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25 // 25 //
26 /// \file electromagnetic/TestEm0/src/RunActio 26 /// \file electromagnetic/TestEm0/src/RunAction.cc
27 /// \brief Implementation of the RunAction cla 27 /// \brief Implementation of the RunAction class
28 // 28 //
29 // << 29 // $Id$
>> 30 //
30 //....oooOO0OOooo........oooOO0OOooo........oo 31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31 //....oooOO0OOooo........oooOO0OOooo........oo 32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32 33
33 #include "RunAction.hh" 34 #include "RunAction.hh"
34 <<
35 #include "DetectorConstruction.hh" 35 #include "DetectorConstruction.hh"
36 #include "PrimaryGeneratorAction.hh" 36 #include "PrimaryGeneratorAction.hh"
37 37
38 #include "G4Electron.hh" << 38 #include "G4Run.hh"
>> 39 #include "G4ProcessManager.hh"
>> 40 #include "G4UnitsTable.hh"
39 #include "G4EmCalculator.hh" 41 #include "G4EmCalculator.hh"
40 #include "G4LossTableManager.hh" << 42 #include "G4Electron.hh"
41 #include "G4PhysicalConstants.hh" 43 #include "G4PhysicalConstants.hh"
42 #include "G4Positron.hh" <<
43 #include "G4ProcessManager.hh" <<
44 #include "G4Run.hh" <<
45 #include "G4SystemOfUnits.hh" 44 #include "G4SystemOfUnits.hh"
46 #include "G4UnitsTable.hh" <<
47 45
48 #include <vector> 46 #include <vector>
49 47
50 //....oooOO0OOooo........oooOO0OOooo........oo 48 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
51 49
52 RunAction::RunAction(DetectorConstruction* det 50 RunAction::RunAction(DetectorConstruction* det, PrimaryGeneratorAction* kin)
53 : fDetector(det), fPrimary(kin) << 51 :fDetector(det), fPrimary(kin)
54 {} << 52 { }
>> 53
>> 54 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 55
>> 56 RunAction::~RunAction()
>> 57 { }
>> 58
55 //....oooOO0OOooo........oooOO0OOooo........oo 59 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
56 60
57 void RunAction::BeginOfRunAction(const G4Run*) 61 void RunAction::BeginOfRunAction(const G4Run*)
58 { 62 {
59 // set precision for printing << 63 //set precision for printing
60 G4int prec = G4cout.precision(6); 64 G4int prec = G4cout.precision(6);
61 << 65
62 // instanciate EmCalculator << 66 //instanciate EmCalculator
63 G4EmCalculator emCal; 67 G4EmCalculator emCal;
64 // emCal.SetVerbose(2); 68 // emCal.SetVerbose(2);
65 << 69
66 // get particle << 70 // get particle
67 G4ParticleDefinition* particle = fPrimary->G << 71 G4ParticleDefinition* particle = fPrimary->GetParticleGun()
>> 72 ->GetParticleDefinition();
68 G4String partName = particle->GetParticleNam 73 G4String partName = particle->GetParticleName();
69 G4double charge = particle->GetPDGCharge(); << 74 G4double charge = particle->GetPDGCharge();
70 G4double energy = fPrimary->GetParticleGun() << 75 G4double energy = fPrimary->GetParticleGun()->GetParticleEnergy();
71 << 76
72 // get material 77 // get material
73 const G4Material* material = fDetector->GetM << 78 G4Material* material = fDetector->GetMaterial();
74 G4String matName = material->GetName(); << 79 G4String matName = material->GetName();
75 G4double density = material->GetDensity(); << 80 G4double density = material->GetDensity();
76 G4double radl = material->GetRadlen(); << 81 G4double radl = material->GetRadlen();
77 << 82
78 G4cout << "\n " << partName << " (" << G4Bes << 83 G4cout << "\n " << partName << " ("
