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25 //
26 /// \file electromagnetic/TestEm6/src/RunAction.cc
27 /// \brief Implementation of the RunAction class
28 //
29 //
30 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32
33 #include "RunAction.hh"
34
35 #include "G4AnnihiToMuPair.hh"
36 #include "G4EmCalculator.hh"
37 #include "G4MuonMinus.hh"
38 #include "G4ParticleDefinition.hh"
39 #include "G4ParticleTable.hh"
40 #include "G4PhysicalConstants.hh"
41 #include "G4Positron.hh"
42 #include "G4Run.hh"
43 #include "G4RunManager.hh"
44 #include "G4SystemOfUnits.hh"
45 #include "G4eBremsstrahlung.hh"
46 #include "G4eeToHadrons.hh"
47 #include "G4eeToHadronsModel.hh"
48 #include "Randomize.hh"
49
50 #include <sstream>
51
52 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
53
54 RunAction::RunAction(DetectorConstruction* det)
55 : G4UserRunAction(), fDetector(det), fProcCounter(0), fAnalysis(0), fMat(0)
56 {
57 fMinE = 40 * GeV;
58 fMaxE = 10000 * GeV;
59 fnBin = 10000;
60 }
61
62 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
63
64 RunAction::~RunAction() {}
65
66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
67
68 void RunAction::BeginOfRunAction(const G4Run* aRun)
69 {
70 G4cout << "### Run " << aRun->GetRunID() << " start." << G4endl;
71
72 // get material
73 //
74 fMat = fDetector->GetMaterial();
75 G4cout << "###RunAction::BeginOfRunAction Material:" << fMat->GetName() << G4endl;
76
77 fProcCounter = new ProcessesCount;
78
79 fAnalysis = G4AnalysisManager::Instance();
80 fAnalysis->SetDefaultFileType("root");
81
82 // Open an output file
83 //
84 std::stringstream tmp;
85 tmp << "testem6_" << aRun->GetRunID();
86 G4String fileName = tmp.str();
87 fAnalysis->OpenFile(fileName);
88 fAnalysis->SetVerboseLevel(2);
89 fAnalysis->SetActivation(true);
90
91 // Creating histograms 1,2,3,4,5,6
92 //
93 fAnalysis->SetFirstHistoId(1);
94 fAnalysis->CreateH1("h1", "1/(1+(theta+[g]+)**2)", 100, 0, 1.);
95 fAnalysis->CreateH1("h2", "log10(theta+ [g]+)", 100, -3., 1.);
96 fAnalysis->CreateH1("h3", "log10(theta- [g]-)", 100, -3., 1.);
97 fAnalysis->CreateH1("h4", "log10(theta+ [g]+ -theta- [g]-)", 100, -3., 1.);
98 fAnalysis->CreateH1("h5", "xPlus", 100, 0., 1.);
99 fAnalysis->CreateH1("h6", "xMinus", 100, 0., 1.);
100
101 // creating histogram 7,8,9,10,11 (CrossSectionPerAtom)
102 //
103 G4double minBin = std::log10(fMinE / GeV);
104 G4double maxBin = std::log10(fMaxE / GeV);
105 fAnalysis->CreateH1("h7", "CrossSectionPerAtom of AnnihiToMuMu (microbarn)", fnBin, minBin,
106 maxBin);
107 fAnalysis->CreateH1("h8", "CrossSectionPerAtom of AnnihiToTwoGamma (microbarn)", fnBin, minBin,
108 maxBin);
109 fAnalysis->CreateH1("h9", "CrossSectionPerAtom of AnnihiToHadrons (microbarn)", fnBin, minBin,
110 maxBin);
111 fAnalysis->CreateH1("h10", "Theoretical CrossSectionPerAtom of AnnihiToTwoGamma (microbarn)",
112 fnBin, minBin, maxBin);
