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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 *
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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 *
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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 *
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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 *
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22 // * use in resulting scientific publications, and indicate your *
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24 // ********************************************************************
25 //
26 // Derived from
27 // https://twiki.cern.ch/twiki/bin/view/Geant4/QuickMigrationGuideForGeant4V10
28 // Courtesy of A. Dotti
29 //
30 // This example is provided by the Geant4-DNA collaboration
31 // Any report or published results obtained using the Geant4-DNA software
32 // shall cite the following Geant4-DNA collaboration publications:
33 // Med. Phys. 45 (2018) e722-e739
34 // Phys. Med. 31 (2015) 861-874
35 // Med. Phys. 37 (2010) 4692-4708
36 // Int. J. Model. Simul. Sci. Comput. 1 (2010) 157–178
37 //
38 // The Geant4-DNA web site is available at http://geant4-dna.org
39 //
40 /// \file medical/dna/svalue/src/MyPrimaryGeneratorActionFromFile.cc
41 /// \brief Implementation of the MyPrimaryGeneratorActionFromFile class
42
43 #include "MyPrimaryGeneratorActionFromFile.hh"
44
45 #include "DetectorConstruction.hh"
46 #include "MyFileReader.hh"
47
48 #include "G4RandomDirection.hh"
49 #include "G4RunManager.hh"
50 #include "G4StateManager.hh"
51 #include "G4SystemOfUnits.hh"
52
53 namespace
54 {
55 G4Mutex myPrimGenMutex = G4MUTEX_INITIALIZER;
56 }
57
58 MyFileReader* MyPrimaryGeneratorActionFromFile::fileReader = 0;
59
60 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
61
62 MyPrimaryGeneratorActionFromFile::MyPrimaryGeneratorActionFromFile()
63 : G4VUserPrimaryGeneratorAction(), G4VStateDependent(), fParticleGun(0), fDetector(0)
64 {
65 fDetector = dynamic_cast<const DetectorConstruction*>(
66 G4RunManager::GetRunManager()->GetUserDetectorConstruction());
67
68 G4AutoLock lock(&myPrimGenMutex);
69
70 if (!fileReader) fileReader = new MyFileReader();
71
72 fParticleGun = new G4ParticleGun(1);
73 G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
74 G4ParticleDefinition* particle = particleTable->FindParticle("e-");
75 fParticleGun->SetParticleDefinition(particle);
76 fParticleGun->SetParticleEnergy(10. * MeV);
77 }
78
79 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
80
81 MyPrimaryGeneratorActionFromFile::~MyPrimaryGeneratorActionFromFile()
82 {
83 G4AutoLock lock(&myPrimGenMutex);
84 if (fileReader) {
85 delete fileReader;
86 fileReader = 0;
87 }
88
89 G4StateManager::GetStateManager()->DeregisterDependent(this);
90 if (fParticleGun) delete fParticleGun;
91 }
92
93 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
94
95 void MyPrimaryGeneratorActionFromFile::GeneratePrimaries(G4Event* anEvent)
96 {
97 // Energy is read from file
98
99 G4double nrj = 0;
100 if (fileReader) {
101 G4AutoLock lock(&myPrimGenMutex);
102 nrj = fileReader->GetAnEvent();
103 }
104 fParticleGun->SetParticleEnergy(nrj * eV);
105
106 //
107 G4double thickness = fDetector->GetCytoThickness();
108 G4double radius = fDetector->GetNuclRadius();
109
110 G4double rx = 1 * m;
111 G4double ry = 1 * m;
112 G4double rz = 1 * m;
113 G4double myRadius = 0;
114
115 do {
116 rx = (2 * G4UniformRand() - 1) * (radius + thickness) * 1.01;
117 ry = (2 * G4UniformRand() - 1) * (radius + thickness) * 1.01;
118 rz = (2 * G4UniformRand() - 1) * (radius + thickness) * 1.01;
119 myRadius = std::sqrt(rx * rx + ry * ry + rz * rz);
120
121 } while (myRadius > radius + thickness || myRadius < radius);
122
123 fParticleGun->SetParticlePosition(G4ThreeVector(rx, ry, rz));
124 fParticleGun->SetParticleMomentumDirection(G4RandomDirection());
125
126 // G4cout << "---> EVENT ID=" << anEvent->GetEventID()+1 << G4endl;
127 // G4cout << "---> energy/eV=" << nrj << G4endl;
128
129 fParticleGun->GeneratePrimaryVertex(anEvent);
130 }
131
132 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
133
134 G4bool MyPrimaryGeneratorActionFromFile::Notify(G4ApplicationState requestedState)
135 {
136 if (requestedState == G4State_Idle) {
137 if (fParticleGun != 0) return true;
138
139 fParticleGun = new G4ParticleGun(1);
140
141 // Define default primary particle
142
143 G4ParticleDefinition* particle = G4ParticleTable::GetParticleTable()->FindParticle("e-");
144 fParticleGun->SetParticleDefinition(particle);
145 fParticleGun->SetParticleEnergy(300 * eV);
146 fParticleGun->SetParticlePosition(G4ThreeVector());
147 fParticleGun->SetParticleMomentumDirection(G4ThreeVector(1, 0, 0));
148 }
149
150 return true;
151 }
152