79 << material->GetName() << " (density: << 84 << G4BestUnit(energy,"Energy") << ") in "
80 << "; radiation length: " << G4Best << 85 << material->GetName() << " (density: "
>> 86 << G4BestUnit(density,"Volumic Mass") << "; radiation length: "
>> 87 << G4BestUnit(radl, "Length") << ")" << G4endl;
81 88
82 // get cuts << 89 // get cuts
83 GetCuts(); 90 GetCuts();
84 if (charge != 0.) { 91 if (charge != 0.) {
85 G4cout << "\n Range cuts: \t gamma " << s << 92 G4cout << "\n Range cuts : \t gamma "
86 << "\t e- " << std::setw(12) << G4B << 93 << std::setw(8) << G4BestUnit(fRangeCut[0],"Length")
87 G4cout << "\n Energy cuts: \t gamma " << s << 94 << "\t e- " << std::setw(8) << G4BestUnit(fRangeCut[1],"Length");
88 << "\t e- " << std::setw(12) << G4B << 95 G4cout << "\n Energy cuts : \t gamma "
89 } << 96 << std::setw(8) << G4BestUnit(fEnergyCut[0],"Energy")
90 << 97 << "\t e- " << std::setw(8) << G4BestUnit(fEnergyCut[1],"Energy")
>> 98 << G4endl;
>> 99 }
>> 100
91 // max energy transfert 101 // max energy transfert
92 if (charge != 0.) { 102 if (charge != 0.) {
93 G4double Mass_c2 = particle->GetPDGMass(); << 103 G4double Mass_c2 = particle->GetPDGMass();
94 G4double moverM = electron_mass_c2 / Mass_ << 104 G4double moverM = electron_mass_c2/Mass_c2;
95 G4double gamM1 = energy / Mass_c2, gam = g << 105 G4double gamM1 = energy/Mass_c2, gam = gamM1 + 1., gamP1 = gam + 1.;
96 G4double Tmax = energy; << 106 G4double Tmax =
97 if (particle == G4Electron::Electron()) { << 107 (2*electron_mass_c2*gamM1*gamP1)/(1.+2*gam*moverM+moverM*moverM);
98 Tmax *= 0.5; << 108 G4double range = emCal.GetCSDARange(Tmax,G4Electron::Electron(),material);
99 } << 109
100 else if (particle != G4Positron::Positron( << 110 G4cout << "\n Max_energy _transferable : " << G4BestUnit(Tmax,"Energy")
101 Tmax = (2 * electron_mass_c2 * gamM1 * g << 111 << " (" << G4BestUnit(range,"Length") << ")" << G4endl;
102 } <<
103 G4double range = emCal.GetCSDARange(Tmax, <<
104 <<
105 G4cout << "\n Max_energy _transferable : <<
106 << G4BestUnit(range, "Length") << " <<
107 } 112 }
108 << 113
109 // get processList and extract EM processes 114 // get processList and extract EM processes (but not MultipleScattering)
110 G4ProcessVector* plist = particle->GetProces 115 G4ProcessVector* plist = particle->GetProcessManager()->GetProcessList();
111 G4String procName; 116 G4String procName;
112 G4double cut; 117 G4double cut;
113 std::vector<G4String> emName; 118 std::vector<G4String> emName;
114 std::vector<G4double> enerCut; 119 std::vector<G4double> enerCut;
115 size_t length = plist->size(); 120 size_t length = plist->size();
116 for (size_t j = 0; j < length; j++) { << 121 for (size_t j=0; j<length; j++) {
117 procName = (*plist)[j]->GetProcessName(); << 122 procName = (*plist)[j]->GetProcessName();
118 cut = fEnergyCut[1]; << 123 cut = fEnergyCut[1];
119 if ((procName == "eBrem") || (procName == << 124 if ((procName == "eBrem")||(procName == "muBrems")) cut = fEnergyCut[0];
120 if (((*plist)[j]->GetProcessType() == fEle << 125 if (((*plist)[j]->GetProcessType() == fElectromagnetic) &&
121 emName.push_back(procName); << 126 (procName != "msc")) {
122 enerCut.push_back(cut); << 127 emName.push_back(procName);
123 } << 128 enerCut.push_back(cut);
>> 129 }
