Geant4 Cross Reference

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Geant4/processes/electromagnetic/standard/src/G4hIonisation.cc

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Differences between /processes/electromagnetic/standard/src/G4hIonisation.cc (Version 11.3.0) and /processes/electromagnetic/standard/src/G4hIonisation.cc (Version 9.3.p2)


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 25 //                                                 25 //
                                                   >>  26 // $Id: G4hIonisation.cc,v 1.82 2009/02/20 12:06:37 vnivanch Exp $
                                                   >>  27 // GEANT4 tag $Name: geant4-09-03-patch-02 $
                                                   >>  28 //
 26 // -------------------------------------------     29 // -------------------------------------------------------------------
 27 //                                                 30 //
 28 // GEANT4 Class file                               31 // GEANT4 Class file
 29 //                                                 32 //
 30 //                                                 33 //
 31 // File name:     G4hIonisation                    34 // File name:     G4hIonisation
 32 //                                                 35 //
 33 // Author:        Laszlo Urban                     36 // Author:        Laszlo Urban
 34 //                                                 37 //
 35 // Creation date: 30.05.1997                       38 // Creation date: 30.05.1997
 36 //                                                 39 //
 37 // Modified by Laszlo Urban, Michel Maire and  <<  40 // Modifications:
                                                   >>  41 //
                                                   >>  42 // corrected by L.Urban on 24/09/97
                                                   >>  43 // several bugs corrected by L.Urban on 13/01/98
                                                   >>  44 // 07-04-98 remove 'tracking cut' of the ionizing particle, mma
                                                   >>  45 // 22-10-98 cleanup L.Urban
                                                   >>  46 // 02-02-99 bugs fixed , L.Urban
                                                   >>  47 // 29-07-99 correction in BuildLossTable for low energy, L.Urban
                                                   >>  48 // 10-02-00 modifications , new e.m. structure, L.Urban
                                                   >>  49 // 10-08-00 V.Ivanchenko change BuildLambdaTable, in order to
                                                   >>  50 //          simulate energy losses of ions; correction to
                                                   >>  51 //          cross section for particles with spin 1 is inserted as well
                                                   >>  52 // 28-05-01 V.Ivanchenko minor changes to provide ANSI -wall compilation
                                                   >>  53 // 10-08-01 new methods Store/Retrieve PhysicsTable (mma)
                                                   >>  54 // 14-08-01 new function ComputeRestrictedMeandEdx() + 'cleanup' (mma)
                                                   >>  55 // 29-08-01 PostStepDoIt: correction for spin 1/2 (instead of 1) (mma)
                                                   >>  56 // 17-09-01 migration of Materials to pure STL (mma)
                                                   >>  57 // 25-09-01 completion of RetrievePhysicsTable() (mma)
                                                   >>  58 // 29-10-01 all static functions no more inlined
                                                   >>  59 // 08-11-01 Charge renamed zparticle; added to the dedx
                                                   >>  60 // 27-03-02 Bug fix in scaling of lambda table (V.Ivanchenko)
                                                   >>  61 // 09-04-02 Update calculation of tables for GenericIons (V.Ivanchenko)
                                                   >>  62 // 30-04-02 V.Ivanchenko update to new design
                                                   >>  63 // 04-12-02 Add verbose level definition (VI)
                                                   >>  64 // 23-12-02 Change interface in order to move to cut per region (V.Ivanchenko)
                                                   >>  65 // 26-12-02 Secondary production moved to derived classes (V.Ivanchenko)
                                                   >>  66 // 13-02-03 SubCutoff regime is assigned to a region (V.Ivanchenko)
                                                   >>  67 // 23-05-03 Define default integral + BohrFluctuations (V.Ivanchenko)
                                                   >>  68 // 03-06-03 Fix initialisation problem for STD ionisation (V.Ivanchenko)
                                                   >>  69 // 04-08-03 Set integral=false to be default (V.Ivanchenko)
                                                   >>  70 // 08-08-03 STD substitute standard  (V.Ivanchenko)
                                                   >>  71 // 12-11-03 G4EnergyLossSTD -> G4EnergyLossProcess (V.Ivanchenko)
                                                   >>  72 // 27-05-04 Set integral to be a default regime (V.Ivanchenko) 
                                                   >>  73 // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko)
                                                   >>  74 // 24-03-05 Optimize internal interfaces (V.Ivantchenko)
                                                   >>  75 // 12-08-05 SetStepLimits(0.2, 0.1*mm) (mma)
                                                   >>  76 // 10-01-06 SetStepLimits -> SetStepFunction (V.Ivanchenko)
                                                   >>  77 // 26-05-06 scale negative particles from pi- and pbar,
