| Geant4 Cross Reference |
1 // 1
2 // *******************************************
3 // * License and Disclaimer
4 // *
5 // * The Geant4 software is copyright of th
6 // * the Geant4 Collaboration. It is provided
7 // * conditions of the Geant4 Software License
8 // * LICENSE and available at http://cern.ch/
9 // * include a list of copyright holders.
10 // *
11 // * Neither the authors of this software syst
12 // * institutes,nor the agencies providing fin
13 // * work make any representation or warran
14 // * regarding this software system or assum
15 // * use. Please see the license in the file
16 // * for the full disclaimer and the limitatio
17 // *
18 // * This code implementation is the result
19 // * technical work of the GEANT4 collaboratio
20 // * By using, copying, modifying or distri
21 // * any work based on the software) you ag
22 // * use in resulting scientific publicati
23 // * acceptance of all terms of the Geant4 Sof
24 // *******************************************
25 //
26 // Author: Zhuxin Li@CENBG
27 // 11 March 2020
28 // on the base of G4LivermoreGammaConv
29 // derives from G4BetheHeitler5DModel
30 // -------------------------------------------
31
32 #include "G4LivermoreGammaConversion5DModel.hh
33
34 #include "G4AutoLock.hh"
35 #include "G4Electron.hh"
36 #include "G4EmParameters.hh"
37 #include "G4Exp.hh"
38 #include "G4ParticleChangeForGamma.hh"
39 #include "G4PhysicalConstants.hh"
40 #include "G4PhysicsFreeVector.hh"
41 #include "G4SystemOfUnits.hh"
42
43 namespace
44 {
45 G4Mutex LivermoreGammaConversion5DModelMutex =
46 }
47
48 //....oooOO0OOooo........oooOO0OOooo........oo
49 //....oooOO0OOooo........oooOO0OOooo........oo
50
51 G4PhysicsFreeVector* G4LivermoreGammaConversio
52 G4String G4LivermoreGammaConversion5DModel::gD
53
54 G4LivermoreGammaConversion5DModel::G4Livermore
55
56 : G4BetheHeitler5DModel(p, nam)
57 {
58 fParticleChange = nullptr;
59 lowEnergyLimit = 2. * CLHEP::electron_mass_c
60 verboseLevel = 0;
61 // Verbosity scale for debugging purposes:
62 // 0 = nothing
63 // 1 = calculation of cross sections, file o
64 // 2 = entering in methods
65 if (verboseLevel > 0) {
66 G4cout << "G4LivermoreGammaConversion5DMod
67 }
68 }
69
70 //....oooOO0OOooo........oooOO0OOooo........oo
71
72 G4LivermoreGammaConversion5DModel::~G4Livermor
73 {
74 if (IsMaster()) {
75 for (G4int i = 0; i < maxZ; ++i) {
76 if (data[i]) {
77 delete data[i];
78 data[i] = nullptr;
79 }
80 }
81 }
82 }
83
84 //....oooOO0OOooo........oooOO0OOooo........oo
85
86 void G4LivermoreGammaConversion5DModel::Initia
87
88 {
89 G4BetheHeitler5DModel::Initialise(particle,
90
91 if (verboseLevel > 1) {
92 G4cout << "Calling Initialise() of G4Liver
93 << "Energy range: " << LowEnergyLim
94 << " GeV isMater: " << IsMaster() <
95 }
96
97 if (IsMaster()) {
98 // Initialise element selector
99 InitialiseElementSelectors(particle, cuts)
100
101 // Access to elements
102 const G4ElementTable* elemTable = G4Elemen
103 std::size_t numElems = (*elemTable).size()
104 for (std::size_t ie = 0; ie < numElems; ++
105 const G4Element* elem = (*elemTable)[ie]
106 const G4int Z = std::min(maxZ, elem->Get
107 if (data[Z] == nullptr) {
108 ReadData(Z);
109 }
110 }
111 }
112
113 if (isInitialised) {
114 return;
115 }
116 fParticleChange = GetParticleChangeForGamma(
117 isInitialised = true;
118 }
119
120 //....oooOO0OOooo........oooOO0OOooo........oo
121
122 const G4String& G4LivermoreGammaConversion5DMo
123 {
124 // no check in this method - environment var
125 if (gDataDirectory.empty()) {
126 auto param = G4EmParameters::Instance();
127 std::ostringstream ost;
128 if (param->LivermoreDataDir() == "livermor
129 ost << param->GetDirLEDATA() << "/liverm
130 useSpline = true;
131 }
132 else {
133 ost << param->GetDirLEDATA() << "/epics2
134 }
135 gDataDirectory = ost.str();
136 }
137 return gDataDirectory;
138 }
139
140 //....oooOO0OOooo........oooOO0OOooo........oo
141
142 void G4LivermoreGammaConversion5DModel::ReadDa
143 {
144 if (verboseLevel > 1) {
145 G4cout << "Calling ReadData() of G4Livermo
146 }
147
148 if (data[Z]) {
149 return;
150 }
151
152 std::ostringstream ost;
153 ost << FindDirectoryPath() << "pp-cs-" << Z
154
155 data[Z] = new G4PhysicsFreeVector(useSpline)
156
157 std::ifstream fin(ost.str().c_str());
158
159 if (!fin.is_open()) {
160 G4ExceptionDescription ed;
161 ed << "G4LivermoreGammaConversion5DModel d
162 << G4endl;
163 G4Exception("G4LivermoreGammaConversion5DM
164 "G4LEDATA version should be G4
165 return;
166 }
167 else {
168 if (verboseLevel > 1) {
169 G4cout << "File " << ost.str() << " is o
170 }
171 data[Z]->Retrieve(fin, true);
172 }
173 // Activation of spline interpolation
174 if (useSpline) data[Z]->FillSecondDerivative
175 }
176
177 //....oooOO0OOooo........oooOO0OOooo........oo
178
179 G4double
180 G4LivermoreGammaConversion5DModel::ComputeCros
181
182
183 {
184 if (verboseLevel > 1) {
185 G4cout << "G4LivermoreGammaConversion5DMod
186 }
187 G4double xs = 0.0;
188 if (GammaEnergy < lowEnergyLimit) {
189 return xs;
190 }
191
192 G4int intZ = std::max(1, std::min(G4lrint(Z)
193 G4PhysicsFreeVector* pv = data[intZ];
194 // if element was not initialised
195 // do initialisation safely for MT mode
196 if (!pv) {
197 InitialiseForElement(particle, intZ);
198 pv = data[intZ];
199 if (!pv) {
200 return xs;
201 }
202 }
203 // x-section is taken from the table
204 xs = pv->Value(GammaEnergy);
205 if (verboseLevel > 0) {
206 G4cout << "*** Gamma conversion xs for Z="
207 << " cs=" << xs / millibarn << " m
208 }
209 return xs;
210 }
211
212 //....oooOO0OOooo........oooOO0OOooo........oo
213
214 void G4LivermoreGammaConversion5DModel::Initia
215 {
216 G4AutoLock l(&LivermoreGammaConversion5DMode
217 if (!data[Z]) {
218 ReadData(Z);
219 }
220 l.unlock();
221 }
222
223 //....oooOO0OOooo........oooOO0OOooo........oo
224