1 | // |
---|
2 | // ******************************************************************** |
---|
3 | // * License and Disclaimer * |
---|
4 | // * * |
---|
5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
7 | // * conditions of the Geant4 Software License, included in the file * |
---|
8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
9 | // * include a list of copyright holders. * |
---|
10 | // * * |
---|
11 | // * Neither the authors of this software system, nor their employing * |
---|
12 | // * institutes,nor the agencies providing financial support for this * |
---|
13 | // * work make any representation or warranty, express or implied, * |
---|
14 | // * regarding this software system or assume any liability for its * |
---|
15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
16 | // * for the full disclaimer and the limitation of liability. * |
---|
17 | // * * |
---|
18 | // * This code implementation is the result of the scientific and * |
---|
19 | // * technical work of the GEANT4 collaboration. * |
---|
20 | // * By using, copying, modifying or distributing the software (or * |
---|
21 | // * any work based on the software) you agree to acknowledge its * |
---|
22 | // * use in resulting scientific publications, and indicate your * |
---|
23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
24 | // ******************************************************************** |
---|
25 | // |
---|
26 | #define hTestPrimaryGeneratorAction_CPP |
---|
27 | |
---|
28 | //--------------------------------------------------------------------------- |
---|
29 | // |
---|
30 | // ClassName: hTestPrimaryGeneratorAction |
---|
31 | // |
---|
32 | // Description: Generate primary beam |
---|
33 | // |
---|
34 | // Authors: 0.6.04.01 V.Ivanchenko |
---|
35 | // |
---|
36 | // Modified: |
---|
37 | // |
---|
38 | //---------------------------------------------------------------------------- |
---|
39 | // |
---|
40 | |
---|
41 | #include "hTestPrimaryGeneratorAction.hh" |
---|
42 | #include "hTestPrimaryGeneratorMessenger.hh" |
---|
43 | #include "Randomize.hh" |
---|
44 | #include "G4ParticleGun.hh" |
---|
45 | #include "G4ParticleTable.hh" |
---|
46 | #include "G4ParticleDefinition.hh" |
---|
47 | #include "hTestHisto.hh" |
---|
48 | |
---|
49 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
50 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
51 | |
---|
52 | hTestPrimaryGeneratorAction::hTestPrimaryGeneratorAction( |
---|
53 | hTestDetectorConstruction* det): |
---|
54 | theDet(det) |
---|
55 | { |
---|
56 | InitializeMe(); |
---|
57 | } |
---|
58 | |
---|
59 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
60 | |
---|
61 | void hTestPrimaryGeneratorAction::InitializeMe() |
---|
62 | { |
---|
63 | verbose = theDet->GetVerbose(); |
---|
64 | theMessenger = new hTestPrimaryGeneratorMessenger(this); |
---|
65 | particleGun = new G4ParticleGun(); |
---|
66 | counter = 0; |
---|
67 | x0 = 0.0; |
---|
68 | y0 = 0.0; |
---|
69 | z0 = 0.0; |
---|
70 | sigmaX = 0.0; |
---|
71 | sigmaY = 0.0; |
---|
72 | sigmaZ = 0.0; |
---|
73 | sigmaE = 0.0; |
---|
74 | minCosTheta = 1.0; |
---|
75 | SetBeamEnergy(10.0*MeV); |
---|
76 | position = G4ThreeVector(x0,y0,z0); |
---|
77 | direction = G4ThreeVector(0.0,0.0,1.0); |
---|
78 | m_gauss = true; |
---|
