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 * |
---|
7 | // * conditions of the Geant4 Software License, included in the file * |
---|
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 * |
---|
12 | // * institutes,nor the agencies providing financial support for this * |
---|
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 * |
---|
16 | // * for the full disclaimer and the limitation of liability. * |
---|
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 * |
---|
21 | // * any work based on the software) you agree to acknowledge its * |
---|
22 | // * use in resulting scientific publications, and indicate your * |
---|
23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
24 | // ******************************************************************** |
---|
25 | // |
---|
26 | // |
---|
27 | // $Id: G3toG4PrimaryGeneratorAction.cc,v 1.5 2006/06/29 17:21:18 gunter Exp $ |
---|
28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
---|
29 | // |
---|
30 | |
---|
31 | #include "globals.hh" |
---|
32 | #include "Randomize.hh" |
---|
33 | #include "G3toG4PrimaryGeneratorAction.hh" |
---|
34 | #include "G4Event.hh" |
---|
35 | #include "G4ParticleGun.hh" |
---|
36 | #include "G4ParticleTable.hh" |
---|
37 | #include "G4ParticleDefinition.hh" |
---|
38 | |
---|
39 | G3toG4PrimaryGeneratorAction::G3toG4PrimaryGeneratorAction(){ |
---|
40 | G4int n_particle = 1; |
---|
41 | particleGun = new G4ParticleGun(n_particle); |
---|
42 | |
---|
43 | G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable(); |
---|
44 | G4String particleName; |
---|
45 | G4ParticleDefinition* particle |
---|
46 | = particleTable->FindParticle(particleName="chargedgeantino"); |
---|
47 | particleGun->SetParticleDefinition(particle); |
---|
48 | G4ThreeVector direction(0, 0, 1); |
---|
49 | particleGun->SetParticleMomentumDirection(direction.unit()); |
---|
50 | particleGun->SetParticleEnergy(1.*GeV); |
---|
51 | particleGun->SetParticlePosition(G4ThreeVector(0.*cm, 0.*cm,0.*cm)); |
---|
52 | } |
---|
53 | |
---|
54 | G3toG4PrimaryGeneratorAction::~G3toG4PrimaryGeneratorAction(){ |
---|
55 | delete particleGun; |
---|
56 | } |
---|
57 | |
---|
58 | void |
---|
59 | G3toG4PrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent){ |
---|
60 | //G4ThreeVector direction = GetRandomDirection(); |
---|
61 | //particleGun->SetParticleMomentumDirection( direction.unit() ) ; |
---|
62 | G4cout << ">>>>>>>> Primary direction: " |
---|
63 | << particleGun->GetParticleMomentumDirection() << G4endl; |
---|
64 | particleGun->GeneratePrimaryVertex(anEvent); |
---|
65 | } |
---|
66 | |
---|
67 | G4ThreeVector |
---|
68 | G3toG4PrimaryGeneratorAction::GetRandomDirection() { |
---|
69 | |
---|
70 | G4ThreeVector retval; |
---|
71 | |
---|
72 | G4double CosTheta; |
---|
73 | G4double SinTheta; |
---|
74 | |
---|
75 | G4double Phi; |
---|
76 | G4double SinPhi; |
---|
77 | G4double CosPhi; |
---|
78 | |
---|
79 | G4double rand; |
---|
80 | |
---|
81 | rand = G4UniformRand(); |
---|
82 | |
---|
83 | CosTheta = 2.0*rand -1.0; |
---|
84 | SinTheta = std::sqrt (1.-CosTheta*CosTheta); |
---|
85 | rand = G4UniformRand(); |
---|
86 | Phi = twopi*rand; |
---|
87 | SinPhi = std::sin (Phi); |
---|
88 | CosPhi = std::cos (Phi); |
---|
89 | retval.setX(SinTheta*CosPhi); |
---|
90 | retval.setY(SinTheta*SinPhi); |
---|
91 | retval.setZ(CosTheta); |
---|
92 | |
---|
93 | return retval; |
---|
94 | } |
---|
95 | |
---|