113 fAnalysis->CreateH1("h11", "Theoretical CrossSectionPerAtom of AnnihiToMuMu (microbarn)", fnBin,
114 minBin, maxBin);
115
116 // creating histogram 12,13,14,15,16(CrossSectionPerVolume)
117 //
118 fAnalysis->CreateH1("h12", "CrossSectionPerVol of Bremsstraulung (1/mm) ", fnBin, minBin, maxBin);
119 fAnalysis->CreateH1("h13", "CrossSectionPerVol of Ionization (1/mm)", fnBin, minBin, maxBin);
120 fAnalysis->CreateH1("h14", "CrossSectionPerVol of AnnihiToMuMu (1/mm)", fnBin, minBin, maxBin);
121 fAnalysis->CreateH1("h15", "CrossSectionPerVol of AnnihiToTwoGamma (1/mm)", fnBin, minBin,
122 maxBin);
123 fAnalysis->CreateH1("h16", "CrossSectionPerVol of AnnihiToHadrons (1/mm)", fnBin, minBin, maxBin);
124
125 // creating histogram 17 (R ratio)
126 fAnalysis->CreateH1("h17", "R : eeToHadr/eeToMu", fnBin, minBin, maxBin);
127
128 G4cout << "\n----> Histogram file is opened in " << fileName << G4endl;
129 }
130
131 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
132
133 void RunAction::CountProcesses(G4String procName)
134 {
135 // does the process already encounted ?
136 //
137 size_t nbProc = fProcCounter->size();
138 size_t i = 0;
139 while ((i < nbProc) && ((*fProcCounter)[i]->GetName() != procName))
140 i++;
141 if (i == nbProc) fProcCounter->push_back(new OneProcessCount(procName));
142
143 (*fProcCounter)[i]->Count();
144 }
145
146 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
147
148 void RunAction::EndOfRunAction(const G4Run*)
149 {
150 G4cout << "### RunAction::EndOfRunAction" << G4endl;
151 // total number of process calls
152 //
153 G4cout << "\n Number of process calls --->";
154 for (size_t i = 0; i < fProcCounter->size(); ++i) {
155 G4String procName = (*fProcCounter)[i]->GetName();
156 if (procName != "Transportation") {
157 G4int count = (*fProcCounter)[i]->GetCounter();
158 G4cout << "\t" << procName << " : " << count;
159 }
160 }
161 G4cout << G4endl;
162
163 // instance EmCalculator
164 //
165 G4EmCalculator emCal;
166 emCal.SetVerbose(0);
167
168 // get positron
169 //
170 G4String positronName = "e+";
171 G4ParticleDefinition* positron = G4ParticleTable::GetParticleTable()->FindParticle(positronName);
172
173 // process name
174 //
175 G4String annihilName = "annihil";
176 G4String annihiToMuName = "AnnihiToMuPair";
177 G4String annihiToHadrName = "ee2hadr";
178 G4String BremName = "eBrem";
179 G4String IoniName = "eIoni";
180
181 // get AnnihiToMuPair
182 //
183 G4AnnihiToMuPair* annihiToMu =
184 reinterpret_cast<G4AnnihiToMuPair*>(emCal.FindProcess(positron, annihiToMuName));
185
186 // parameters for ComputeCrossSection
187 //
188 G4double atomicZ = 1.;
189 G4double atomicA = 2.;
190
191 // set parameters for theory
192 //
193 const G4ParticleDefinition* muon = G4MuonMinus::MuonMinus();
194 G4double Mu = muon->GetPDGMass();
195 G4double Me = electron_mass_c2;
196 G4double Re = classic_electr_radius;
197 G4double Ru = Re * Me / Mu;
