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25 // 25 //
26 // Author: Sebastien Incerti 26 // Author: Sebastien Incerti
27 // 22 January 2012 27 // 22 January 2012
28 // on base of G4LivermoreGammaConversi 28 // on base of G4LivermoreGammaConversionModel (original version)
29 // and G4LivermoreRayleighModel (MT ve 29 // and G4LivermoreRayleighModel (MT version)
30 // 30 //
31 // Modifications: Zhuxin Li@CENBG 31 // Modifications: Zhuxin Li@CENBG
32 // 11 March 2020 32 // 11 March 2020
33 // derives from G4PairProductio 33 // derives from G4PairProductionRelModel
34 // ------------------------------------------- 34 // -------------------------------------------------------------------
35 35
36 #include "G4LivermoreGammaConversionModel.hh" 36 #include "G4LivermoreGammaConversionModel.hh"
37 37
38 #include "G4AutoLock.hh" 38 #include "G4AutoLock.hh"
39 #include "G4Electron.hh" 39 #include "G4Electron.hh"
40 #include "G4EmParameters.hh" 40 #include "G4EmParameters.hh"
41 #include "G4Exp.hh" 41 #include "G4Exp.hh"
42 #include "G4ParticleChangeForGamma.hh" 42 #include "G4ParticleChangeForGamma.hh"
43 #include "G4PhysicalConstants.hh" 43 #include "G4PhysicalConstants.hh"
44 #include "G4PhysicsFreeVector.hh" 44 #include "G4PhysicsFreeVector.hh"
45 #include "G4SystemOfUnits.hh" 45 #include "G4SystemOfUnits.hh"
46 46
47 namespace 47 namespace
48 { 48 {
49 G4Mutex LivermoreGammaConversionModelMutex = G 49 G4Mutex LivermoreGammaConversionModelMutex = G4MUTEX_INITIALIZER;
50 } 50 }
51 51
52 //....oooOO0OOooo........oooOO0OOooo........oo 52 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
53 //....oooOO0OOooo........oooOO0OOooo........oo 53 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
54 54
55 G4PhysicsFreeVector* G4LivermoreGammaConversio 55 G4PhysicsFreeVector* G4LivermoreGammaConversionModel::data[] = {nullptr};
56 G4String G4LivermoreGammaConversionModel::gDat 56 G4String G4LivermoreGammaConversionModel::gDataDirectory = "";
57 57
58 G4LivermoreGammaConversionModel::G4LivermoreGa 58 G4LivermoreGammaConversionModel::G4LivermoreGammaConversionModel(const G4ParticleDefinition* p,
59 59 const G4String& nam)
60 : G4PairProductionRelModel(p, nam) 60 : G4PairProductionRelModel(p, nam)
61 { 61 {
62 fParticleChange = nullptr; 62 fParticleChange = nullptr;
63 lowEnergyLimit = 2. * CLHEP::electron_mass_c 63 lowEnergyLimit = 2. * CLHEP::electron_mass_c2;
64 verboseLevel = 0; 64 verboseLevel = 0;
65 // Verbosity scale for debugging purposes: 65 // Verbosity scale for debugging purposes:
66 // 0 = nothing 66 // 0 = nothing
67 // 1 = calculation of cross sections, file o 67 // 1 = calculation of cross sections, file openings...
