGlobalTime0 = 0.0;
206 // The global time at Initial 213 // The global time at Initial
207 G4double theLocalTime0 = 0.0; 214 G4double theLocalTime0 = 0.0;
208 // The local time at Initial 215 // The local time at Initial
209 216
210 G4double theTimeChange = 0.0; 217 G4double theTimeChange = 0.0;
211 // The change of local time of a given p 218 // The change of local time of a given particle
212 219
213 G4double theProperTimeChange = 0.0; 220 G4double theProperTimeChange = 0.0;
214 // The changed (final) proper time of a 221 // The changed (final) proper time of a given track
215 222
216 G4double theMassChange = 0.0; 223 G4double theMassChange = 0.0;
217 // The Changed (final) mass of a given t 224 // The Changed (final) mass of a given track
218 225
219 G4double theChargeChange = 0.0; 226 G4double theChargeChange = 0.0;
220 // The Changed (final) charge of a given 227 // The Changed (final) charge of a given track
221 228
222 G4double theMagneticMomentChange = 0.0; 229 G4double theMagneticMomentChange = 0.0;
223 // The Changed (final) MagneticMoment of 230 // The Changed (final) MagneticMoment of a given track
>> 231
>> 232 const G4Track* theCurrentTrack = nullptr;
224 }; 233 };
225 234
226 #include "G4ParticleChange.icc" 235 #include "G4ParticleChange.icc"
227 236
228 #endif 237 #endif
229 238