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25 //
26 // G4AdjointPrimaryGeneratorAction implementat
27 //
28 // -------------------------------------------
29 // Class Name: G4AdjointPrimaryGeneratorAc
30 // Author: L. Desorgher, 2007-2009
31 // Organisation: SpaceIT GmbH
32 // Contract: ESA contract 21435/08/NL/AT
33 // Customer: ESA/ESTEC
34 // -------------------------------------------
35
36 #include "G4AdjointPrimaryGeneratorAction.hh"
37
38 #include "G4AdjointPrimaryGenerator.hh"
39 #include "G4AdjointSimManager.hh"
40 #include "G4Event.hh"
41 #include "G4Gamma.hh"
42 #include "G4ParticleDefinition.hh"
43 #include "G4ParticleTable.hh"
44 #include "G4PhysicalConstants.hh"
45
46 // -------------------------------------------
47 //
48 G4AdjointPrimaryGeneratorAction::G4AdjointPrim
49 {
50 theAdjointPrimaryGenerator = new G4AdjointPr
51
52 PrimariesConsideredInAdjointSim[G4String("e-
53 PrimariesConsideredInAdjointSim[G4String("ga
54 PrimariesConsideredInAdjointSim[G4String("pr
55 PrimariesConsideredInAdjointSim[G4String("io
56
57 ListOfPrimaryFwdParticles.clear();
58 ListOfPrimaryAdjParticles.clear();
59 }
60
61 // -------------------------------------------
62 //
63 G4AdjointPrimaryGeneratorAction::~G4AdjointPri
64 {
65 delete theAdjointPrimaryGenerator;
66 }
67
68 // -------------------------------------------
69 //
70 void G4AdjointPrimaryGeneratorAction::Generate
71 {
72 G4int evt_id = anEvent->GetEventID();
73 std::size_t n = ListOfPrimaryAdjParticles.si
74 index_particle = std::size_t(evt_id) - n * (
75
76 G4double E1 = Emin;
77 G4double E2 = Emax;
78 if (ListOfPrimaryAdjParticles[index_particle
79 UpdateListOfPrimaryParticles(); // ion ha
80
81 if (ListOfPrimaryAdjParticles[index_particle
82 E1 = EminIon;
83 E2 = EmaxIon;
84 }
85 if (ListOfPrimaryAdjParticles[index_particle
86 G4int A = ListOfPrimaryAdjParticles[index_
87 E1 = EminIon * A;
88 E2 = EmaxIon * A;
89 }
90 // Generate first the forwrad primaries
91 theAdjointPrimaryGenerator->GenerateFwdPrima
92 anEvent, ListOfPrimaryFwdParticles[index_p
93 G4PrimaryVertex* fwdPrimVertex = anEvent->Ge
94
95 p = fwdPrimVertex->GetPrimary()->GetMomentum
96 pos = fwdPrimVertex->GetPosition();
97 G4double pmag = p.mag();
98 G4double m0 = ListOfPrimaryFwdParticles[inde
99 G4double ekin = std::sqrt(m0 * m0 + pmag * p
100
101 G4double weight_correction = 1.;
102 // For gamma generate the particle along the
103 G4ThreeVector dir = -p / p.mag();
104
105 weight_correction = 1.;
106
107 if (ListOfPrimaryFwdParticles[index_particle
108 {
109 G4double weight = (1. / nb_fwd_gammas_per_
110 fwdPrimVertex->SetWeight(weight);
111 for (G4int i = 0; i < nb_fwd_gammas_per_ev
112 auto newFwdPrimVertex = new G4PrimaryVer
113 newFwdPrimVertex->SetPosition(pos.x(), p
114 newFwdPrimVertex->SetT0(0.);
115 auto aPrimParticle =
116 new G4PrimaryParticle(ListOfPrimaryFwd
117 newFwdPrimVertex->SetPrimary(aPrimPartic
118 newFwdPrimVertex->SetWeight(weight);
119 anEvent->AddPrimaryVertex(newFwdPrimVert
120 }
121 }
122
123 // Now generate the adjoint primaries
124 auto adjPrimVertex = new G4PrimaryVertex();
125 adjPrimVertex->SetPosition(pos.x(), pos.y(),
126 adjPrimVertex->SetT0(0.);
127 auto aPrimParticle =
128 new G4PrimaryParticle(ListOfPrimaryAdjPart
129
130 adjPrimVertex->SetPrimary(aPrimParticle);
131 anEvent->AddPrimaryVertex(adjPrimVertex);
132
133 // The factor pi is to normalise the weight
134 G4double adjoint_source_area = G4AdjointSimM
135 G4double adjoint_weight =
136 weight_correction * ComputeEnergyDistWeigh
137 if (ListOfPrimaryAdjParticles[index_particle
138 // The weight will be corrected at the end
139 // are used
140 adjoint_weight = adjoint_weight / nb_adj_p
141 for (G4int i = 0; i < nb_adj_primary_gamma
142 auto newAdjPrimVertex = new G4PrimaryVer
143 newAdjPrimVertex->SetPosition(pos.x(), p
144 newAdjPrimVertex->SetT0(0.);
145 aPrimParticle =
146 new G4PrimaryParticle(ListOfPrimaryAdj
147 newAdjPrimVertex->SetPrimary(aPrimPartic
148 newAdjPrimVertex->SetWeight(adjoint_weig
149 anEvent->AddPrimaryVertex(newAdjPrimVert
150 }
151 }
152 else if (ListOfPrimaryAdjParticles[index_par
153 // The weight will be corrected at the end
