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25 // 25 //
26 /// \file eventgenerator/particleGun/src/Prima 26 /// \file eventgenerator/particleGun/src/PrimaryGeneratorAction3.cc
27 /// \brief Implementation of the PrimaryGenera 27 /// \brief Implementation of the PrimaryGeneratorAction3 class
28 // 28 //
29 // 29 //
30 // << 30 // $Id: PrimaryGeneratorAction3.cc 68024 2013-03-13 13:42:01Z gcosmo $
31 //....oooOO0OOooo........oooOO0OOooo........oo << 31 //
32 //....oooOO0OOooo........oooOO0OOooo........oo 32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 33 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
33 34
34 #include "PrimaryGeneratorAction3.hh" 35 #include "PrimaryGeneratorAction3.hh"
35 <<
36 #include "PrimaryGeneratorAction.hh" 36 #include "PrimaryGeneratorAction.hh"
37 37
38 #include "G4Event.hh" 38 #include "G4Event.hh"
39 #include "G4ParticleDefinition.hh" <<
40 #include "G4ParticleGun.hh" 39 #include "G4ParticleGun.hh"
41 #include "G4ParticleTable.hh" 40 #include "G4ParticleTable.hh"
>> 41 #include "G4ParticleDefinition.hh"
42 #include "G4PhysicalConstants.hh" 42 #include "G4PhysicalConstants.hh"
43 #include "G4SystemOfUnits.hh" 43 #include "G4SystemOfUnits.hh"
44 #include "Randomize.hh" 44 #include "Randomize.hh"
45 45
46 //....oooOO0OOooo........oooOO0OOooo........oo 46 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
47 47
48 PrimaryGeneratorAction3::PrimaryGeneratorActio << 48 PrimaryGeneratorAction3::PrimaryGeneratorAction3(G4ParticleGun* gun)
49 { << 49 : fParticleGun(gun)
>> 50 {
50 // direction 51 // direction
51 // 52 //
52 G4double theta = 90 * deg, phi = 45 * deg; << 53 G4double theta = 90*deg, phi = 45*deg;
53 fNewUz = G4ThreeVector(std::sin(theta) * std << 54 fNewUz = G4ThreeVector(std::sin(theta)*std::cos(phi),
>> 55 std::sin(theta)*std::sin(phi),
54 std::cos(theta)); 56 std::cos(theta));
55 << 57
56 fAlphaMax = 15 * deg; << 58 fAlphaMax = 15*deg;
57 } 59 }
58 60
59 //....oooOO0OOooo........oooOO0OOooo........oo 61 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
60 62
>> 63 PrimaryGeneratorAction3::~PrimaryGeneratorAction3()
>> 64 { }
>> 65
>> 66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 67
61 void PrimaryGeneratorAction3::GeneratePrimarie 68 void PrimaryGeneratorAction3::GeneratePrimaries(G4Event* anEvent)
62 { 69 {
63 // particle direction uniform around fNewUz << 70 //particle direction uniform around fNewUz axis
64 // 71 //
65 // 1- in World frame << 72 //1- in World frame
66 // cosAlpha uniform in [cos(0), cos(fAlphaMa << 73 //cosAlpha uniform in [cos(0), cos(fAlphaMax)]
67 G4double cosAlpha = 1. - G4UniformRand() * ( << 74 G4double cosAlpha = 1. - G4UniformRand()*(1.- std::cos(fAlphaMax));
68 G4double sinAlpha = std::sqrt(1. - cosAlpha << 75 G4double sinAlpha = std::sqrt(1. - cosAlpha*cosAlpha);
69 G4double psi = twopi * G4UniformRand(); // << 76 G4double psi = twopi*G4UniformRand(); //psi uniform in [0, 2*pi]
70 G4ThreeVector dir(sinAlpha * std::cos(psi), << 77 G4ThreeVector dir(sinAlpha*std::cos(psi),sinAlpha*std::sin(psi),cosAlpha);
71 << 78
72 // 2- rotate dir (rotateUz transforms uz t << 79 //2- rotate dir (rotateUz transforms uz to fNewUz)
73 dir.rotateUz(fNewUz); << 80 dir.rotateUz(fNewUz);
74 81
75 fParticleGun->SetParticleMomentumDirection(d 82 fParticleGun->SetParticleMomentumDirection(dir);
76 << 83
77 // set energy << 84 //set energy
78 // 85 //
79 fParticleGun->SetParticleEnergy(1 * MeV); << 86 fParticleGun->SetParticleEnergy(1*MeV);
80 87
81 // create vertex << 88 //create vertex
82 // << 89 //
83 fParticleGun->GeneratePrimaryVertex(anEvent) 90 fParticleGun->GeneratePrimaryVertex(anEvent);
84 } 91 }
85 92
86 //....oooOO0OOooo........oooOO0OOooo........oo 93 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
87 94