79 | if(energy < (hTestHisto::GetPointer())->GetMaxEnergy()) |
---|
80 | (hTestHisto::GetPointer())->SetMaxEnergy(energy); |
---|
81 | } |
---|
82 | |
---|
83 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
84 | |
---|
85 | hTestPrimaryGeneratorAction::~hTestPrimaryGeneratorAction() |
---|
86 | { |
---|
87 | delete particleGun; |
---|
88 | delete theMessenger; |
---|
89 | } |
---|
90 | |
---|
91 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
92 | |
---|
93 | void hTestPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent) |
---|
94 | { |
---|
95 | counter++ ; |
---|
96 | verbose = theDet->GetVerbose(); |
---|
97 | |
---|
98 | // Simulation of beam position |
---|
99 | G4double x = x0; |
---|
100 | G4double y = y0; |
---|
101 | G4double z = z0; |
---|
102 | if(0.0 < sigmaX) x += G4RandGauss::shoot(0.0,sigmaX); |
---|
103 | if(0.0 < sigmaY) y += G4RandGauss::shoot(0.0,sigmaY); |
---|
104 | if(0.0 < sigmaZ) z += G4RandGauss::shoot(0.0,sigmaZ); |
---|
105 | position = G4ThreeVector(x,y,z); |
---|
106 | particleGun->SetParticlePosition(position); |
---|
107 | |
---|
108 | // Simulation of beam direction |
---|
109 | G4double ux = direction.x(); |
---|
110 | G4double uy = direction.y(); |
---|
111 | G4double uz = direction.z(); |
---|
112 | |
---|
113 | // Beam particles are uniformly distributed over phi, cosTheta |
---|
114 | if(1.0 > minCosTheta) { |
---|
115 | uz = minCosTheta + (1.0 - minCosTheta)*G4UniformRand() ; |
---|
116 | ux = std::sqrt(1.0 - uz*uz) ; |
---|
117 | uy = ux ; |
---|
118 | G4double phi = 360.0*deg*G4UniformRand() ; |
---|
119 | ux *= std::cos(phi) ; |
---|
120 | uy *= std::sin(phi) ; |
---|
121 | direction = G4ThreeVector(ux,uy,uz) ; |
---|
122 | } |
---|
123 | |
---|
124 | direction = direction.unit(); |
---|
125 | particleGun->SetParticleMomentumDirection(direction); |
---|
126 | G4ParticleDefinition* particle = particleGun->GetParticleDefinition(); |
---|
127 | G4double mass = particle->GetPDGMass(); |
---|
128 | |
---|
129 | // Simulation of beam kinetic energy |
---|
130 | G4double kinEnergy = energy; |
---|
131 | |
---|
132 | if(m_gauss == "flatE") kinEnergy = minE + (maxE-minE)*G4UniformRand(); |
---|
133 | |
---|
134 | else if(m_gauss == "flatBeta") { |
---|
135 | G4double beta = minBeta + (maxBeta-minBeta)*G4UniformRand(); |
---|
136 | kinEnergy = mass*(1./std::sqrt(1. - beta*beta) - 1.); |
---|
137 | } |
---|
138 | else if(0.0 < sigmaE) kinEnergy += G4RandGauss::shoot(0.0,sigmaE); |
---|
139 | |
---|
140 | |
---|
141 | if(0.0 > kinEnergy) kinEnergy = 0.0; |
---|
142 | particleGun->SetParticleEnergy(kinEnergy); |
---|
143 | |
---|
144 | G4String particleName = particle->GetParticleName() ; |
---|
145 | |
---|
146 | if(verbose > 0) { |
---|
147 | G4cout << "Event# " << counter |
---|
148 | << " Beam particle is generated by hTestPrimaryGeneratorAction " |
---|
149 | << G4endl; |
---|
150 | G4cout << "ParticleName= " << particleName |
---|
151 | << " PDGcode= " << particle->GetPDGEncoding() |
---|
152 | << std::setprecision(5) |
---|
153 | << " KinEnergy(GeV)= " |
---|
154 | << energy/GeV |
---|
155 | << " x(mm)= " |
---|
156 | << x/mm |
---|
157 | << " y(mm)= " |
---|
158 | << y/mm |
---|
159 | << " z(mm)= " |
---|
160 | << z/mm |
---|
161 | << " ux= " |
---|
162 | << ux |
---|
163 | << " uy= " |
---|
164 | << uy |
---|
