| Geant4 Cross Reference |
1 // 1 //
2 // ******************************************* 2 // ********************************************************************
3 // * License and Disclaimer 3 // * License and Disclaimer *
4 // * 4 // * *
5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided 6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License 7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. 9 // * include a list of copyright holders. *
10 // * 10 // * *
11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assum 14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file 15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. *
17 // * 17 // * *
18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. *
24 // ******************************************* 24 // ********************************************************************
25 // 25 //
>> 26 // $Id: G4hhIonisation.cc,v 1.6 2007/05/22 17:37:30 vnivanch Exp $
>> 27 // GEANT4 tag $Name: geant4-09-00-patch-01 $
26 // 28 //
27 // ------------------------------------------- 29 // -------------------------------------------------------------------
28 // 30 //
29 // GEANT4 Class file 31 // GEANT4 Class file
30 // 32 //
31 // 33 //
32 // File name: G4hhIonisation 34 // File name: G4hhIonisation
33 // 35 //
34 // Author: Vladimir Ivanchenko 36 // Author: Vladimir Ivanchenko
35 // 37 //
36 // Creation date: 30.09.2005 38 // Creation date: 30.09.2005
37 // 39 //
38 // Modifications: 40 // Modifications:
39 // 10-01-06 SetStepLimits -> SetStepFunction ( 41 // 10-01-06 SetStepLimits -> SetStepFunction (V.Ivantchenko)
40 // 27-10-06 Add maxKinEnergy (V.Ivantchenko) 42 // 27-10-06 Add maxKinEnergy (V.Ivantchenko)
41 // 43 //
42 // 44 //
43 // ------------------------------------------- 45 // -------------------------------------------------------------------
44 // 46 //
45 //....oooOO0OOooo........oooOO0OOooo........oo 47 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
46 //....oooOO0OOooo........oooOO0OOooo........oo 48 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
47 49
48 #include "G4hhIonisation.hh" 50 #include "G4hhIonisation.hh"
49 #include "G4PhysicalConstants.hh" <<
50 #include "G4SystemOfUnits.hh" <<
51 #include "G4BraggNoDeltaModel.hh" 51 #include "G4BraggNoDeltaModel.hh"
52 #include "G4BetheBlochNoDeltaModel.hh" 52 #include "G4BetheBlochNoDeltaModel.hh"
53 #include "G4ICRU73NoDeltaModel.hh" <<
54 #include "G4UniversalFluctuation.hh" 53 #include "G4UniversalFluctuation.hh"
55 #include "G4IonFluctuations.hh" << 54 #include "G4BohrFluctuations.hh"
56 #include "G4UnitsTable.hh" 55 #include "G4UnitsTable.hh"
57 #include "G4Electron.hh" 56 #include "G4Electron.hh"
58 #include "G4EmParameters.hh" <<
59 57
60 //....oooOO0OOooo........oooOO0OOooo........oo 58 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
61 59
62 G4hhIonisation::G4hhIonisation(const G4String& 60 G4hhIonisation::G4hhIonisation(const G4String& name)
63 : G4VEnergyLossProcess(name) << 61 : G4VEnergyLossProcess(name),
>> 62 theParticle(0),
>> 63 theBaseParticle(0),
>> 64 isInitialised(false)
64 { 65 {
>> 66 minKinEnergy = 0.1*keV;
>> 67 maxKinEnergy = 100.*TeV;
>> 68 SetDEDXBinning(120);
>> 69 SetMinKinEnergy(minKinEnergy);
>> 70 SetMaxKinEnergy(maxKinEnergy);
>> 71 SetStepFunction(0.1, 0.1*mm);
65 SetVerboseLevel(1); 72 SetVerboseLevel(1);
66 SetProcessSubType(fIonisation); << 73 mass = 0.0;
67 SetSecondaryParticle(G4Electron::Electron()) << 74 ratio = 0.0;
68 } 75 }
69 76
70 //....oooOO0OOooo........oooOO0OOooo........oo 77 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
71 78
72 G4hhIonisation::~G4hhIonisation() 79 G4hhIonisation::~G4hhIonisation()
73 {} 80 {}
74 81
75 //....oooOO0OOooo........oooOO0OOooo........oo 82 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
76 83