                                                   >>  78 //          positive from pi+ and p (VI)
                                                   >>  79 // 14-01-07 use SetEmModel() and SetFluctModel() from G4VEnergyLossProcess (mma)
                                                   >>  80 // 12-09-08 Removed CorrectionsAlongStep (VI)
 38 //                                                 81 //
 39 // -------------------------------------------     82 // -------------------------------------------------------------------
 40 //                                                 83 //
 41 //....oooOO0OOooo........oooOO0OOooo........oo     84 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
 42 //....oooOO0OOooo........oooOO0OOooo........oo     85 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
 43                                                    86 
 44 #include "G4hIonisation.hh"                        87 #include "G4hIonisation.hh"
 45 #include "G4PhysicalConstants.hh"              << 
 46 #include "G4SystemOfUnits.hh"                  << 
 47 #include "G4Electron.hh"                           88 #include "G4Electron.hh"
 48 #include "G4Proton.hh"                             89 #include "G4Proton.hh"
 49 #include "G4AntiProton.hh"                         90 #include "G4AntiProton.hh"
 50 #include "G4BraggModel.hh"                         91 #include "G4BraggModel.hh"
 51 #include "G4BetheBlochModel.hh"                    92 #include "G4BetheBlochModel.hh"
 52 #include "G4EmStandUtil.hh"                    <<  93 #include "G4IonFluctuations.hh"
                                                   >>  94 #include "G4UniversalFluctuation.hh"
                                                   >>  95 #include "G4BohrFluctuations.hh"
                                                   >>  96 #include "G4UnitsTable.hh"
 53 #include "G4PionPlus.hh"                           97 #include "G4PionPlus.hh"
 54 #include "G4PionMinus.hh"                          98 #include "G4PionMinus.hh"
 55 #include "G4KaonPlus.hh"                           99 #include "G4KaonPlus.hh"
 56 #include "G4KaonMinus.hh"                         100 #include "G4KaonMinus.hh"
 57 #include "G4ICRU73QOModel.hh"                  << 
 58 #include "G4EmParameters.hh"                   << 
 59                                                   101 
 60 //....oooOO0OOooo........oooOO0OOooo........oo    102 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
 61                                                   103 
                                                   >> 104 using namespace std;
                                                   >> 105 
 62 G4hIonisation::G4hIonisation(const G4String& n    106 G4hIonisation::G4hIonisation(const G4String& name)
 63   : G4VEnergyLossProcess(name)                 << 107   : G4VEnergyLossProcess(name),
                                                   >> 108     isInitialised(false),
                                                   >> 109     nuclearStopping(true)
 64 {                                                 110 {
                                                   >> 111   //  SetStepFunction(0.2, 1.0*mm);
                                                   >> 112   //SetIntegral(true);
                                                   >> 113   //SetVerboseLevel(1);
 65   SetProcessSubType(fIonisation);                 114   SetProcessSubType(fIonisation);
 66   SetSecondaryParticle(G4Electron::Electron()) << 115   mass = 0.0;
 67   eth = 2*CLHEP::MeV;                          << 116   ratio = 0.0;
 68 }                                                 117 }
 69                                                   118 
 70 //....oooOO0OOooo........oooOO0OOooo........oo    119 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
 71                                                   120 
 72 G4bool G4hIonisation::IsApplicable(const G4Par << 121 G4hIonisation::~G4hIonisation()
                                                   >> 122 {}
                                                   >> 123 
                                                   >> 124 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
                                                   >> 125 
                                                   >> 126 G4bool G4hIonisation::IsApplicable(const G4ParticleDefinition& p)
 73 {                                                 127 {
 74   return true;                                 << 128   return (p.GetPDGCharge() != 0.0 && p.GetPDGMass() > 10.0*MeV &&
                                                   >> 129    !p.IsShortLived());
 75 }                                                 130 }
 76                                                   131 
 77 //....oooOO0OOooo........oooOO0OOooo........oo    132 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
 78                                                   133 
 79 G4double G4hIonisation::MinPrimaryEnergy(const    134 G4double G4hIonisation::MinPrimaryEnergy(const G4ParticleDefinition*,
 80            const G4Material*,                     135            const G4Material*,
 81            G4double cut)                          136            G4double cut)
 82 {                                                 137 {
 83   G4double x = 0.5*cut/electron_mass_c2;          138   G4double x = 0.5*cut/electron_mass_c2;
 84   G4double gam = x*ratio + std::sqrt((1. + x)* << 139   G4double g = x*ratio + std::sqrt((1. + x)*(1. + x*ratio*ratio));
 85   return mass*(gam - 1.0);                     << 140   return mass*(g - 1.0);
 86 }                                                 141 }
 87                                                   142 
 88 //....oooOO0OOooo........oooOO0OOooo........oo    143 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....  