124 } 130 }
125 << 131
126 // write html documentation, if requested <<
127 char* htmlDocName = std::getenv("G4PhysListN <<
128 char* htmlDocDir = std::getenv("G4PhysListDo <<
129 if (htmlDocName && htmlDocDir) { <<
130 G4LossTableManager::Instance()->DumpHtml() <<
131 } <<
132 <<
133 // print list of processes 132 // print list of processes
134 G4cout << "\n processes : "; 133 G4cout << "\n processes : ";
135 for (size_t j = 0; j < emName.size(); ++j) { << 134 for (size_t j=0; j<emName.size();j++)
136 G4cout << "\t" << std::setw(14) << emName[ << 135 G4cout << "\t" << std::setw(13) << emName[j] << "\t";
137 } << 136 G4cout << "\t" << std::setw(13) <<"total";
138 G4cout << "\t" << std::setw(14) << "total"; << 137
139 << 138 //compute cross section per atom (only for single material)
140 // compute cross section per atom (only for <<
141 if (material->GetNumberOfElements() == 1) { 139 if (material->GetNumberOfElements() == 1) {
142 G4double Z = material->GetZ(); 140 G4double Z = material->GetZ();
143 G4double A = material->GetA(); 141 G4double A = material->GetA();
144 << 142
145 std::vector<G4double> sigma0; 143 std::vector<G4double> sigma0;
146 G4double sig, sigtot = 0.; 144 G4double sig, sigtot = 0.;
147 145
148 for (size_t j = 0; j < emName.size(); j++) << 146 for (size_t j=0; j<emName.size();j++) {
149 sig = emCal.ComputeCrossSectionPerAtom(e << 147 sig = emCal.ComputeCrossSectionPerAtom
150 sigtot += sig; << 148 (energy,particle,emName[j],Z,A,enerCut[j]);
151 sigma0.push_back(sig); << 149 sigtot += sig;
>> 150 sigma0.push_back(sig);
152 } 151 }
153 sigma0.push_back(sigtot); 152 sigma0.push_back(sigtot);
154 153
155 G4cout << "\n \n cross section per atom << 154 G4cout << "\n \n cross section per atom : ";
156 for (size_t j = 0; j < sigma0.size(); ++j) << 155 for (size_t j=0; j<sigma0.size();j++) {
157 G4cout << "\t" << std::setw(9) << G4Best << 156 G4cout << "\t" << std::setw(13) << G4BestUnit(sigma0[j], "Surface");
158 } 157 }
159 G4cout << G4endl; 158 G4cout << G4endl;
160 } 159 }
161 << 160
162 // get cross section per volume << 161 //get cross section per volume
163 std::vector<G4double> sigma0; 162 std::vector<G4double> sigma0;
164 std::vector<G4double> sigma1; 163 std::vector<G4double> sigma1;
165 std::vector<G4double> sigma2; 164 std::vector<G4double> sigma2;
166 G4double Sig, SigtotComp = 0., Sigtot = 0.; 165 G4double Sig, SigtotComp = 0., Sigtot = 0.;
167 166
168 for (size_t j = 0; j < emName.size(); ++j) { << 167 for (size_t j=0; j<emName.size();j++) {
169 Sig = emCal.ComputeCrossSectionPerVolume(e << 168 Sig = emCal.ComputeCrossSectionPerVolume
170 SigtotComp += Sig; << 169 (energy,particle,emName[j],material,enerCut[j]);
>> 170 SigtotComp += Sig;
171 sigma0.push_back(Sig); 171 sigma0.push_back(Sig);
172 Sig = emCal.GetCrossSectionPerVolume(energ << 172 Sig = emCal.GetCrossSectionPerVolume(energy,particle,emName[j],material);
173 Sigtot += Sig; << 173 Sigtot += Sig;
174 sigma1.push_back(Sig); 174 sigma1.push_back(Sig);
175 sigma2.push_back(Sig / density); << 175 sigma2.push_back(Sig/density);
176 } 176 }
177 sigma0.push_back(SigtotComp); 177 sigma0.push_back(SigtotComp);
178 sigma1.push_back(Sigtot); 178 sigma1.push_back(Sigtot);
179 sigma2.push_back(Sigtot / density); << 179 sigma2.push_back(Sigtot/density);
180 << 180