154 // are used
155 adjoint_weight = adjoint_weight / nb_adj_p
156 for (G4int i = 0; i < nb_adj_primary_elect
157 auto newAdjPrimVertex = new G4PrimaryVer
158 newAdjPrimVertex->SetPosition(pos.x(), p
159 newAdjPrimVertex->SetT0(0.);
160 aPrimParticle =
161 new G4PrimaryParticle(ListOfPrimaryAdj
162 newAdjPrimVertex->SetPrimary(aPrimPartic
163 newAdjPrimVertex->SetWeight(adjoint_weig
164 anEvent->AddPrimaryVertex(newAdjPrimVert
165 }
166 }
167 adjPrimVertex->SetWeight(adjoint_weight);
168
169 // Call some methods of G4AdjointSimManager
170 G4AdjointSimManager::GetInstance()->SetAdjoi
171 G4AdjointSimManager::GetInstance()->ClearEnd
172 G4AdjointSimManager::GetInstance()->ResetDid
173 }
174
175 // -------------------------------------------
176 //
177 void G4AdjointPrimaryGeneratorAction::SetEmin(
178 {
179 Emin = val;
180 EminIon = val;
181 }
182
183 // -------------------------------------------
184 //
185 void G4AdjointPrimaryGeneratorAction::SetEmax(
186 {
187 Emax = val;
188 EmaxIon = val;
189 }
190
191 // -------------------------------------------
192 //
193 void G4AdjointPrimaryGeneratorAction::SetEminI
194 {
195 EminIon = val;
196 }
197
198 // -------------------------------------------
199 //
200 void G4AdjointPrimaryGeneratorAction::SetEmaxI
201 {
202 EmaxIon = val;
203 }
204
205 // -------------------------------------------
206 //
207 G4double G4AdjointPrimaryGeneratorAction::Comp
208
209 {
210 // We generate N numbers of primaries with
211 // We have therefore an energy distribution
212 // f(E)=C/E (1)
213 // with C a constant that is such that
214 // N=Integral(f(E),E1,E2)=C.std::log(E2/E1
215 // Therefore from (2) we get
216 // C=N/ std::log(E2/E1) (3)
217 // and
218 // f(E)=N/ std::log(E2/E1)/E (4)
219 // For the adjoint simulation we need a ener
220 // To get that we need therefore to apply a
221 // W=1/f(E)=E*std::log(E2/E1)/N
222 //
223 return std::log(E2 / E1) * E / G4AdjointSimM
224 }
225
226 // -------------------------------------------
227 //
228 void G4AdjointPrimaryGeneratorAction::SetSpher
229
230 {
231 radius_spherical_source = radius;
232 center_spherical_source = center_pos;
233 type_of_adjoint_source = "Spherical";
234 theAdjointPrimaryGenerator->SetSphericalAdjo
235 }
236
237 // -------------------------------------------
238 //
239 void G4AdjointPrimaryGeneratorAction::SetAdjoi
240 const G4String& volume_name)
241 {
242 type_of_adjoint_source = "ExternalSurfaceOfA
243 theAdjointPrimaryGenerator->SetAdjointPrimar
244 }
245
246 // -------------------------------------------
247 //
248 void G4AdjointPrimaryGeneratorAction::Consider
249 {
250 if (PrimariesConsideredInAdjointSim.find(par
251 {
252 PrimariesConsideredInAdjointSim[particle_n
253 }
254 UpdateListOfPrimaryParticles();
255 }
256
257 // -------------------------------------------
258 //
259 void G4AdjointPrimaryGeneratorAction::NeglectP
260 {
261 if (PrimariesConsideredInAdjointSim.find(par
262 {
263 PrimariesConsideredInAdjointSim[particle_n
264 }
265 UpdateListOfPrimaryParticles();
266 }
267
268 // -------------------------------------------
269 //
270 void G4AdjointPrimaryGeneratorAction::UpdateLi
271 {
272 G4ParticleTable* theParticleTable = G4Partic
273 ListOfPrimaryFwdParticles.clear();
274 ListOfPrimaryAdjParticles.clear();
275 for (const auto& iter : PrimariesConsideredI
276 if (iter.second) {
277 G4String fwd_particle_name = iter.first;
278 if (fwd_particle_name != "ion") {
279 G4String adj_particle_name = G4String(
280 ListOfPrimaryFwdParticles.push_back(th
281 ListOfPrimaryAdjParticles.push_back(th
282 }
283 else {
284 if (fwd_ion != nullptr) {
285 ion_name = fwd_ion->GetParticleName(
286 G4String adj_ion_name = G4String("ad
287 ListOfPrimaryFwdParticles.push_back(
288 ListOfPrimaryAdjParticles.push_back(
289 }
290 else {
291 ListOfPrimaryFwdParticles.push_back(
292 ListOfPrimaryAdjParticles.push_back(
293 }
294 }
295 }
296 }
297 }
298
299 // -------------------------------------------
300 //
301 void G4AdjointPrimaryGeneratorAction::SetPrima
302
303 {
304 fwd_ion = fwdIon;
305 adj_ion = adjointIon;
306 UpdateListOfPrimaryParticles();
307 }
308