 89                                                   144 
 90 void G4hIonisation::InitialiseEnergyLossProces    145 void G4hIonisation::InitialiseEnergyLossProcess(
 91         const G4ParticleDefinition* part,         146         const G4ParticleDefinition* part,
 92         const G4ParticleDefinition* bpart)        147         const G4ParticleDefinition* bpart)
 93 {                                                 148 {
 94   if(!isInitialised) {                            149   if(!isInitialised) {
 95                                                   150 
 96     const G4ParticleDefinition* theBaseParticl << 151     const G4ParticleDefinition* theBaseParticle = 0;
 97     G4String pname = part->GetParticleName();     152     G4String pname = part->GetParticleName();
 98     G4double q = part->GetPDGCharge();         << 
 99                                                << 
100     //G4cout << " G4hIonisation::InitialiseEne << 
101     //   << "  " << bpart << G4endl;           << 
102                                                   153 
103     // define base particle                    << 154     // standard base particles
104     if(part == bpart) {                        << 155     if(part == bpart || pname == "proton" ||
105       theBaseParticle = nullptr;               << 156        pname == "anti_proton" || 
106     } else if(nullptr != bpart) {              << 157        pname == "pi+" || pname == "pi-" || 
107       theBaseParticle = bpart;                 << 158        pname == "kaon+" || pname == "kaon-") 
                                                   >> 159       { 
                                                   >> 160   theBaseParticle = 0;
                                                   >> 161       }
                                                   >> 162     // select base particle 
                                                   >> 163     else if(bpart == 0) {
108                                                   164 
109     } else if(pname == "proton" || pname == "a << 165       if(part->GetPDGSpin() == 0.0)
110         pname == "pi+" || pname == "pi-" ||    << 166   if(part->GetPDGCharge() > 0.0 ) {
111         pname == "kaon+" || pname == "kaon-" | << 167     theBaseParticle = G4KaonPlus::KaonPlus();
112         pname == "GenericIon" || pname == "alp << 168   } else {
113       // no base particles                     << 169     theBaseParticle = G4KaonMinus::KaonMinus();
114       theBaseParticle = nullptr;               << 170   }
115                                                << 171       else if(part->GetPDGCharge() > 0.0) {
116     } else {                                   << 172   theBaseParticle = G4Proton::Proton();
117       // select base particle                  << 
118       if(part->GetPDGSpin() == 0.0) {          << 
119   if(q > 0.0) { theBaseParticle = G4KaonPlus:: << 
120   else { theBaseParticle = G4KaonMinus::KaonMi << 
121       } else {                                    173       } else {
122   if(q > 0.0) { theBaseParticle = G4Proton::Pr << 174   theBaseParticle = G4AntiProton::AntiProton();
123   else { theBaseParticle = G4AntiProton::AntiP << 
124       }                                           175       }
                                                   >> 176       // base particle defined by interface
                                                   >> 177     } else { 
                                                   >> 178       theBaseParticle = bpart;
125     }                                             179     }
126     SetBaseParticle(theBaseParticle);             180     SetBaseParticle(theBaseParticle);
                                                   >> 181     SetSecondaryParticle(G4Electron::Electron());
127                                                   182 
128     // model limit defined for protons         << 
129     mass  = part->GetPDGMass();                   183     mass  = part->GetPDGMass();
130     ratio = electron_mass_c2/mass;                184     ratio = electron_mass_c2/mass;
131     eth   = 2.0*MeV*mass/proton_mass_c2;       << 
132                                                   185 
133     G4EmParameters* param = G4EmParameters::In << 186     if(mass < 900.*MeV) nuclearStopping = false;