181 // print cross sections << 181 //print cross sections
182 G4cout << "\n compCrossSectionPerVolume: "; << 182 G4cout << "\n \n compCrossSectionPerVolume : ";
183 for (size_t j = 0; j < sigma0.size(); ++j) { << 183 for (size_t j=0; j<sigma0.size();j++) {
184 G4cout << "\t" << std::setw(9) << sigma0[j << 184 G4cout << "\t" << std::setw(13) << sigma0[j]*cm << " cm^-1";
185 } 185 }
186 G4cout << "\n cross section per volume : "; 186 G4cout << "\n cross section per volume : ";
187 for (size_t j = 0; j < sigma1.size(); ++j) { << 187 for (size_t j=0; j<sigma1.size();j++) {
188 G4cout << "\t" << std::setw(9) << sigma1[j << 188 G4cout << "\t" << std::setw(13) << sigma1[j]*cm << " cm^-1";
189 } 189 }
190 << 190
191 G4cout << "\n cross section per mass : "; 191 G4cout << "\n cross section per mass : ";
192 for (size_t j = 0; j < sigma2.size(); ++j) { << 192 for (size_t j=0; j<sigma2.size();j++) {
193 G4cout << "\t" << std::setw(9) << G4BestUn << 193 G4cout << "\t" << std::setw(13)
194 } << 194 << G4BestUnit(sigma2[j], "Surface/Mass");
195 << 195 }
196 // print mean free path << 196
197 << 197 //print mean free path
>> 198
198 G4double lambda; 199 G4double lambda;
199 << 200
200 G4cout << "\n \n mean free path : 201 G4cout << "\n \n mean free path : ";
201 for (size_t j = 0; j < sigma1.size(); ++j) { << 202 for (size_t j=0; j<sigma1.size();j++) {
202 lambda = DBL_MAX; << 203 lambda = DBL_MAX;
203 if (sigma1[j] > 0.) lambda = 1 / sigma1[j] << 204 if (sigma1[j] > 0.) lambda = 1/sigma1[j];
204 G4cout << "\t" << std::setw(9) << G4BestUn << 205 G4cout << "\t" << std::setw(13) << G4BestUnit( lambda, "Length");
205 } << 206 }
206 << 207
207 // mean free path (g/cm2) << 208 //mean free path (g/cm2)
208 G4cout << "\n (g/cm2) : "; << 209 G4cout << "\n (g/cm2) : ";
209 for (size_t j = 0; j < sigma2.size(); ++j) { << 210 for (size_t j=0; j<sigma2.size();j++) {
210 lambda = DBL_MAX; << 211 lambda = DBL_MAX;
211 if (sigma2[j] > 0.) lambda = 1 / sigma2[j] << 212 if (sigma2[j] > 0.) lambda = 1/sigma2[j];
212 G4cout << "\t" << std::setw(9) << G4BestUn << 213 G4cout << "\t" << std::setw(13) << G4BestUnit( lambda, "Mass/Surface");
213 } 214 }
214 G4cout << G4endl; 215 G4cout << G4endl;
215 << 216
216 if (charge == 0.) { 217 if (charge == 0.) {
217 G4cout.precision(prec); 218 G4cout.precision(prec);
218 G4cout << "\n----------------------------- << 219 G4cout << "\n-------------------------------------------------------------\n"
>> 220 << G4endl;
219 return; 221 return;
220 } 222 }
221 << 223
222 // get stopping power << 224 //get stopping power
223 std::vector<G4double> dedx1; 225 std::vector<G4double> dedx1;
224 std::vector<G4double> dedx2; << 226 std::vector<G4double> dedx2;
225 G4double dedx, dedxtot = 0.; 227 G4double dedx, dedxtot = 0.;
226 size_t nproc = emName.size(); <<
227 228
228 for (size_t j = 0; j < nproc; ++j) { << 229 for (size_t j=0; j<emName.size();j++) {
229 dedx = emCal.ComputeDEDX(energy, particle, << 230 dedx = emCal.ComputeDEDX(energy,particle,emName[j],material,enerCut[j]);
230 dedxtot += dedx; <<
231 dedx1.push_back(dedx); 231 dedx1.push_back(dedx);
232 dedx2.push_back(dedx / density); << 232 dedx2.push_back(dedx/density);
233 } 233 }
>> 234 dedxtot = emCal.GetDEDX(energy,particle,material);
234 dedx1.push_back(dedxtot); 235 dedx1.push_back(dedxtot);
