Geant4  10.03.p03
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
XPrimaryGeneratorAction.cc
Go to the documentation of this file.
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 //
28 //
29 // $Id: XPrimaryGeneratorAction.cc 76246 2013-11-08 11:17:29Z gcosmo $
30 //
31 
33 
34 #include "G4Event.hh"
35 #include "G4ParticleGun.hh"
36 #include "G4RandomDirection.hh"
37 
38 #include "G4PhononTransFast.hh"
39 #include "G4PhononTransSlow.hh"
40 #include "G4PhononLong.hh"
41 
42 #include "G4SystemOfUnits.hh"
43 
44 using namespace std;
45 
47 {
48  G4int n_particle = 1;
49  fParticleGun = new G4ParticleGun(n_particle);
50 
51  // default particle kinematic
52  fParticleGun->SetParticleDefinition(G4PhononLong::PhononDefinition());
53  fParticleGun->SetParticleMomentumDirection(G4RandomDirection());
54  fParticleGun->SetParticlePosition(G4ThreeVector(0.0,0.0,0.0));
55  fParticleGun->SetParticleEnergy(1e-4*eV);
56 }
57 
58 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
59 
60 
62 {
63  delete fParticleGun;
64 }
65 
66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
67 
68 
70 {
71 
72  fParticleGun->SetParticleMomentumDirection(G4RandomDirection());
73 
74  G4double selector = G4UniformRand();
75  if(selector<0.53539) {
76  fParticleGun->SetParticleDefinition(G4PhononTransSlow::PhononDefinition());
77  }
78  else if(selector<0.90217) {
79  fParticleGun->SetParticleDefinition(G4PhononTransFast::PhononDefinition());
80  }
81  else {
82  fParticleGun->SetParticleDefinition(G4PhononLong::PhononDefinition());
83  }
84 
85  //Set phonon energy.
86  //Do not set momentum direction here.
87  //Any momentum direction set here will be overwritten
88  //by XPhononStackingAction::ClassifyNewTrack
89  fParticleGun->SetParticleEnergy(0.0075*eV);
90  fParticleGun->GeneratePrimaryVertex(anEvent);
91 
92 }
93 
94 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
95 
96 
static G4PhononTransSlow * PhononDefinition()
CLHEP::Hep3Vector G4ThreeVector
virtual void GeneratePrimaries(G4Event *)
G4ThreeVector G4RandomDirection()
int G4int
Definition: G4Types.hh:78
#define G4UniformRand()
Definition: Randomize.hh:97
static G4PhononLong * PhononDefinition()
Definition: G4PhononLong.cc:74
static constexpr double eV
Definition: G4SIunits.hh:215
static G4PhononTransFast * PhononDefinition()
Definition of the XPrimaryGeneratorAction class.
double G4double
Definition: G4Types.hh:76