Geant4  10.01.p01
G4AdjointSimManager.hh
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26 // $Id: G4AdjointSimManager.hh 81773 2014-06-05 08:35:38Z gcosmo $
27 //
29 // Class Name: G4AdjointSimManager.hh
30 // Author: L. Desorgher
31 // Organisation: SpaceIT GmbH
32 // Contract: ESA contract 21435/08/NL/AT
33 // Customer: ESA/ESTEC
35 //
36 // CHANGE HISTORY
37 // --------------
38 // ChangeHistory:
39 // -15-01-2007 creation by L. Desorgher
40 // -March 2008 Redesigned as a non RunManager. L. Desorgher
41 // -01-11-2009 Add the possibility to use user defined run, event, tracking, stepping,
42 // and stacking actions during the adjoint tracking phase. L. Desorgher
43 //
44 //
45 //
46 //-------------------------------------------------------------
47 // Documentation:
48 // This class represents the Manager of an adjoint/reverse MC simulation.
49 // An adjoint run is divided in a serie of alternative adjoint and forward tracking
50 // of adjoint and normal particles.
51 //
52 // Reverse tracking phase:
53 // -----------------------
54 // An adjoint particle of a given type (adjoint_e-, adjoint_gamma,...) is first generated on the so called adjoint source
55 // with a random energy (1/E distribution) and direction. The adjoint source is the
56 // external surface of a user defined volume or of a user defined sphere. The adjoint
57 // source should contain one or several sensitive volumes and should be small
58 // compared to the entire geometry.
59 // The user can set the min and max energy of the adjoint source. After its
60 // generation the adjoint primary particle is tracked
61 // bacward in the geometry till a user defined external surface (spherical or boundary of a volume)
62 // or is killed before if it reaches a user defined upper energy limit that represents
63 // the maximum energy of the external source. During the reverse tracking, reverse
64 // processes take place where the adjoint particle being tracked can be either scattered
65 // or transformed in another type of adjoint paticle. During the reverse tracking the
66 // G4SimulationManager replaces the user defined Primary, Run, ... actions, by its own actions.
67 //
68 // Forward tracking phase
69 // -----------------------
70 // When an adjoint particle reaches the external surface its weight,type, position,
71 // and directions are registered and a normal primary particle with a type equivalent to the last generated primary adjoint is
72 // generated with the same energy, position but opposite direction and is tracked normally in the sensitive region as in a fwd MC simulation.
73 // During this forward tracking phase the
74 // event, stacking, stepping, tracking actions defined by the user for its general fwd application are used. By this clear separation between
75 // adjoint and fwd tracking phases , the code of the user developed for a fwd simulation should be only slightly modified to adapt it for an adjoint
76 // simulation. Indeed the computation of the signal is done by the same actions or classes that the one used in the fwd simulation mode.
77 //
78 // Modification to brought in a existing G4 application to use the ReverseMC method
79 // -------------------------------
80 // In order to be able to use the ReverseMC method in his simulation, the user should modify its code as such:
81 // 1) Adapt its physics list to use ReverseProcesses for adjoint particles. An example of such physics list is provided in an extended
82 // example.
83 // 2) Create an instance of G4AdjointSimManager somewhere in the main code.
84 // 3) Modify the analysis part of the code to normalise the signal computed during the fwd phase to the weight of the last adjoint particle
85 // that reaches the external surface. This is done by using the following method of G4AdjointSimManager.
86 //
87 // G4int GetIDOfLastAdjParticleReachingExtSource()
88 // G4ThreeVector GetPositionAtEndOfLastAdjointTrack(){ return last_pos;}
89 // G4ThreeVector GetDirectionAtEndOfLastAdjointTrack(){ return last_direction;}
90 // G4double GetEkinAtEndOfLastAdjointTrack(){ return last_ekin;}
91 // G4double GetEkinNucAtEndOfLastAdjointTrack(){ return last_ekin_nuc;}
92 // G4double GetWeightAtEndOfLastAdjointTrack(){return last_weight;}
93 // G4double GetCosthAtEndOfLastAdjointTrack(){return last_cos_th;}
94 // G4String GetFwdParticleNameAtEndOfLastAdjointTrack(){return last_fwd_part_name;}
95 // G4int GetFwdParticlePDGEncodingAtEndOfLastAdjointTrack(){return last_fwd_part_PDGEncoding;}
96 // G4int GetFwdParticleIndexAtEndOfLastAdjointTrack().
97 //
98 // In orther to have a code working for both forward and adjoint simulation mode, the extra code needed in user actions for the adjoint
99 // simulation mode can be seperated to the code needed only for the normal forward simulation by using the following method
100 //
101 // G4bool GetAdjointSimMode() that return true if an adjoint simulation is running and false if not!
