| 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: G4mplIonisation.cc 66996 2013-01-29 14:50:52Z gcosmo $
26 // 27 //
27 // ------------------------------------------- 28 // -------------------------------------------------------------------
28 // 29 //
29 // GEANT4 Class file 30 // GEANT4 Class file
30 // 31 //
31 // 32 //
32 // File name: G4mplIonisation 33 // File name: G4mplIonisation
33 // 34 //
34 // Author: Vladimir Ivanchenko 35 // Author: Vladimir Ivanchenko
35 // 36 //
36 // Creation date: 25.08.2005 37 // Creation date: 25.08.2005
37 // 38 //
38 // Modifications: 39 // Modifications:
39 // 40 //
40 // 41 //
41 // ------------------------------------------- 42 // -------------------------------------------------------------------
42 // 43 //
43 //....oooOO0OOooo........oooOO0OOooo........oo 44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
44 //....oooOO0OOooo........oooOO0OOooo........oo 45 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
45 46
46 #include "G4mplIonisation.hh" 47 #include "G4mplIonisation.hh"
47 #include "G4PhysicalConstants.hh" 48 #include "G4PhysicalConstants.hh"
48 #include "G4SystemOfUnits.hh" 49 #include "G4SystemOfUnits.hh"
49 #include "G4Electron.hh" 50 #include "G4Electron.hh"
50 #include "G4mplIonisationModel.hh" 51 #include "G4mplIonisationModel.hh"
51 #include "G4mplIonisationWithDeltaModel.hh" 52 #include "G4mplIonisationWithDeltaModel.hh"
52 #include "G4EmParameters.hh" << 53 #include "G4LossTableManager.hh"
53 54
54 //....oooOO0OOooo........oooOO0OOooo........oo 55 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
55 56
>> 57 using namespace std;
>> 58
56 G4mplIonisation::G4mplIonisation(G4double mCha 59 G4mplIonisation::G4mplIonisation(G4double mCharge, const G4String& name)
57 : G4VEnergyLossProcess(name), 60 : G4VEnergyLossProcess(name),
58 magneticCharge(mCharge) << 61 magneticCharge(mCharge),
>> 62 isInitialised(false)
59 { 63 {
60 // By default classical magnetic charge is u 64 // By default classical magnetic charge is used
61 if(magneticCharge == 0.0) { magneticCharge = << 65 if(magneticCharge == 0.0) { magneticCharge = eplus*0.5/fine_structure_const; }
62 66
63 SetVerboseLevel(0); 67 SetVerboseLevel(0);
64 SetProcessSubType(fIonisation); 68 SetProcessSubType(fIonisation);
>> 69 SetStepFunction(0.2, 1*mm);
65 SetSecondaryParticle(G4Electron::Electron()) 70 SetSecondaryParticle(G4Electron::Electron());
66 } 71 }
67 72
68 //....oooOO0OOooo........oooOO0OOooo........oo 73 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
69 74
70 G4mplIonisation::~G4mplIonisation() 75 G4mplIonisation::~G4mplIonisation()
71 {} 76 {}
72 77
73 //....oooOO0OOooo........oooOO0OOooo........oo 78 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
74 79
75 G4bool G4mplIonisation::IsApplicable(const G4P 80 G4bool G4mplIonisation::IsApplicable(const G4ParticleDefinition&)
76 { 81 {
77 return true; 82 return true;
78 } 83 }
79 84
80 //....oooOO0OOooo........oooOO0OOooo........oo 85 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
81 86
82 G4double G4mplIonisation::MinPrimaryEnergy(con <<
83 con <<
84 G4d <<
85 { <<
86 G4double x = 0.5*cut/electron_mass_c2; <<
87 G4double mass = mpl->GetPDGMass(); <<
88 G4double ratio = electron_mass_c2/mass; <<
89 G4double gam = x*ratio + std::sqrt((1. + x <<
90 return mass*(gam - 1.0); <<
91 } <<
92 <<
93 //....oooOO0OOooo........oooOO0OOooo........oo <<
94 <<
95 void G4mplIonisation::InitialiseEnergyLossProc 87 void G4mplIonisation::InitialiseEnergyLossProcess(const G4ParticleDefinition* p,
96 << 88 const G4ParticleDefinition*)
97 { 89 {
98 if(isInitialised) { return; } 90 if(isInitialised) { return; }
99 91
>> 92 SetBaseParticle(0);
>> 93
100 // monopole model is responsible both for en 94 // monopole model is responsible both for energy loss and fluctuations
101 G4mplIonisationWithDeltaModel* ion = 95 G4mplIonisationWithDeltaModel* ion =
102 new G4mplIonisationWithDeltaModel(magnetic 96 new G4mplIonisationWithDeltaModel(magneticCharge,"PAI");
103 ion->SetParticle(p); 97 ion->SetParticle(p);
104 98
105 // define size of dedx and range tables 99 // define size of dedx and range tables
106 G4EmParameters* param = G4EmParameters::Inst << 100 G4double emin = std::min(MinKinEnergy(),ion->LowEnergyLimit());
107 G4double emin = std::min(param->MinKinEnerg << 101 G4double emax = std::max(MaxKinEnergy(),ion->HighEnergyLimit());
108 G4double emax = std::max(param->MaxKinEnerg << 102 G4int bin = G4lrint(G4LossTableManager::Instance()->GetNumberOfBinsPerDecade()
109 G4int bin = G4lrint(param->NumberOfBinsPerDe << 103 *std::log10(emax/emin));
110 ion->SetLowEnergyLimit(emin); 104 ion->SetLowEnergyLimit(emin);
111 ion->SetHighEnergyLimit(emax); 105 ion->SetHighEnergyLimit(emax);
112 SetMinKinEnergy(emin); 106 SetMinKinEnergy(emin);
113 SetMaxKinEnergy(emax); 107 SetMaxKinEnergy(emax);
114 SetDEDXBinning(bin); 108 SetDEDXBinning(bin);
115 109
116 SetEmModel(ion); <<
117 AddEmModel(1,ion,ion); 110 AddEmModel(1,ion,ion);
118 111
119 isInitialised = true; 112 isInitialised = true;
120 } 113 }
121 114
122 //....oooOO0OOooo........oooOO0OOooo........oo 115 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
123 116
124 void G4mplIonisation::ProcessDescription(std:: << 117 void G4mplIonisation::PrintInfo()
125 { 118 {
126 out << "Magnetic monopole ionisation" << G4e << 119 G4cout << " No delta-electron production, only dE/dx"
127 G4VEnergyLossProcess::ProcessDescription(out << 120 << G4endl;
128 } 121 }
129 122
130 //....oooOO0OOooo........oooOO0OOooo........oo 123 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
131 <<
132 124