198 G4double Eth = 2 * Mu * Mu / Me - Me;
199 G4PhysicsLogVector v(fMinE, fMaxE, fnBin, false);
200
201 // Compute CrossSections and Fill histgrams
202 //
203 for (G4int i = 0; i <= fnBin; ++i) {
204 G4double energy = v.Energy(i);
205 G4double x = std::log10(energy / GeV);
206
207 // CrossSectionPerAtom
208 //
209 G4double crs_annihiToMu = annihiToMu->ComputeCrossSectionPerAtom(energy, atomicZ);
210 // G4cout << "crs_annihiToMu(mkb)=" << crs_annihiToMu/microbarn << G4endl;
211 fAnalysis->FillH1(7, x, crs_annihiToMu / microbarn);
212
213 G4double crs_annihil =
214 emCal.ComputeCrossSectionPerAtom(energy, positron, annihilName, atomicZ, atomicA);
215 fAnalysis->FillH1(8, x, crs_annihil / microbarn);
216
217 G4double crs_annihiToHadr =
218 emCal.ComputeCrossSectionPerAtom(energy, positron, annihiToHadrName, atomicZ, atomicA);
219 fAnalysis->FillH1(9, x, crs_annihiToHadr / microbarn);
220
221 // CrossSectionPerVolume
222 //
223 G4double crsVol_Brem =
224 emCal.ComputeCrossSectionPerVolume(energy, positron, BremName, fMat, 100 * keV);
225 fAnalysis->FillH1(12, x, crsVol_Brem * mm);
226
227 G4double crsVol_Ioni =
228 emCal.ComputeCrossSectionPerVolume(energy, positron, IoniName, fMat, 100 * keV);
229 fAnalysis->FillH1(13, x, crsVol_Ioni * mm);
230
231 G4double crsVol_annihiToMu = annihiToMu->CrossSectionPerVolume(energy, fMat);
232 fAnalysis->FillH1(14, x, crsVol_annihiToMu * mm);
233
234 G4double crsVol_annihil =
235 emCal.ComputeCrossSectionPerVolume(energy, positron, annihilName, fMat);
236 fAnalysis->FillH1(15, x, crsVol_annihil * mm);
237
238 G4double crsVol_annihiToHadr =
239 emCal.ComputeCrossSectionPerVolume(energy, positron, annihiToHadrName, fMat);
240 fAnalysis->FillH1(16, x, crsVol_annihiToHadr * mm);
241
242 // R ratio
243 //
244 G4double RR = 0.0;
245 if (crsVol_annihiToMu > 0.) RR = crsVol_annihiToHadr / crsVol_annihiToMu;
246 fAnalysis->FillH1(17, x, RR);
247
248 // Theoretical calculation
249 //
250 G4double X1 = energy / Me;
251 if (X1 > 1 && i % 1000 == 0) {
252 G4double crs_annihil_theory =
253 atomicZ * pi * Re * Re
254 * ((X1 * X1 + 4 * X1 + 1) * G4Log(X1 + std::sqrt(X1 * X1 - 1)) / (X1 * X1 - 1)
255 - (X1 + 3) / std::sqrt(X1 * X1 - 1))
256 / (X1 + 1);
257 fAnalysis->FillH1(10, x, crs_annihil_theory / microbarn);
258 }
259
260 G4double X2 = Eth / energy;
261 if (X2 < 1. && i % 1000 == 0) {
262 G4double crs_annihiToMu_theory =
263 atomicZ * pi * Ru * Ru / 3 * X2 * (1 + X2 / 2) * std::sqrt(1 - X2);
264 fAnalysis->FillH1(11, x, crs_annihiToMu_theory / microbarn);
265 }
266
267 // if(i%1000==0)G4cout <<"###energy:" << energy << "/crs_ToMuMu:"
268 // << crs_annihiToMu << "/crs_ToTwoGamma:"<< crs_annihil
269 // <<"/crs_ToToHadr:"<<crs_annihiToHadr<< G4endl;
270 }
271
272 fAnalysis->Write();
273 fAnalysis->CloseFile();
274 fAnalysis->Clear();
275
276 G4cout << G4endl;
277 }
278
279 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
280