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1 // 1 //
2 // ******************************************* 2 // ********************************************************************
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4 // * 4 // * *
5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of *
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13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, *
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17 // * 17 // * *
18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its *
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // This example is provided by the Geant4-DNA 26 // This example is provided by the Geant4-DNA collaboration
27 // Any report or published results obtained us 27 // Any report or published results obtained using the Geant4-DNA software
28 // shall cite the following Geant4-DNA collabo 28 // shall cite the following Geant4-DNA collaboration publication:
29 // Med. Phys. 37 (2010) 4692-4708 29 // Med. Phys. 37 (2010) 4692-4708
30 // Delage et al. PDB4DNA: implementation of DN 30 // Delage et al. PDB4DNA: implementation of DNA geometry from the Protein Data
31 // Bank (PDB) description for 31 // Bank (PDB) description for Geant4-DNA Monte-Carlo
32 // simulations (submitted to 32 // simulations (submitted to Comput. Phys. Commun.)
33 // The Geant4-DNA web site is available at htt 33 // The Geant4-DNA web site is available at http://geant4-dna.org
34 // 34 //
35 // 35 //
36 /// \file PrimaryGeneratorAction.cc 36 /// \file PrimaryGeneratorAction.cc
37 /// \brief Implementation of the PrimaryGenera 37 /// \brief Implementation of the PrimaryGeneratorAction class
38 38
39 #include "PrimaryGeneratorAction.hh" 39 #include "PrimaryGeneratorAction.hh"
40 40
41 #include "G4Box.hh" 41 #include "G4Box.hh"
42 #include "G4Event.hh" 42 #include "G4Event.hh"
43 #include "G4LogicalVolume.hh" 43 #include "G4LogicalVolume.hh"
44 #include "G4LogicalVolumeStore.hh" 44 #include "G4LogicalVolumeStore.hh"
45 #include "G4ParticleDefinition.hh" 45 #include "G4ParticleDefinition.hh"
46 #include "G4ParticleGun.hh" 46 #include "G4ParticleGun.hh"
47 #include "G4ParticleTable.hh" 47 #include "G4ParticleTable.hh"
48 #include "G4PhysicalConstants.hh" 48 #include "G4PhysicalConstants.hh"
49 #include "G4PhysicalVolumeStore.hh" 49 #include "G4PhysicalVolumeStore.hh"
50 #include "G4SystemOfUnits.hh" 50 #include "G4SystemOfUnits.hh"
>> 51
51 #include "Randomize.hh" 52 #include "Randomize.hh"
52 53
53 //....oooOO0OOooo........oooOO0OOooo........oo 54 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
54 55
55 PrimaryGeneratorAction::PrimaryGeneratorAction << 56 PrimaryGeneratorAction::PrimaryGeneratorAction()
>> 57 : G4VUserPrimaryGeneratorAction()
56 { 58 {
57 G4int n_particle = 1; 59 G4int n_particle = 1;
58 fpParticleGun = new G4ParticleGun(n_particle << 60 fpParticleGun = new G4ParticleGun(n_particle);
59 61
60 // default particle kinematic 62 // default particle kinematic
61 63
62 G4ParticleDefinition* particle = G4ParticleT << 64 G4ParticleDefinition* particle
>> 65 = G4ParticleTable::GetParticleTable()->FindParticle("e-");
63 fpParticleGun->SetParticleDefinition(particl 66 fpParticleGun->SetParticleDefinition(particle);
64 fpParticleGun->SetParticleMomentumDirection( << 67 fpParticleGun->SetParticleMomentumDirection(G4ThreeVector(0.,0.,1.));
65 fpParticleGun->SetParticleEnergy(0.1 * MeV); << 68 fpParticleGun->SetParticleEnergy(0.1*MeV);
66 fpParticleGun->SetParticlePosition(G4ThreeVe << 69 fpParticleGun->SetParticlePosition(G4ThreeVector(0.*nm,0.*nm,0.*nm));
67 } 70 }
68 71
69 //....oooOO0OOooo........oooOO0OOooo........oo 72 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
70 73
71 PrimaryGeneratorAction::~PrimaryGeneratorActio 74 PrimaryGeneratorAction::~PrimaryGeneratorAction()
72 { 75 {
73 delete fpParticleGun; 76 delete fpParticleGun;
74 } 77 }
75 78
