| 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 // This example is provided by the Geant4-DNA
27 // Any report or published results obtained us
28 // shall cite the following Geant4-DNA collabo
29 // Med. Phys. 37 (2010) 4692-4708
30 // and papers
31 // M. Batmunkh et al. J Radiat Res Appl Sci 8
32 // O. Belov et al. Physica Medica 32 (2016) 15
33 // The Geant4-DNA web site is available at htt
34 //
35 // -------------------------------------------
36 // November 2016
37 // -------------------------------------------
38 //
39 /// \file PrimaryGeneratorAction.cc
40 /// \brief Implementation of the PrimaryGenera
41
42 #include "PrimaryGeneratorAction.hh"
43
44 #include "G4SystemOfUnits.hh"
45 //
46 #include "CommandLineParser.hh"
47
48 #include "G4Box.hh"
49 #include "G4Event.hh"
50 #include "G4LogicalVolume.hh"
51 #include "G4LogicalVolumeStore.hh"
52 #include "G4Orb.hh"
53 #include "G4ParticleDefinition.hh"
54 #include "G4ParticleGun.hh"
55 #include "G4PhysicalConstants.hh"
56 #include "G4PhysicalVolumeStore.hh"
57 #include "G4Proton.hh"
58 #include "G4VPhysicalVolume.hh"
59 #include "Randomize.hh"
60
61 using namespace G4DNAPARSER;
62
63 //....oooOO0OOooo........oooOO0OOooo........oo
64
65 PrimaryGeneratorAction::PrimaryGeneratorAction
66 {
67 G4int n_particle = 1;
68 fpParticleGun = new G4ParticleGun(n_particle
69 //
70 G4ParticleDefinition* particle = G4Proton::P
71 fpParticleGun->SetParticleDefinition(particl
72 // default gun parameters
73 fpParticleGun->SetParticleEnergy(10. * MeV);
74 fpParticleGun->SetParticleMomentumDirection(
75 fpParticleGun->SetParticlePosition(G4ThreeVe
76 }
77
78 //....oooOO0OOooo........oooOO0OOooo........oo
79
80 PrimaryGeneratorAction::~PrimaryGeneratorActio
81 {
82 delete fpParticleGun;
83 }
84
85 //....oooOO0OOooo........oooOO0OOooo........oo
86
87 void PrimaryGeneratorAction::GeneratePrimaries
88 {
89 // Initial kinetic energy of particles beam
90
91 // G4double Ekin = 10.*MeV;
92 // G4double deltaEkin = 9.0955e-5*MeV;
93 // fpParticleGun->SetParticleEnergy(G4RandGa
94
95 // In order to avoid dependence of PrimaryGe
96 // on DetectorConstruction class we get worl
97 // from G4LogicalVolumeStore
98
99 // We included three options for particles d
100
101 G4double mediumRadius = 0.;
102 G4double boundingXHalfLength = 0.;
103 G4double boundingYHalfLength = 0.;
104 G4double boundingZHalfLength = 0.;
105 G4LogicalVolume* mediumLV = G4LogicalVolumeS
106 G4LogicalVolume* boundingLV = G4LogicalVolum
107 G4Orb* mediumSphere = 0;
108 G4Box* boundingSlice = 0;
109 if (mediumLV && boundingLV) {
110 mediumSphere = dynamic_cast<G4Orb*>(medium
111 boundingSlice = dynamic_cast<G4Box*>(bound
112 }
113 if (mediumSphere && boundingSlice) {
114 mediumRadius = mediumSphere->GetRadius();
115 boundingXHalfLength = boundingSlice->GetXH
116 boundingYHalfLength = boundingSlice->GetYH
117 boundingZHalfLength = boundingSlice->GetZH
118
119 /// a) Partilces directed to "square" on t
120 /// (or YZ, XZ)
121
122 if (CommandLineParser::GetParser()->GetCom
123 // INITIAL BEAM DIVERGENCE
124 fpParticleGun->SetParticleMomentumDirect
125 // // INITIAL BEAM POSITION
126 fpParticleGun->SetParticlePosition(G4Thr
127 CLHEP::RandFlat::shoot(-boundingXHalfL
128 CLHEP::RandFlat::shoot(-boundingYHalfL
129 }
130
131 /// b) Partilces directed to "disk" on the
132 /// bounding slice (or YZ, XZ)
133
134 else if (CommandLineParser::GetParser()->G
135 fpParticleGun->SetParticleMomentumDirect
136 G4double x0, y0, z0;
137 x0 = 100. * mm;
138 y0 = 100. * mm;
139 z0 = -mediumRadius; // mediumRadius;
140 while (!(std::sqrt(x0 * x0 + y0 * y0) <=
141 x0 = CLHEP::RandFlat::shoot(-mediumRad
142 y0 = CLHEP::RandFlat::shoot(-mediumRad
143 }
144 fpParticleGun->SetParticlePosition(G4Thr
145 }
146
147 /// c) Partilces directed towards the boun
148 // Select a starting position on a sphere
149 // target volume and neuron morphology
150 else {
151 G4double cosTheta = 2. * G4UniformRand()
152 G4double sinTheta = std::sqrt(1. - cosTh
153 G4double phi = twopi * G4UniformRand();
154 G4ThreeVector positionStart(mediumRadius
155 mediumRadius
156 fpParticleGun->SetParticlePosition(posit
157 // To compute the direction, select a po
158 G4ThreeVector positionDir(boundingXHalfL
159 boundingYHalfL
160 boundingZHalfL
161 fpParticleGun->SetParticleMomentumDirect
162 // Surface area of sphere
163 fGunArea = 4. * pi * mediumRadius * medi
164 }
165 }
166 else {
167 G4cerr << "Bounding slice volume not found
168 G4cerr << "Default particle kinematic used
169 }
170
171 fpParticleGun->GeneratePrimaryVertex(anEvent
172 }
173