| Geant4 Cross Reference |
1 // 1 //
2 // ******************************************* 2 // ********************************************************************
3 // * License and Disclaimer 3 // * License and Disclaimer *
4 // * 4 // * *
5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided 6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License 7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. 9 // * include a list of copyright holders. *
10 // * 10 // * *
11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assum 14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file 15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. *
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 *
22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. *
24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // Previous authors: G. Guerrieri, S. Guatelli << 26 // Authors: S. Guatelli and M. G. Pia, INFN Genova, Italy
27 // Authors (since 2007): S. Guatelli, Universi << 27 //
>> 28 // Based on code developed by the undergraduate student G. Guerrieri
>> 29 // Note: this is a preliminary beta-version of the code; an improved
>> 30 // version will be distributed in the next Geant4 public release, compliant
>> 31 // with the design in a forthcoming publication, and subject to a
>> 32 // design and code review.
28 // 33 //
29 #include "G4HumanPhantomPrimaryGeneratorAction 34 #include "G4HumanPhantomPrimaryGeneratorAction.hh"
>> 35 #include "G4HumanPhantomConstruction.hh"
>> 36 #include "G4HumanPhantomPrimaryGeneratorMessenger.hh"
>> 37
30 #include "globals.hh" 38 #include "globals.hh"
31 #include "G4SystemOfUnits.hh" 39 #include "G4SystemOfUnits.hh"
32 #include "G4Event.hh" 40 #include "G4Event.hh"
33 #include "G4GeneralParticleSource.hh" << 41 #include "G4ParticleGun.hh"
34 #include "G4ParticleTable.hh" 42 #include "G4ParticleTable.hh"
35 #include "G4ParticleDefinition.hh" 43 #include "G4ParticleDefinition.hh"
36 44
37 #include "G4RunManager.hh" 45 #include "G4RunManager.hh"
38 #include "G4ios.hh" 46 #include "G4ios.hh"
39 47
40 G4HumanPhantomPrimaryGeneratorAction::G4HumanP 48 G4HumanPhantomPrimaryGeneratorAction::G4HumanPhantomPrimaryGeneratorAction()
>> 49 :beamKind("beamAlongZ"),worldLength(200.)
41 { 50 {
42 particleGun = new G4GeneralParticleSource(); << 51 G4int n_particle = 1;
>> 52
>> 53 messenger= new G4HumanPhantomPrimaryGeneratorMessenger(this);
>> 54
>> 55 particleGun = new G4ParticleGun(n_particle);
>> 56
>> 57 probability.push_back(0.1667);
>> 58 probability.push_back(0.1667);
>> 59 probability.push_back(0.1667);
>> 60 probability.push_back(0.1667);
>> 61 probability.push_back(0.1666);
>> 62 probability.push_back(0.1666);
>> 63
>> 64 // Default Particle
>> 65 G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
>> 66
>> 67 particleGun->SetParticleDefinition(particleTable->FindParticle("geantino"));
>> 68 particleGun->SetParticleEnergy(100.*MeV);
43 } 69 }
44 70
45 G4HumanPhantomPrimaryGeneratorAction::~G4Human 71 G4HumanPhantomPrimaryGeneratorAction::~G4HumanPhantomPrimaryGeneratorAction()
46 { 72 {
47 delete particleGun; 73 delete particleGun;
>> 74 delete messenger;
48 } 75 }
49 76
50 void G4HumanPhantomPrimaryGeneratorAction::Gen 77 void G4HumanPhantomPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent)
51 { 78 {
52 particleGun -> GeneratePrimaryVertex(anEvent << 79 if (beamKind == "beamAlongZ") GenerateBeamAlongZ();
>> 80 if (beamKind == "beamAlongY") GenerateBeamAlongY();
>> 81 if (beamKind == "beamAlongX") GenerateBeamAlongX();
>> 82 if (beamKind == "isotropicFlux") GenerateIsotropicFlux();
