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