102 //
103 // Example of modification in the analysis part of the code:
104 // -------------------------------------------------------------
105 // Let say that in the forward simulation a G4 application computes the energy deposited in a volume.
106 // The user wants to normalise its results for an external isotropic source of e- with differential spectrum given by f(E).
107 // A possible modification of the code where the deposited energy Edep during an event is registered would be the following
108 //
109 // G4AdjointSimManager* theAdjSimManager = G4AdjointSimManager::GetInstance();
110 // if (theAdjSimManager->GetAdjointSimMode()) {
111 // //code of the user that should be consider only for forwrad simulation
112 // G4double normalised_edep = 0.;
113 // if (theAdjSimManager->GetFwdParticleNameAtEndOfLastAdjointTrack() == "e-"){
114 // G4double ekin_prim = theAdjSimManager->GetEkinAtEndOfLastAdjointTrack();
115 // G4double weight_prim = theAdjSimManager->GetWeightAtEndOfLastAdjointTrack();
116 // normalised_edep = weight_prim*f(ekin_prim);
117 // }
118 // //then follow the code where normalised_edep is printed, or registered or whatever ....
119 // }
120 //
121 // else { //code of the user that should be consider only for forward simulation
122 // }
123 // Note that in this example a normalisation to only primary e- with only one spectrum f(E) is considered. The example code could be easily
124 // adapted for a normalisatin to several spectra and several type of primary particles in the same simulation.
125 //
126 
127 #ifndef G4AdjointSimManager_h
128 #define G4AdjointSimManager_h 1
129 #include "globals.hh"
130 #include "G4ThreeVector.hh"
131 #include <vector>
132 #include "G4UserRunAction.hh"
133 
134 class G4UserEventAction;
139 class G4AdjointRunAction;
142 class G4AdjointEventAction;
147 class G4PhysicsLogVector;
148 class G4Run;
149 
151 {
152  public:
153 
155 
156  public: //public methods
157 
158  virtual void BeginOfRunAction(const G4Run* aRun);
159  virtual void EndOfRunAction(const G4Run* aRun);
160  void RunAdjointSimulation(G4int nb_evt);
161 
163 
164  void SetAdjointTrackingMode(G4bool aBool);
165  G4bool GetAdjointTrackingMode(); //true if an adjoint track is being processed
166  inline G4bool GetAdjointSimMode(){return adjoint_sim_mode;} //true if an adjoint simulation is running
167 
171  //to continue here
182 
183  std::vector<G4ParticleDefinition*>* GetListOfPrimaryFwdParticles();
185 
190 
191  //Definition of adjoint source
192  //----------------------------
193 
200  void ConsiderParticleAsPrimary(const G4String& particle_name);
201  void NeglectParticleAsPrimary(const G4String& particle_name);
202  void SetPrimaryIon(G4ParticleDefinition* adjointIon, G4ParticleDefinition* fwdIon);
203  const G4String& GetPrimaryIonName();
204 
208 
209  //Definition of user actions for the adjoint tracking phase
210  //----------------------------
214  void SetAdjointRunAction(G4UserRunAction* anAction);
215 
216  //Set methods for user run actions
217  //--------------------------------
220 
221 
222  //Set nb of primary fwd gamma
223  //---------------------------
225 
226  //Convergence test
227  //-----------------------
228  /*
229  void RegisterSignalForConvergenceTest(G4double aSignal);
230  void DefineExponentialPrimarySpectrumForConvergenceTest(G4ParticleDefinition* aPartDef, G4double E0);
231  void DefinePowerLawPrimarySpectrumForConvergenceTest(G4ParticleDefinition* aPartDef, G4double alpha);
232 
233  */
234 
235  private:
236 
238 
239 
240  private: // methods
241 
242  void SetRestOfAdjointActions();
244  void SetAdjointActions();
245  void ResetRestOfUserActions();
247  void ResetUserActions();
248  void DefineUserActions();
249  public:
252 
253  private: //constructor and destructor
254 
257 
258  private ://attributes
259 
260  //Messenger
261  //----------
263 
264  //user defined actions for the normal fwd simulation. Taken from the G4RunManager
265  //-------------------------------------------------
273  bool use_user_StackingAction; //only for fwd part of the adjoint simulation
275 
276  //action for adjoint simulation
277  //-----------------------------