77 G4bool G4hhIonisation::IsApplicable(const G4Pa << 84 void G4hhIonisation::InitialiseEnergyLossProcess(const G4ParticleDefinition* part,
>> 85 const G4ParticleDefinition* bpart)
78 { 86 {
79 return (p.GetPDGCharge() != 0.0); << 87 if(isInitialised) return;
80 } <<
81 <<
82 //....oooOO0OOooo........oooOO0OOooo........oo <<
83 <<
84 G4double G4hhIonisation::MinPrimaryEnergy(cons <<
85 const G4Material*, <<
86 G4double cut) <<
87 { <<
88 G4double x = 0.5*cut/electron_mass_c2; <<
89 G4double y = electron_mass_c2/mass; <<
90 G4double gam = x*y + std::sqrt((1. + x)*(1. <<
91 return mass*(gam - 1.0); <<
92 } <<
93 <<
94 //....oooOO0OOooo........oooOO0OOooo........oo <<
95 <<
96 void G4hhIonisation::InitialiseEnergyLossProce <<
97 const G4ParticleDefinition* part, <<
98 const G4ParticleDefinition* bpart) <<
99 { <<
100 if(isInitialised) { return; } <<
101 88
102 theParticle = part; 89 theParticle = part;
103 if(nullptr != bpart) { << 90 if(bpart) G4cout << "G4hhIonisation::InitialiseEnergyLossProcess WARNING: no "
104 G4cout << "G4hhIonisation::InitialiseEnerg << 91 << "base particle should be defined for the process "
105 << "base particle should be defined for t << 92 << GetProcessName() << G4endl;
106 << GetProcessName() << G4endl; << 93
107 } << 94 SetBaseParticle(0);
>> 95 SetSecondaryParticle(G4Electron::Electron());
108 mass = theParticle->GetPDGMass(); 96 mass = theParticle->GetPDGMass();
109 ratio = electron_mass_c2/mass; 97 ratio = electron_mass_c2/mass;
110 G4double eth = 2*CLHEP::MeV*mass/proton_mass << 98 eth = 2.0*MeV*mass/proton_mass_c2;
111 flucModel = new G4IonFluctuations(); << 99 flucModel = new G4BohrFluctuations();
>> 100
>> 101 G4int nm = 1;
112 102
113 G4EmParameters* param = G4EmParameters::Inst << 103 if(eth > minKinEnergy) {
114 G4double emin = std::min(param->MinKinEnergy << 104 G4VEmModel* em = new G4BraggNoDeltaModel();
115 G4double emax = std::max(param->MaxKinEnergy << 105 em->SetLowEnergyLimit(minKinEnergy);
116 << 106 em->SetHighEnergyLimit(eth);
117 SetMinKinEnergy(emin); << 107 AddEmModel(nm, em, flucModel);
118 SetMaxKinEnergy(emax); << 108 nm++;
119 G4int bin = G4lrint(param->NumberOfBinsPerDe <<
120 SetDEDXBinning(bin); <<
121 <<
122 G4VEmModel* em = EmModel(0); <<
123 if (nullptr == em) { <<
124 if(part->GetPDGCharge() > 0.0) { em = new <<
125 else { em = new G4ICRU73NoDeltaModel(); } <<
126 } 109 }
127 em->SetLowEnergyLimit(emin); <<
128 em->SetHighEnergyLimit(eth); <<
129 AddEmModel(1, em, flucModel); <<
130 <<
131 em = EmModel(1); <<
132 if(nullptr == em) { em = new G4BetheBlochNoD <<
133 em->SetLowEnergyLimit(eth); <<
134 em->SetHighEnergyLimit(emax); <<
135 AddEmModel(1, em, flucModel); <<
136 110
137 if(verboseLevel>1) { << 111 if(eth < maxKinEnergy) {
138 G4cout << "G4hhIonisation is initialised" << 112 G4VEmModel* em1 = new G4BetheBlochNoDeltaModel();
>> 113 em1->SetLowEnergyLimit(std::max(eth,minKinEnergy));
>> 114 em1->SetHighEnergyLimit(maxKinEnergy);
>> 115 AddEmModel(nm, em1, flucModel);
139 } 116 }
>> 117
>> 118 if(verboseLevel>0)
>> 119 G4cout << "G4hhIonisation is initialised: Nmodels= " << nm << G4endl;
>> 120
140 isInitialised = true; 121 isInitialised = true;
141 } 122 }
142 123
143 //....oooOO0OOooo........oooOO0OOooo........oo 124 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
144 125
145 void G4hhIonisation::ProcessDescription(std::o << 126 void G4hhIonisation::PrintInfo()
146 { 127 {
147 out << "G4hhIonisation: no delta rays" << G4 << 128 G4cout << " Delta-ray will not be produced; "
148 G4VEnergyLossProcess::ProcessDescription(out << 129 << "Bether-Bloch model for E > " << std::max(eth,minKinEnergy)
>> 130 << G4endl;
>> 131 if(eth > minKinEnergy) G4cout
>> 132 << " ICRU49 parametrisation scaled from protons below.";
>> 133 G4cout << G4endl;
149 } 134 }
150 135
151 //....oooOO0OOooo........oooOO0OOooo........oo 136 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
152 137