235 dedx2.push_back(dedxtot / density); << 236 dedx2.push_back(dedxtot/density);
236 << 237
237 // print stopping power << 238 //print stopping power
238 G4cout << "\n \n restricted dE/dx : 239 G4cout << "\n \n restricted dE/dx : ";
239 for (size_t j = 0; j <= nproc; ++j) { << 240 for (size_t j=0; j<sigma1.size();j++) {
240 G4cout << "\t" << std::setw(9) << G4BestUn << 241 G4cout << "\t" << std::setw(13) << G4BestUnit(dedx1[j],"Energy/Length");
241 } <<
242 <<
243 G4cout << "\n (MeV/g/cm2) : "; <<
244 for (size_t j = 0; j <= nproc; ++j) { <<
245 G4cout << "\t" << std::setw(9) << G4BestUn <<
246 } <<
247 dedxtot = 0.; <<
248 <<
249 for (size_t j = 0; j < nproc; ++j) { <<
250 dedx = emCal.ComputeDEDX(energy, particle, <<
251 dedxtot += dedx; <<
252 dedx1[j] = dedx; <<
253 dedx2[j] = dedx / density; <<
254 } <<
255 dedx1[nproc] = dedxtot; <<
256 dedx2[nproc] = dedxtot / density; <<
257 <<
258 // print stopping power <<
259 G4cout << "\n \n unrestricted dE/dx : <<
260 for (size_t j = 0; j <= nproc; ++j) { <<
261 G4cout << "\t" << std::setw(9) << G4BestUn <<
262 } 242 }
263 << 243
264 G4cout << "\n (MeV/g/cm2) : "; 244 G4cout << "\n (MeV/g/cm2) : ";
265 for (size_t j = 0; j <= nproc; ++j) { << 245 for (size_t j=0; j<sigma2.size();j++) {
266 G4cout << "\t" << std::setw(9) << G4BestUn << 246 G4cout << "\t" << std::setw(13) << G4BestUnit(dedx2[j],"Energy*Surface/Mass");
267 } 247 }
268 << 248
269 // get range from restricted dedx << 249 //get range from restricted dedx
270 G4double range1 = emCal.GetRangeFromRestrict << 250 G4double range1 = emCal.GetRangeFromRestricteDEDX(energy,particle,material);
271 G4double range2 = range1 * density; << 251 G4double range2 = range1*density;
272 << 252
273 // print range << 253 //get range from full dedx
274 G4cout << "\n \n range from restrict dE/dx: << 254 G4double Range1 = emCal.GetCSDARange(energy,particle,material);
275 << "\t" << std::setw(9) << G4BestUnit << 255 G4double Range2 = Range1*density;
276 << G4BestUnit(range2, "Mass/Surface") << 256
277 << 257 //print range
278 // get range from full dedx << 258 G4cout << "\n \n range from restrict dE/dx: "
279 G4double EmaxTable = G4EmParameters::Instanc << 259 << "\t" << std::setw(8) << G4BestUnit(range1,"Length")
280 if (energy < EmaxTable) { << 260 << " (" << std::setw(8) << G4BestUnit(range2,"Mass/Surface") << ")";
281 G4double Range1 = emCal.GetCSDARange(energ << 261
282 G4double Range2 = Range1 * density; << 262 G4cout << "\n range from full dE/dx : "
283 << 263 << "\t" << std::setw(8) << G4BestUnit(Range1,"Length")
284 G4cout << "\n range from full dE/dx : << 264 << " (" << std::setw(8) << G4BestUnit(Range2,"Mass/Surface") << ")";
285 << "\t" << std::setw(9) << G4BestUn << 265
286 << G4BestUnit(Range2, "Mass/Surface << 266 //get transport mean free path (for multiple scattering)
287 } << 267 G4double MSmfp1 = emCal.GetMeanFreePath(energy,particle,"msc",material);
288 << 268 G4double MSmfp2 = MSmfp1*density;
289 // get transport mean free path (for multipl << 269
290 G4double MSmfp1 = emCal.GetMeanFreePath(ener << 270 //print transport mean free path
291 G4double MSmfp2 = MSmfp1 * density; << 271 G4cout << "\n \n transport mean free path : "
292 << 272 << "\t" << std::setw(8) << G4BestUnit(MSmfp1,"Length")
293 // print transport mean free path << 273 << " (" << std::setw(8) << G4BestUnit(MSmfp2,"Mass/Surface") << ")";
