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IonPhysics.cc
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1 // $Id: $
3 // //
4 // File: IonPhysics.cc //
5 // Description: Ion hadronic physics constructor for EICPhysicsList //
6 // //
7 // Author: Dennis H. Wright (SLAC) //
8 // Date: 6 July 2018 //
9 // //
11 
12 
13 #include "IonPhysics.hh"
14 
15 #include <Geant4/G4ProcessManager.hh>
16 #include <Geant4/G4HadronElasticProcess.hh>
17 #include <Geant4/G4HadronInelasticProcess.hh>
18 
19 #include <Geant4/G4TheoFSGenerator.hh>
20 #include <Geant4/G4FTFModel.hh>
21 #include <Geant4/G4ExcitedStringDecay.hh>
22 #include <Geant4/G4LundStringFragmentation.hh>
23 #include <Geant4/G4GeneratorPrecompoundInterface.hh>
24 #include <Geant4/G4QMDReaction.hh>
25 #include <Geant4/G4HadronicInteractionRegistry.hh>
26 #include <Geant4/G4PreCompoundModel.hh>
27 #include <Geant4/G4BinaryLightIonReaction.hh>
28 #include <Geant4/G4HadronElastic.hh>
29 #include <Geant4/G4NuclNuclDiffuseElastic.hh>
30 
31 #include <Geant4/G4CrossSectionElastic.hh>
32 #include <Geant4/G4CrossSectionInelastic.hh>
33 #include <Geant4/G4ComponentGGNuclNuclXsc.hh>
34 #include <Geant4/G4SystemOfUnits.hh>
35 
36 
37 IonPhysics::IonPhysics():
38  ftfp(nullptr),
39  stringModel(nullptr),
40  stringDecay(nullptr),
41  fragModel(nullptr),
42  preCompoundModel(nullptr),
43  theGGNuclNuclXS(nullptr),
44  ionGGXS(nullptr)
45 {}
46 
47 
48 IonPhysics::~IonPhysics()
49 {
50  delete stringDecay;
51  delete stringModel;
52  delete fragModel;
53  delete preCompoundModel;
54 
55  delete theGGNuclNuclXS;
56  delete ionGGXS;
57 }
58 
59 
60 void IonPhysics::ConstructParticle()
61 {}
62 
63 
64 void IonPhysics::ConstructProcess()
65 {
66  G4ProcessManager* procMan = 0;
67 
68  // Elastic model for generic ions (z > 2)
69  G4NuclNuclDiffuseElastic* ionElastic = new G4NuclNuclDiffuseElastic;
70  ionElastic->SetMinEnergy(0.0);
71 
72  // FTFP ==>> eventually replace this with new class FTFPInterface
73  ftfp = new G4TheoFSGenerator("FTFP");
74  stringModel = new G4FTFModel;
75  stringDecay =
76  new G4ExcitedStringDecay(fragModel = new G4LundStringFragmentation);
77  stringModel->SetFragmentationModel(stringDecay);
78  preCompoundModel = new G4GeneratorPrecompoundInterface();
79 
80  ftfp->SetHighEnergyGenerator(stringModel);
81  ftfp->SetTransport(preCompoundModel);
82  ftfp->SetMinEnergy(10.01*GeV);
83  ftfp->SetMaxEnergy(1.0*TeV);
84 
85  // QMD model
86  G4QMDReaction* qmd = new G4QMDReaction;
87  qmd->SetMinEnergy(100.0*MeV);
88  qmd->SetMaxEnergy(10.0*GeV);
89 
90  // BIC ion model
91  G4HadronicInteraction* p =
92  G4HadronicInteractionRegistry::Instance()->FindModel("PRECO");
93  G4PreCompoundModel* thePreCompound = static_cast<G4PreCompoundModel*>(p);
94  if(!thePreCompound) { thePreCompound = new G4PreCompoundModel; }
95 
96  G4BinaryLightIonReaction* ionBC = new G4BinaryLightIonReaction(thePreCompound);
97  ionBC->SetMinEnergy(0.0*MeV);
98  ionBC->SetMaxEnergy(110.0*MeV);