165 | << " uz= " |
---|
166 | << uz |
---|
167 | << endl; |
---|
168 | } |
---|
169 | |
---|
170 | particleGun->GeneratePrimaryVertex(anEvent); |
---|
171 | if(verbose > 1) G4cout << "hTestPrimaryGeneratorAction: BeamOn" << G4endl; |
---|
172 | } |
---|
173 | |
---|
174 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
175 | |
---|
176 | void hTestPrimaryGeneratorAction::SetBeamBeta(G4double val) |
---|
177 | { |
---|
178 | G4ParticleDefinition* particle = particleGun->GetParticleDefinition(); |
---|
179 | G4double mass = particle->GetPDGMass(); |
---|
180 | if(val > 0. && val < 1.) energy = mass*(1./std::sqrt(1.-val*val) - 1.); |
---|
181 | G4cout << "hTestPrimaryGeneratorAction: KinEnergy(MeV)= " |
---|
182 | << energy/MeV << G4endl; |
---|
183 | minE = energy; |
---|
184 | maxE = energy; |
---|
185 | minBeta = val; |
---|
186 | maxBeta = val; |
---|
187 | } |
---|
188 | |
---|
189 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
190 | |
---|
191 | void hTestPrimaryGeneratorAction::SetSigmaBeta(G4double val) |
---|
192 | { |
---|
193 | G4ParticleDefinition* particle = particleGun->GetParticleDefinition(); |
---|
194 | G4double mass = particle->GetPDGMass(); |
---|
195 | if(val > 0. && val < 1.) { |
---|
196 | sigmaE = mass*(1./std::sqrt(1.-val*val) - 1.); |
---|
197 | G4double gamma = energy/mass + 1.; |
---|
198 | G4double beta0 = std::sqrt(1. - 1./(gamma*gamma)); |
---|
199 | G4double beta = beta0 + val; |
---|
200 | if (beta >= 1.) beta = 0.9999; |
---|
201 | maxBeta = beta; |
---|
202 | maxE = mass*(1./std::sqrt(1.-beta*beta) - 1.); |
---|
203 | beta = beta0 - val; |
---|
204 | if (beta <= 0.) beta = 0.0001; |
---|
205 | minBeta = beta; |
---|
206 | minE = mass*(1./std::sqrt(1.-beta*beta) - 1.); |
---|
207 | } |
---|
208 | } |
---|
209 | |
---|
210 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
211 | |
---|
212 | void hTestPrimaryGeneratorAction::SetBeamSigmaE(G4double val) |
---|
213 | { |
---|
214 | G4ParticleDefinition* particle = particleGun->GetParticleDefinition(); |
---|
215 | G4double mass = particle->GetPDGMass(); |
---|
216 | sigmaE = val; |
---|
217 | minE = energy - sigmaE; |
---|
218 | G4double gamma = minE/mass + 1.; |
---|
219 | minBeta = std::sqrt(1. - 1./(gamma*gamma)); |
---|
220 | maxE = energy + sigmaE; |
---|
221 | gamma = maxE/mass + 1.; |
---|
222 | maxBeta = std::sqrt(1. - 1./(gamma*gamma)); |
---|
223 | } |
---|
224 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
225 | |
---|
226 | void hTestPrimaryGeneratorAction::SetBeamEnergy(G4double val) |
---|
227 | { |
---|
228 | G4ParticleDefinition* particle = particleGun->GetParticleDefinition(); |
---|
229 | G4double mass = particle->GetPDGMass(); |
---|
230 | energy = val; |
---|
231 | minE = energy - sigmaE; |
---|
232 | G4double gamma = minE/mass + 1.; |
---|
233 | minBeta = std::sqrt(1. - 1./(gamma*gamma)); |
---|
234 | maxE = energy + sigmaE; |
---|
235 | gamma = maxE/mass + 1.; |
---|
236 | maxBeta = std::sqrt(1. - 1./(gamma*gamma)); |
---|
237 | if(energy < (hTestHisto::GetPointer())->GetMaxEnergy()) |
---|
238 | (hTestHisto::GetPointer())->SetMaxEnergy(energy); |
---|
239 | } |
---|
240 | |
---|
241 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
242 | |
---|
243 | |
---|
244 | |
---|
245 | |
---|
246 | |
---|
247 | |
---|
248 | |
---|
249 | |
---|