>> 83
>> 84 particleGun->SetParticlePosition(G4ThreeVector(x0, y0,z0));
>> 85 particleGun->GeneratePrimaryVertex(anEvent);
>> 86 }
>> 87
>> 88 void G4HumanPhantomPrimaryGeneratorAction::GenerateBeamAlongZ()
>> 89 {
>> 90 z0 = 0.5*(worldLength)*cm;
>> 91 y0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 92 x0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 93
>> 94 //z0 = 0.5*(worldLength)*cm;
>> 95 //y0 = 50. * cm + 5.*(G4UniformRand()-0.5)*cm;
>> 96 //x0 = 10.*(G4UniformRand()-0.5)*cm;
>> 97
>> 98 G4ThreeVector direction(0.,0.,-1.);
>> 99
>> 100
>> 101 particleGun->SetParticleMomentumDirection(direction);
>> 102 }
>> 103
>> 104 void G4HumanPhantomPrimaryGeneratorAction::GenerateBeamAlongX()
>> 105 {
>> 106 x0 = -0.5*(worldLength)*cm;
>> 107 y0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 108 z0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 109
>> 110 G4ThreeVector direction(1.,0.,0.);
>> 111 particleGun->SetParticleMomentumDirection(direction);
>> 112 }
>> 113 void G4HumanPhantomPrimaryGeneratorAction::GenerateBeamAlongY()
>> 114 {
>> 115 y0 = 0.5*(worldLength)*cm;
>> 116 x0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 117 z0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 118
>> 119 G4ThreeVector direction(0.,-1.,0.);
>> 120 particleGun->SetParticleMomentumDirection(direction);
>> 121 }
>> 122
>> 123 void G4HumanPhantomPrimaryGeneratorAction::GenerateIsotropicFlux()
>> 124 {
>> 125 G4double random = G4UniformRand();
>> 126 G4double sum = 0.;
>> 127 G4int i = 0;
>> 128
>> 129 while(sum<random){sum += probability[i]; i++;}
>> 130
>> 131 if(i==1)
>> 132 {
>> 133 z0 = -0.5*(worldLength-2.)*cm;
>> 134 y0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 135 x0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 136 }
>> 137
>> 138 if(i==2)
>> 139 {
>> 140 y0 = -0.5*(worldLength-2.)*cm;
>> 141 z0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 142 x0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 143 }
>> 144
>> 145 if(i==3)
>> 146 {
>> 147 x0 = -0.5*(worldLength-2.)*cm;
>> 148 z0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 149 y0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 150 }
>> 151
>> 152 if (i==4)
>> 153 {
>> 154 z0 = 0.5*(worldLength-2.)*cm;
>> 155 y0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 156 x0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 157 }
>> 158
>> 159 if(i==5)
>> 160 {
>> 161 y0 = 0.5*(worldLength-2.)*cm;
>> 162 z0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 163 x0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 164 }
>> 165
>> 166 if(i==6)
>> 167 {
>> 168 x0 = 0.5*(worldLength-2.)*cm;
>> 169 z0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 170 y0 = (worldLength)*(G4UniformRand()-0.5)*cm;
>> 171 }
>> 172
>> 173 G4double a,b,c;
>> 174 G4double n;
>> 175 do{
>> 176 a = (G4UniformRand()-0.5)/0.5;
>> 177 b = (G4UniformRand()-0.5)/0.5;
>> 178 c = (G4UniformRand()-0.5)/0.5;
>> 179 n = a*a+b*b+c*c;
>> 180 }while(n > 1 || n == 0.0);
>> 181 n = std::sqrt(n);
>> 182 a /= n;
>> 183 b /= n;
>> 184 c /= n;
>> 185
>> 186 G4ThreeVector direction(a,b,c);
>> 187 particleGun->SetParticleMomentumDirection(direction);
>> 188 }
>> 189
>> 190 void G4HumanPhantomPrimaryGeneratorAction::SetBeam(G4String beam)
>> 191 {
>> 192 if((beam == "beamAlongZ")||(beam == "beamAlongX")||
>> 193 (beam == "beamAlongY")||(beam == "isotropicFlux")) beamKind = beam;
>> 194
>> 195 else G4cout<<"This option is not valid "<<
>> 196 "---> beamAlongZ/beamAlongY/beamAlongX/isotropicFlux"
>> 197 <<G4endl;
53 } 198 }
54 199
55 200