76 //....oooOO0OOooo........oooOO0OOooo........oo 79 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
77 80
78 void PrimaryGeneratorAction::GeneratePrimaries 81 void PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
79 { 82 {
80 // In order to avoid dependence of PrimaryGe 83 // In order to avoid dependence of PrimaryGeneratorAction
81 // on DetectorConstruction class we get worl 84 // on DetectorConstruction class we get world volume
82 // from G4LogicalVolumeStore 85 // from G4LogicalVolumeStore
83 // 86 //
84 G4double boundXHalfLength = 0; 87 G4double boundXHalfLength = 0;
85 G4double boundYHalfLength = 0; 88 G4double boundYHalfLength = 0;
86 G4double boundZHalfLength = 0; 89 G4double boundZHalfLength = 0;
87 90
88 G4VPhysicalVolume* boundPV = G4PhysicalVolum << 91 G4VPhysicalVolume* boundPV
>> 92 = G4PhysicalVolumeStore::GetInstance()->GetVolume("boundingPV");
89 93
90 G4ThreeVector boundPos; 94 G4ThreeVector boundPos;
91 if (boundPV) { << 95 if ( boundPV )
>> 96 {
92 boundPos = boundPV->GetTranslation(); 97 boundPos = boundPV->GetTranslation();
93 } 98 }
94 99
95 G4LogicalVolume* boundLV = G4LogicalVolumeSt << 100 G4LogicalVolume* boundLV
>> 101 = G4LogicalVolumeStore::GetInstance()->GetVolume("BoundingLV");
96 102
97 G4Box* boundBox = 0; 103 G4Box* boundBox = 0;
98 if (boundLV) { << 104 if ( boundLV )
99 boundBox = dynamic_cast<G4Box*>(boundLV->G << 105 {
>> 106 boundBox = dynamic_cast< G4Box*>(boundLV->GetSolid());
100 } 107 }
101 108
102 if (boundBox) { << 109 if ( boundBox )
103 boundXHalfLength = boundBox->GetXHalfLengt << 110 {
104 boundYHalfLength = boundBox->GetYHalfLengt << 111 boundXHalfLength = boundBox->GetXHalfLength();
>> 112 boundYHalfLength = boundBox->GetYHalfLength();
105 boundZHalfLength = boundBox->GetZHalfLengt 113 boundZHalfLength = boundBox->GetZHalfLength();
106 114
107 // Set gun position 115 // Set gun position
108 // Select a starting position on a sphere 116 // Select a starting position on a sphere including the target volume
109 // 117 //
110 G4double radius = << 118 G4double radius = std::sqrt(boundXHalfLength*boundXHalfLength+
111 std::sqrt(boundXHalfLength * boundXHalfL << 119 boundYHalfLength*boundYHalfLength+
112 + boundZHalfLength * boundZHal << 120 boundZHalfLength*boundZHalfLength);
113 G4double cosTheta = 2 * G4UniformRand() - << 121 G4double cosTheta = 2*G4UniformRand()-1;
114 G4double sinTheta = std::sqrt(1. - cosThet << 122 G4double sinTheta = std::sqrt(1.-cosTheta*cosTheta);
115 G4double phi = twopi * G4UniformRand(); << 123 G4double phi = twopi*G4UniformRand();
116 << 124
117 G4ThreeVector positionStart(boundPos.x() + << 125 G4ThreeVector positionStart(boundPos.x()+radius*sinTheta*std::cos(phi),
118 boundPos.y() + << 126 boundPos.y()+radius*sinTheta*std::sin(phi),
119 boundPos.z() + << 127 boundPos.z()+radius*cosTheta);
120 128
121 fpParticleGun->SetParticlePosition(positio 129 fpParticleGun->SetParticlePosition(positionStart);
122 130
123 // Set gun direction 131 // Set gun direction
124 // To compute the direction, select a poin 132 // To compute the direction, select a point inside the target volume
125 // 133 //
126 G4ThreeVector positionDir(boundPos.x() + b << 134 G4ThreeVector positionDir(
127 boundPos.y() + b << 135 boundPos.x()+boundXHalfLength*(2*G4UniformRand()-1),
128 boundPos.z() + b << 136 boundPos.y()+boundYHalfLength*(2*G4UniformRand()-1),
>> 137 boundPos.z()+boundZHalfLength*(2*G4UniformRand()-1));
129 138
130 fpParticleGun->SetParticleMomentumDirectio << 139 fpParticleGun->SetParticleMomentumDirection(
>> 140 (positionDir-positionStart).unit());
131 } 141 }
132 else { << 142 else
>> 143 {
133 G4cerr << "Bounding volume not found." << 144 G4cerr << "Bounding volume not found." << G4endl;
134 G4cerr << "Default particle kinematic used 145 G4cerr << "Default particle kinematic used" << G4endl;
135 } << 146 }
136 147
137 fpParticleGun->GeneratePrimaryVertex(anEvent 148 fpParticleGun->GeneratePrimaryVertex(anEvent);
138 } 149 }
139 150