68 // 2 = entering in methods 68 // 2 = entering in methods
69 if (verboseLevel > 0) { 69 if (verboseLevel > 0) {
70 G4cout << "G4LivermoreGammaConversionModel 70 G4cout << "G4LivermoreGammaConversionModel is constructed " << G4endl;
71 } 71 }
72 } 72 }
73 73
74 //....oooOO0OOooo........oooOO0OOooo........oo 74 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
75 75
76 G4LivermoreGammaConversionModel::~G4LivermoreG 76 G4LivermoreGammaConversionModel::~G4LivermoreGammaConversionModel()
77 { 77 {
78 if (IsMaster()) { 78 if (IsMaster()) {
79 for (G4int i = 0; i <= maxZ; ++i) { 79 for (G4int i = 0; i <= maxZ; ++i) {
80 if (data[i]) { 80 if (data[i]) {
81 delete data[i]; 81 delete data[i];
82 data[i] = nullptr; 82 data[i] = nullptr;
83 } 83 }
84 } 84 }
85 } 85 }
86 } 86 }
87 87
88 //....oooOO0OOooo........oooOO0OOooo........oo 88 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
89 89
90 void G4LivermoreGammaConversionModel::Initiali 90 void G4LivermoreGammaConversionModel::Initialise(const G4ParticleDefinition* particle,
91 91 const G4DataVector& cuts)
92 { 92 {
93 G4PairProductionRelModel::Initialise(particl 93 G4PairProductionRelModel::Initialise(particle, cuts);
94 if (verboseLevel > 1) { 94 if (verboseLevel > 1) {
95 G4cout << "Calling Initialise() of G4Liver 95 G4cout << "Calling Initialise() of G4LivermoreGammaConversionModel." << G4endl
96 << "Energy range: " << LowEnergyLim 96 << "Energy range: " << LowEnergyLimit() / MeV << " MeV - " << HighEnergyLimit() / GeV
97 << " GeV isMater: " << IsMaster() < 97 << " GeV isMater: " << IsMaster() << G4endl;
98 } 98 }
99 99
100 if (IsMaster()) { 100 if (IsMaster()) {
101 // Initialise element selector 101 // Initialise element selector
102 InitialiseElementSelectors(particle, cuts) 102 InitialiseElementSelectors(particle, cuts);
103 103
104 // Access to elements 104 // Access to elements
105 const G4ElementTable* elemTable = G4Elemen 105 const G4ElementTable* elemTable = G4Element::GetElementTable();
106 std::size_t numElems = (*elemTable).size() 106 std::size_t numElems = (*elemTable).size();
107 for (std::size_t ie = 0; ie < numElems; ++ 107 for (std::size_t ie = 0; ie < numElems; ++ie) {
108 const G4Element* elem = (*elemTable)[ie] 108 const G4Element* elem = (*elemTable)[ie];
109 const G4int Z = std::min(maxZ, elem->Get 109 const G4int Z = std::min(maxZ, elem->GetZasInt());
110 if (data[Z] == nullptr) { 110 if (data[Z] == nullptr) {
111 ReadData(Z); 111 ReadData(Z);
112 } 112 }
113 } 113 }
114 } 114 }
115 if (isInitialised) { 115 if (isInitialised) {
116 return; 116 return;
117 } 117 }
118 fParticleChange = GetParticleChangeForGamma( 118 fParticleChange = GetParticleChangeForGamma();
119 isInitialised = true; 119 isInitialised = true;
120 } 120 }
121 121
122 //....oooOO0OOooo........oooOO0OOooo........oo 122 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
123 123
124 const G4String& G4LivermoreGammaConversionMode 124 const G4String& G4LivermoreGammaConversionModel::FindDirectoryPath()
125 { 125 {
126 // no check in this method - environment var 126 // no check in this method - environment variable is check by utility
127 if (gDataDirectory.empty()) { 127 if (gDataDirectory.empty()) {
128 auto param = G4EmParameters::Instance(); 128 auto param = G4EmParameters::Instance();
129 std::ostringstream ost; 129 std::ostringstream ost;
130 if (param->LivermoreDataDir() == "livermor 130 if (param->LivermoreDataDir() == "livermore") {
131 ost << param->GetDirLEDATA() << "/liverm 131 ost << param->GetDirLEDATA() << "/livermore/pair/";
132 useSpline = true; 132 useSpline = true;
133 } 133 }
134 else { 134 else {
135 ost << param->GetDirLEDATA() << "/epics2 135 ost << param->GetDirLEDATA() << "/epics2017/pair/";
136 } 136 }
137 gDataDirectory = ost.str(); 137 gDataDirectory = ost.str();
138 } 138 }
139 return gDataDirectory; 139 return gDataDirectory;
140 } 140 }
141 141
142 //....oooOO0OOooo........oooOO0OOooo........oo 142 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
143 143
144 void G4LivermoreGammaConversionModel::ReadData 144 void G4LivermoreGammaConversionModel::ReadData(const G4int Z)
145 { 145 {
146 if (verboseLevel > 1) { 146 if (verboseLevel > 1) {
147 G4cout << "Calling ReadData() of G4Livermo 147 G4cout << "Calling ReadData() of G4LivermoreGammaConversionModel" << G4endl;
148 } 148 }
149 149
150 if (data[Z] != nullptr) { 150 if (data[Z] != nullptr) {
151 return; 151 return;
152 } 152 }
153 153
154 std::ostringstream ost; 154 std::ostringstream ost;
155 ost << FindDirectoryPath() << "pp-cs-" << Z 155 ost << FindDirectoryPath() << "pp-cs-" << Z << ".dat";
156 156
157 data[Z] = new G4PhysicsFreeVector(useSpline) 157 data[Z] = new G4PhysicsFreeVector(useSpline);
158 158
159 std::ifstream fin(ost.str().c_str()); 159 std::ifstream fin(ost.str().c_str());
160 160
161 if (!fin.is_open()) { 161 if (!fin.is_open()) {
162 G4ExceptionDescription ed; 162 G4ExceptionDescription ed;
163 ed << "G4LivermoreGammaConversionModel dat 163 ed << "G4LivermoreGammaConversionModel data file <" << ost.str().c_str() << "> is not opened!"