284 
285  //adjoint mode
286  //-------------
289 
290  //adjoint particle information on the external surface
291  //-----------------------------
294  G4double last_ekin,last_ekin_nuc; //last_ekin_nuc=last_ekin/nuc, nuc is 1 if not a nucleus
301 
304 
305  //Adjoint source
306  //--------------
310 
311  //Weight Analysis
312  //----------
313  /*G4PhysicsLogVector* electron_last_weight_vector;
314  G4PhysicsLogVector* proton_last_weight_vector;
315  G4PhysicsLogVector* gamma_last_weight_vector;*/
316 
318 
319 /* For the future
320  //Convergence test
321  //----------------
322 
323  G4double normalised_signal;
324  G4double error_signal;
325  G4bool convergence_test_is_used;
326  G4bool power_law_spectrum_for_convergence_test; // true PowerLaw, ;
327  G4ParticleDefinition* the_par_def_for_convergence_test;
328 */
329 
330 };
331 
332 #endif
333 
static G4AdjointSimManager * GetInstance()
static G4ThreadLocal G4AdjointSimManager * instance
void UseUserTrackingActionInFwdTrackingPhase(G4bool aBool)
std::vector< G4ParticleDefinition * > * GetListOfPrimaryFwdParticles()
G4bool GetDidAdjParticleReachTheExtSource()
G4int GetIDOfLastAdjParticleReachingExtSource()
void SetAdjointSourceEmax(G4double Emax)
CLHEP::Hep3Vector G4ThreeVector
G4UserStackingAction * fUserStackingAction
void SetAdjointStackingAction(G4UserStackingAction *anAction)
G4AdjointSteppingAction * theAdjointSteppingAction
G4int GetFwdParticlePDGEncodingAtEndOfLastAdjointTrack()
G4bool DefineSphericalAdjointSourceWithCentreAtTheCentreOfAVolume(G4double radius, const G4String &volume_name)
G4AdjointTrackingAction * theAdjointTrackingAction
G4bool DefineSphericalAdjointSource(G4double radius, G4ThreeVector pos)
G4VUserPrimaryGeneratorAction * fUserPrimaryGeneratorAction
#define G4ThreadLocal
Definition: tls.hh:89
int G4int
Definition: G4Types.hh:78
virtual void EndOfRunAction(const G4Run *aRun)
void SetAdjointSourceEmin(G4double Emin)
G4UserRunAction * fUserRunAction
G4double GetEkinAtEndOfLastAdjointTrack()
G4UserEventAction * fUserEventAction
void SetAdjointTrackingMode(G4bool aBool)
G4UserTrackingAction * fUserTrackingAction
virtual void BeginOfRunAction(const G4Run *aRun)
G4bool DefineAdjointSourceOnTheExtSurfaceOfAVolume(const G4String &volume_name)
bool G4bool
Definition: G4Types.hh:79
void SetNbOfPrimaryFwdGammasPerEvent(G4int)
G4UserRunAction * theAdjointRunAction
Definition: G4Run.hh:46
void RunAdjointSimulation(G4int nb_evt)
G4double GetCosthAtEndOfLastAdjointTrack()
const G4int n
G4UserEventAction * theAdjointEventAction
G4AdjointStackingAction * theAdjointStackingAction
G4bool DefineSphericalExtSourceWithCentreAtTheCentreOfAVolume(G4double radius, const G4String &volume_name)
const G4String & GetFwdParticleNameAtEndOfLastAdjointTrack()
void SetPrimaryIon(G4ParticleDefinition *adjointIon, G4ParticleDefinition *fwdIon)
const G4String & GetPrimaryIonName()
G4AdjointSimMessenger * theMessenger
G4ThreeVector GetDirectionAtEndOfLastAdjointTrack()
G4bool DefineSphericalExtSource(G4double radius, G4ThreeVector pos)
void SetAdjointRunAction(G4UserRunAction *anAction)
void SetAdjointEventAction(G4UserEventAction *anAction)
G4UserSteppingAction * fUserSteppingAction
G4double GetEkinNucAtEndOfLastAdjointTrack()
void ConsiderParticleAsPrimary(const G4String &particle_name)
G4double GetWeightAtEndOfLastAdjointTrack()
void SetNormalisationMode(G4int n)
static const G4double Emin
void RegisterAdjointPrimaryWeight(G4double aWeight)
G4bool DefineExtSourceOnTheExtSurfaceOfAVolume(const G4String &volume_name)
static const G4double Emax
void UseUserStackingActionInFwdTrackingPhase(G4bool aBool)
double G4double
Definition: G4Types.hh:76
G4ThreeVector GetPositionAtEndOfLastAdjointTrack()
void SetExtSourceEmax(G4double Emax)
void SetAdjointPrimaryRunAndStackingActions()
G4AdjointPrimaryGeneratorAction * theAdjointPrimaryGeneratorAction
G4int ID_of_last_particle_that_reach_the_ext_source
void SetAdjointSteppingAction(G4UserSteppingAction *anAction)
G4int GetFwdParticleIndexAtEndOfLastAdjointTrack()
static const G4double pos
void NeglectParticleAsPrimary(const G4String &particle_name)
void ResetUserPrimaryRunAndStackingActions()