99 
100  // Elastic cross section set
101  ionGGXS = new G4ComponentGGNuclNuclXsc;
102  G4VCrossSectionDataSet* ionElasticXS = new G4CrossSectionElastic(ionGGXS);
103  ionElasticXS->SetMinKinEnergy(0.0);
104 
105  // Inelastic cross section set
106  theGGNuclNuclXS = new G4ComponentGGNuclNuclXsc();
107  G4VCrossSectionDataSet* nuclNuclXS =
108  new G4CrossSectionInelastic(theGGNuclNuclXS);
109 
111  // Deuteron //
113 
114  procMan = G4Deuteron::Deuteron()->GetProcessManager();
115 
116  // elastic
117  // no model available
118 
119  // inelastic
120  G4HadronInelasticProcess* deutProcInel =
121  new G4HadronInelasticProcess("DeuteronInelProcess", G4Deuteron::Deuteron() );
122  deutProcInel->RegisterMe(ionBC);
123  deutProcInel->RegisterMe(qmd);
124  deutProcInel->RegisterMe(ftfp);
125  deutProcInel->AddDataSet(nuclNuclXS);
126  procMan->AddDiscreteProcess(deutProcInel);
127 
129  // Triton //
131 
132  procMan = G4Triton::Triton()->GetProcessManager();
133 
134  // elastic
135  // no model available
136 
137  // inelastic
138  G4HadronInelasticProcess* tritProcInel =
139  new G4HadronInelasticProcess("TritonInelProcess", G4Triton::Triton() );
140  tritProcInel->RegisterMe(ionBC);
141  tritProcInel->RegisterMe(qmd);
142  tritProcInel->RegisterMe(ftfp);
143  tritProcInel->AddDataSet(nuclNuclXS);
144  procMan->AddDiscreteProcess(tritProcInel);
145 
147  // He3 //
149 
150  procMan = G4He3::He3()->GetProcessManager();
151 
152  // elastic
153  // no model available
154 
155  // inelastic
156  G4HadronInelasticProcess* he3ProcInel =
157  new G4HadronInelasticProcess("He3InelProcess", G4He3::He3() );
158  he3ProcInel->RegisterMe(ionBC);
159  he3ProcInel->RegisterMe(qmd);
160  he3ProcInel->RegisterMe(ftfp);
161  he3ProcInel->AddDataSet(nuclNuclXS);
162  procMan->AddDiscreteProcess(he3ProcInel);
163 
165  // Alpha //
167 
168  procMan = G4Alpha::Alpha()->GetProcessManager();
169 
170  // elastic
171  // no model available
172 
173  // inelastic
174  G4HadronInelasticProcess* alphProcInel =
175  new G4HadronInelasticProcess("AlphaInelProcess", G4Alpha::Alpha() );
176  alphProcInel->RegisterMe(ionBC);
177  alphProcInel->RegisterMe(qmd);
178  alphProcInel->RegisterMe(ftfp);
179  alphProcInel->AddDataSet(nuclNuclXS);
180  procMan->AddDiscreteProcess(alphProcInel);
181 
183  // Generic ion //
185 
186  procMan = G4GenericIon::GenericIon()->GetProcessManager();
187 
188  // elastic
189  G4HadronElasticProcess* ionProcEl = new G4HadronElasticProcess;
190  ionProcEl->RegisterMe(ionElastic);
191  ionProcEl->AddDataSet(ionElasticXS);
192  procMan->AddDiscreteProcess(ionProcEl);
193 
194  // inelastic
195  G4HadronInelasticProcess* genIonProcInel =
196  new G4HadronInelasticProcess("IonInelProcess", G4GenericIon::GenericIon() );
197  genIonProcInel->RegisterMe(ionBC);
198  genIonProcInel->RegisterMe(qmd);
199  genIonProcInel->RegisterMe(ftfp);
200  genIonProcInel->AddDataSet(nuclNuclXS);
201  procMan->AddDiscreteProcess(genIonProcInel);
202 
203 }
204