294 G4cout << "\n \n transport mean free path : <<
295 << "\t" << std::setw(9) << G4BestUnit <<
296 << G4BestUnit(MSmfp2, "Mass/Surface") <<
297 274
298 if (particle == G4Electron::Electron()) Crit 275 if (particle == G4Electron::Electron()) CriticalEnergy();
299 << 276
300 G4cout << "\n------------------------------- 277 G4cout << "\n-------------------------------------------------------------\n";
301 G4cout << G4endl; 278 G4cout << G4endl;
302 << 279
303 // reset default precision << 280 // reset default precision
304 G4cout.precision(prec); << 281 G4cout.precision(prec);
305 } 282 }
306 283
307 //....oooOO0OOooo........oooOO0OOooo........oo 284 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
308 285
309 void RunAction::EndOfRunAction(const G4Run*) { << 286 void RunAction::EndOfRunAction(const G4Run* )
>> 287 { }
310 288
311 //....oooOO0OOooo........oooOO0OOooo........oo 289 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
312 290
313 #include "G4ProductionCutsTable.hh" 291 #include "G4ProductionCutsTable.hh"
314 292
315 //....oooOO0OOooo........oooOO0OOooo........oo 293 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
316 294
317 void RunAction::GetCuts() 295 void RunAction::GetCuts()
318 { << 296 {
319 G4ProductionCutsTable* theCoupleTable = G4Pr << 297 G4ProductionCutsTable* theCoupleTable =
320 << 298 G4ProductionCutsTable::GetProductionCutsTable();
>> 299
321 size_t numOfCouples = theCoupleTable->GetTab 300 size_t numOfCouples = theCoupleTable->GetTableSize();
322 const G4MaterialCutsCouple* couple = 0; 301 const G4MaterialCutsCouple* couple = 0;
323 G4int index = 0; 302 G4int index = 0;
324 for (size_t i = 0; i < numOfCouples; i++) { << 303 for (size_t i=0; i<numOfCouples; i++) {
325 couple = theCoupleTable->GetMaterialCutsCo << 304 couple = theCoupleTable->GetMaterialCutsCouple(i);
326 if (couple->GetMaterial() == fDetector->Ge << 305 if (couple->GetMaterial() == fDetector->GetMaterial()) {index = i; break;}
327 index = i; << 306 }
328 break; << 307
329 } << 308 fRangeCut[0] =
330 } << 309 (*(theCoupleTable->GetRangeCutsVector(idxG4GammaCut)))[index];
>> 310 fRangeCut[1] =
>> 311 (*(theCoupleTable->GetRangeCutsVector(idxG4ElectronCut)))[index];
>> 312 fRangeCut[2] =
>> 313 (*(theCoupleTable->GetRangeCutsVector(idxG4PositronCut)))[index];
>> 314
>> 315 fEnergyCut[0] =
>> 316 (*(theCoupleTable->GetEnergyCutsVector(idxG4GammaCut)))[index];
>> 317 fEnergyCut[1] =
>> 318 (*(theCoupleTable->GetEnergyCutsVector(idxG4ElectronCut)))[index];
>> 319 fEnergyCut[2] =
>> 320 (*(theCoupleTable->GetEnergyCutsVector(idxG4PositronCut)))[index];
331 321
332 fRangeCut[0] = (*(theCoupleTable->GetRangeCu <<
333 fRangeCut[1] = (*(theCoupleTable->GetRangeCu <<
334 fRangeCut[2] = (*(theCoupleTable->GetRangeCu <<
335 <<
336 fEnergyCut[0] = (*(theCoupleTable->GetEnergy <<
337 fEnergyCut[1] = (*(theCoupleTable->GetEnergy <<
338 fEnergyCut[2] = (*(theCoupleTable->GetEnergy <<
339 } 322 }
340 323
341 //....oooOO0OOooo........oooOO0OOooo........oo 324 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
342 325
343 void RunAction::CriticalEnergy() 326 void RunAction::CriticalEnergy()
344 { 327 {
345 // compute e- critical energy (Rossi definit 328 // compute e- critical energy (Rossi definition) and Moliere radius.