134     G4double emin = param->MinKinEnergy();     << 187 
135     G4double emax = param->MaxKinEnergy();     << 188     if (!EmModel(1)) SetEmModel(new G4BraggModel(),1);
136                                                << 189     EmModel(1)->SetLowEnergyLimit(MinKinEnergy());
137     // define model of energy loss fluctuation << 190 
138     if (nullptr == FluctModel()) {             << 191     // model limit defined for protons
139       G4bool ion = (pname == "GenericIon" || p << 192     eth = (EmModel(1)->HighEnergyLimit())*mass/proton_mass_c2;
140       SetFluctModel(G4EmStandUtil::ModelOfFluc << 193     EmModel(1)->SetHighEnergyLimit(eth);
141     }                                          << 194     AddEmModel(1, EmModel(1), new G4IonFluctuations());
                                                   >> 195 
                                                   >> 196     if (!FluctModel()) SetFluctModel(new G4UniversalFluctuation());
                                                   >> 197 
                                                   >> 198     if (!EmModel(2)) SetEmModel(new G4BetheBlochModel(),2);  
                                                   >> 199     EmModel(2)->SetLowEnergyLimit(eth);
                                                   >> 200     EmModel(2)->SetHighEnergyLimit(MaxKinEnergy());
                                                   >> 201     AddEmModel(2, EmModel(2), FluctModel());  
142                                                   202 
143     if (nullptr == EmModel(0)) {               << 
144       if(q > 0.0) { SetEmModel(new G4BraggMode << 
145       else        { SetEmModel(new G4ICRU73QOM << 
146     }                                          << 
147     // to compute ranges correctly we have to  << 
148     // model even if activation limit is high  << 
149     EmModel(0)->SetLowEnergyLimit(emin);       << 
150                                                << 
151     // high energy limit may be eth or DBL_MAX << 
152     G4double emax1 = (EmModel(0)->HighEnergyLi << 
153     EmModel(0)->SetHighEnergyLimit(emax1);     << 
154     AddEmModel(1, EmModel(0), FluctModel());   << 
155                                                << 
156     // second model is used if the first does  << 
157     if(emax1 < emax) {                         << 
158       if (nullptr == EmModel(1)) { SetEmModel( << 
159       EmModel(1)->SetLowEnergyLimit(emax1);    << 
160                                                << 
161       // for extremely heavy particles upper l << 
162       // should be increased                   << 
163       emax = std::max(emax, eth*10);           << 
164       EmModel(1)->SetHighEnergyLimit(emax);    << 
165       AddEmModel(2, EmModel(1), FluctModel()); << 
166     }                                          << 
167     isInitialised = true;                         203     isInitialised = true;
168   }                                               204   }
                                                   >> 205   EmModel(1)->ActivateNuclearStopping(nuclearStopping);
                                                   >> 206   EmModel(2)->ActivateNuclearStopping(nuclearStopping);
169 }                                                 207 }
170                                                   208 
171 //....oooOO0OOooo........oooOO0OOooo........oo    209 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
172                                                   210 
173 void G4hIonisation::ProcessDescription(std::os << 211 void G4hIonisation::PrintInfo()
174 {                                                 212 {
175   out << "  Hadron ionisation";                << 213   if(EmModel(1) && EmModel(2)) {
176   G4VEnergyLossProcess::ProcessDescription(out << 214     G4cout << "      NuclearStopping= " << nuclearStopping
                                                   >> 215      << G4endl;
                                                   >> 216   }
177 }                                                 217 }
178                                                   218 
179 //....oooOO0OOooo........oooOO0OOooo........oo << 219 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
180                                                   220