164 << G4endl; 164 << G4endl;
165 G4Exception("G4LivermoreGammaConversionMod 165 G4Exception("G4LivermoreGammaConversionModel::ReadData()", "em0003", FatalException, ed,
166 "G4LEDATA version should be G4 166 "G4LEDATA version should be G4EMLOW8.0 or later.");
167 return; 167 return;
168 } 168 }
169 else { 169 else {
170 if (verboseLevel > 1) { 170 if (verboseLevel > 1) {
171 G4cout << "File " << ost.str() << " is o 171 G4cout << "File " << ost.str() << " is opened by G4LivermoreGammaConversionModel" << G4endl;
172 } 172 }
173 173
174 data[Z]->Retrieve(fin, true); 174 data[Z]->Retrieve(fin, true);
175 } 175 }
176 // Activation of spline interpolation 176 // Activation of spline interpolation
177 if (useSpline) data[Z]->FillSecondDerivative 177 if (useSpline) data[Z]->FillSecondDerivatives();
178 } 178 }
179 179
180 //....oooOO0OOooo........oooOO0OOooo........oo 180 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
181 181
182 G4double 182 G4double
183 G4LivermoreGammaConversionModel::ComputeCrossS 183 G4LivermoreGammaConversionModel::ComputeCrossSectionPerAtom(const G4ParticleDefinition* particle,
184 184 G4double GammaEnergy, G4double Z,
185 185 G4double, G4double, G4double)
186 { 186 {
187 if (verboseLevel > 1) { 187 if (verboseLevel > 1) {
188 G4cout << "G4LivermoreGammaConversionModel 188 G4cout << "G4LivermoreGammaConversionModel::ComputeCrossSectionPerAtom() Z= " << Z << G4endl;
189 } 189 }
190 190
191 if (GammaEnergy < lowEnergyLimit) { 191 if (GammaEnergy < lowEnergyLimit) {
192 return 0.0; 192 return 0.0;
193 } 193 }
194 194
195 G4double xs = 0.0; 195 G4double xs = 0.0;
196 196
197 G4int intZ = std::max(1, std::min(G4lrint(Z) 197 G4int intZ = std::max(1, std::min(G4lrint(Z), maxZ));
198 198
199 G4PhysicsFreeVector* pv = data[intZ]; 199 G4PhysicsFreeVector* pv = data[intZ];
200 200
201 // if element was not initialised 201 // if element was not initialised
202 // do initialisation safely for MT mode 202 // do initialisation safely for MT mode
203 if (pv == nullptr) { 203 if (pv == nullptr) {
204 InitialiseForElement(particle, intZ); 204 InitialiseForElement(particle, intZ);
205 pv = data[intZ]; 205 pv = data[intZ];
206 if (pv == nullptr) { 206 if (pv == nullptr) {
207 return xs; 207 return xs;
208 } 208 }
209 } 209 }
210 // x-section is taken from the table 210 // x-section is taken from the table
211 xs = pv->Value(GammaEnergy); 211 xs = pv->Value(GammaEnergy);
212 212
213 if (verboseLevel > 0) { 213 if (verboseLevel > 0) {
214 G4cout << "*** Gamma conversion xs for Z=" 214 G4cout << "*** Gamma conversion xs for Z=" << Z << " at energy E(MeV)=" << GammaEnergy / MeV
215 << " cs=" << xs / millibarn << " m 215 << " cs=" << xs / millibarn << " mb" << G4endl;
216 } 216 }
217 return xs; 217 return xs;
218 } 218 }
219 219
220 //....oooOO0OOooo........oooOO0OOooo........oo 220 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
221 221
222 void G4LivermoreGammaConversionModel::Initiali 222 void G4LivermoreGammaConversionModel::InitialiseForElement(const G4ParticleDefinition*, G4int Z)
223 { 223 {
224 G4AutoLock l(&LivermoreGammaConversionModelM 224 G4AutoLock l(&LivermoreGammaConversionModelMutex);
225 if (data[Z] == nullptr) { 225 if (data[Z] == nullptr) {
226 ReadData(Z); 226 ReadData(Z);
227 } 227 }
228 l.unlock(); 228 l.unlock();
229 } 229 }
230 230
231 //....oooOO0OOooo........oooOO0OOooo........oo 231 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
232 232