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Geant4/examples/extended/biasing/GB05/src/GB05BOptrSplitAndKillByCrossSection.cc

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Diff markup

Differences between /examples/extended/biasing/GB05/src/GB05BOptrSplitAndKillByCrossSection.cc (Version 11.3.0) and /examples/extended/biasing/GB05/src/GB05BOptrSplitAndKillByCrossSection.cc (Version 8.0.p1)


  1 //                                                  1 
  2 // *******************************************    
  3 // * License and Disclaimer                       
  4 // *                                              
  5 // * The  Geant4 software  is  copyright of th    
  6 // * the Geant4 Collaboration.  It is provided    
  7 // * conditions of the Geant4 Software License    
  8 // * LICENSE and available at  http://cern.ch/    
  9 // * include a list of copyright holders.         
 10 // *                                              
 11 // * Neither the authors of this software syst    
 12 // * institutes,nor the agencies providing fin    
 13 // * work  make  any representation or  warran    
 14 // * regarding  this  software system or assum    
 15 // * use.  Please see the license in the file     
 16 // * for the full disclaimer and the limitatio    
 17 // *                                              
 18 // * This  code  implementation is the result     
 19 // * technical work of the GEANT4 collaboratio    
 20 // * By using,  copying,  modifying or  distri    
 21 // * any work based  on the software)  you  ag    
 22 // * use  in  resulting  scientific  publicati    
 23 // * acceptance of all terms of the Geant4 Sof    
 24 // *******************************************    
 25 //                                                
 26 //                                                
 27 /// \file GB05BOptrSplitAndKillByCrossSection.    
 28 /// \brief Implementation of the GB05BOptrSpli    
 29                                                   
 30 #include "GB05BOptrSplitAndKillByCrossSection.    
 31                                                   
 32 #include "GB05BOptnSplitAndKillByCrossSection.    
 33                                                   
 34 #include "G4BiasingProcessInterface.hh"           
 35 #include "G4ParticleDefinition.hh"                
 36 #include "G4ParticleTable.hh"                     
 37 #include "G4VProcess.hh"                          
 38                                                   
 39 //....oooOO0OOooo........oooOO0OOooo........oo    
 40                                                   
 41 GB05BOptrSplitAndKillByCrossSection::GB05BOptr    
 42                                                   
 43   : G4VBiasingOperator(name), fSetup(true)        
 44 {                                                 
 45   fParticleToBias = G4ParticleTable::GetPartic    
 46                                                   
 47   if (fParticleToBias == 0) {                     
 48     G4ExceptionDescription ed;                    
 49     ed << "Particle `" << particleName << "' n    
 50     G4Exception("GB05BOptrSplitAndKillByCrossS    
 51   }                                               
 52                                                   
 53   fSplitAndKillByCrossSection =                   
 54     new GB05BOptnSplitAndKillByCrossSection("s    
 55 }                                                 
 56                                                   
 57 //....oooOO0OOooo........oooOO0OOooo........oo    
 58                                                   
 59 GB05BOptrSplitAndKillByCrossSection::~GB05BOpt    
 60 {                                                 
 61   delete fSplitAndKillByCrossSection;             
 62 }                                                 
 63                                                   
 64 //....oooOO0OOooo........oooOO0OOooo........oo    
 65                                                   
 66 void GB05BOptrSplitAndKillByCrossSection::Star    
 67 {                                                 
 68   // ---------------                              
 69   // -- Setup stage:                              
 70   // ---------------                              
 71   // -- Start by collecting the pointer of the    
 72   // -- considered for the splitting by cross-    
 73   // -- this also verifies that these physics     
 74   // -- under control of a G4BiasingProcessInt    
 75   if (fSetup) {                                   
 76     const G4ProcessManager* processManager = f    
 77     const G4BiasingProcessSharedData* sharedDa    
 78       G4BiasingProcessInterface::GetSharedData    
 79     if (sharedData) {                             
 80       for (size_t i = 0; i < fProcessesToEquip    
 81         G4bool processFound(false);               
 82         for (size_t j = 0; j < (sharedData->Ge    
 83           const G4BiasingProcessInterface* wra    
 84             (sharedData->GetPhysicsBiasingProc    
 85           if (fProcessesToEquipoise[i] == wrap    
 86             fProcesses.push_back(wrapperProces    
 87             processFound = true;                  
 88             break;                                
 89           }                                       
 90         }                                         
 91         if (!processFound) {                      
 92           G4String particleName = "(unknown)";    
 93           if (fParticleToBias != nullptr) {       
 94             particleName = fParticleToBias->Ge    
 95           }                                       
 96           G4ExceptionDescription ed;              
 97           ed << "Process `" << fProcessesToEqu    
 98              << particleName << "'" << G4endl;    
 99           G4Exception("GB05BOptrSplitAndKillBy    
100                       JustWarning, ed);           
101         }                                         
102       }                                           
103     }                                             
104     fSetup = false;                               
105   }                                               
106                                                   
107   if (fProcessesToEquipoise.size() == 0 || fPr    
108     G4ExceptionDescription ed;                    
109     ed << "No processes to counterbalance for     
110        << "Biasing will do nothing." << G4endl    
111     G4Exception("GB05BOptrSplitAndKillByCrossS    
112   }                                               
113 }                                                 
114                                                   
115 //....oooOO0OOooo........oooOO0OOooo........oo    
116                                                   
117 G4VBiasingOperation* GB05BOptrSplitAndKillByCr    
118   const G4Track* track, const G4BiasingProcess    
119 {                                                 
120   // -----------------------------------------    
121   // -- Check if current particle type is the     
122   // -----------------------------------------    
123   if (track->GetDefinition() != fParticleToBia    
124                                                   
125   // -----------------------------------------    
126   // -- Compute the total cross-section for th    
127   // -- considered.                               
128   // -- These physics processes have been upda    
129   // -- state by their related wrapper G4Biasi    
130   // -- the cross-sections/mean free pathes ar    
131   // -----------------------------------------    
132   G4double totalCrossSection(0.0);                
133   for (size_t i = 0; i < fProcesses.size(); i+    
134     G4double interactionLength = fProcesses[i]    
135     if (interactionLength < DBL_MAX / 10.) tot    
136   }                                               
137   if (totalCrossSection < DBL_MIN) return 0;      
138                                                   
139   G4double totalInteractionLength = 1. / total    
140                                                   
141   // -----------------------------------------    
142   // -- Passes the updated "absorption" cross-    
143   // -- to the biasing operation, and returns     
144   // -----------------------------------------    
145   fSplitAndKillByCrossSection->SetInteractionL    
146                                                   
147   return fSplitAndKillByCrossSection;             
148 }                                                 
149                                                   
150 void GB05BOptrSplitAndKillByCrossSection::AddP    
151 {                                                 
152   fProcessesToEquipoise.push_back(processName)    
153 }                                                 
154