346 // Review of Particle Physics - Eur. Phys. J 329 // Review of Particle Physics - Eur. Phys. J. C3 (1998) page 147
347 // 330 //
348 G4EmCalculator emCal; 331 G4EmCalculator emCal;
349 << 332
350 const G4Material* material = fDetector->GetM 333 const G4Material* material = fDetector->GetMaterial();
351 const G4double radl = material->GetRadlen(); 334 const G4double radl = material->GetRadlen();
352 G4double ekin = 5 * MeV; << 335 G4double ekin = 5*MeV;
353 G4double deioni; 336 G4double deioni;
354 G4double err = 1., errmax = 0.001; << 337 G4double err = 1., errmax = 0.001;
355 G4int iter = 0, itermax = 10; << 338 G4int iter = 0 , itermax = 10;
356 while (err > errmax && iter < itermax) { 339 while (err > errmax && iter < itermax) {
357 iter++; << 340 iter++;
358 deioni = radl * emCal.ComputeDEDX(ekin, G4 << 341 deioni = radl*
359 err = std::abs(deioni - ekin) / ekin; << 342 emCal.ComputeDEDX(ekin,G4Electron::Electron(),"eIoni",material);
>> 343 err = std::abs(deioni - ekin)/ekin;
360 ekin = deioni; 344 ekin = deioni;
361 } 345 }
362 G4cout << "\n \n critical energy (Rossi) : << 346 G4cout << "\n \n critical energy (Rossi) : "
363 << "\t" << std::setw(8) << G4BestUnit << 347 << "\t" << std::setw(8) << G4BestUnit(ekin,"Energy");
364 << 348
365 // Pdg formula (only for single material) << 349 //Pdg formula (only for single material)
366 G4double pdga[2] = {610 * MeV, 710 * MeV}; << 350 G4double pdga[2] = { 610*MeV, 710*MeV };
367 G4double pdgb[2] = {1.24, 0.92}; << 351 G4double pdgb[2] = { 1.24, 0.92 };
368 G4double EcPdg = 0.; 352 G4double EcPdg = 0.;
369 << 353
370 if (material->GetNumberOfElements() == 1) { 354 if (material->GetNumberOfElements() == 1) {
371 G4int istat = 0; 355 G4int istat = 0;
372 if (material->GetState() == kStateGas) ist << 356 if (material->GetState() == kStateGas) istat = 1;
373 G4double Zeff = material->GetZ() + pdgb[is 357 G4double Zeff = material->GetZ() + pdgb[istat];
374 EcPdg = pdga[istat] / Zeff; << 358 EcPdg = pdga[istat]/Zeff;
375 G4cout << "\t\t\t (from Pdg formula : " << << 359 G4cout << "\t\t\t (from Pdg formula : "
376 } << 360 << std::setw(8) << G4BestUnit(EcPdg,"Energy") << ")";
377 << 361 }
378 const G4double Es = 21.2052 * MeV; << 362
379 G4double rMolier1 = Es / ekin, rMolier2 = rM << 363 const G4double Es = 21.2052*MeV;
380 G4cout << "\n Moliere radius : " << 364 G4double rMolier1 = Es/ekin, rMolier2 = rMolier1*radl;
381 << "\t" << std::setw(8) << rMolier1 < << 365 G4cout << "\n Moliere radius : "
382 << "= " << std::setw(8) << G4BestUnit << 366 << "\t" << std::setw(8) << rMolier1 << " X0 "
383 << 367 << "= " << std::setw(8) << G4BestUnit(rMolier2,"Length");
384 if (material->GetNumberOfElements() == 1) { << 368
385 G4double rMPdg = radl * Es / EcPdg; << 369 if (material->GetNumberOfElements() == 1) {
386 G4cout << "\t (from Pdg formula : " << std << 370 G4double rMPdg = radl*Es/EcPdg;
387 } << 371 G4cout << "\t (from Pdg formula : "
>> 372 << std::setw(8) << G4BestUnit(rMPdg,"Length") << ")";
>> 373 }
388 } 374 }
389 375
390 //....oooOO0OOooo........oooOO0OOooo........oo 376 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
391 377