| Geant4 Cross Reference |
1 // 1
2 // *******************************************
3 // * License and Disclaimer
4 // *
5 // * The Geant4 software is copyright of th
6 // * the Geant4 Collaboration. It is provided
7 // * conditions of the Geant4 Software License
8 // * LICENSE and available at http://cern.ch/
9 // * include a list of copyright holders.
10 // *
11 // * Neither the authors of this software syst
12 // * institutes,nor the agencies providing fin
13 // * work make any representation or warran
14 // * regarding this software system or assum
15 // * use. Please see the license in the file
16 // * for the full disclaimer and the limitatio
17 // *
18 // * This code implementation is the result
19 // * technical work of the GEANT4 collaboratio
20 // * By using, copying, modifying or distri
21 // * any work based on the software) you ag
22 // * use in resulting scientific publicati
23 // * acceptance of all terms of the Geant4 Sof
24 // *******************************************
25 //
26 //
27 // -------------------------------------------
28 //
29 // GEANT4 Class file
30 //
31 //
32 // File name: G4DeltaAngleFreeScat
33 //
34 // Author: Vladimir Ivantcheko
35 //
36 // Creation date: 23 August 2013
37 //
38 // Modifications:
39 //
40 // Class Description:
41 //
42 // Delta-electron Angular Distribution Generat
43 //
44 // Class Description: End
45 //
46 // -------------------------------------------
47 //
48
49 #include "G4DeltaAngleFreeScat.hh"
50 #include "G4PhysicalConstants.hh"
51 #include "Randomize.hh"
52
53 using namespace std;
54
55 G4DeltaAngleFreeScat::G4DeltaAngleFreeScat(con
56 : G4VEmAngularDistribution("deltaFree")
57 {}
58
59 G4DeltaAngleFreeScat::~G4DeltaAngleFreeScat()
60
61 G4ThreeVector&
62 G4DeltaAngleFreeScat::SampleDirection(const G4
63 G4double kinEnergyFinal, G4int,
64 const G4Material*)
65 {
66 G4double deltaMomentum =
67 sqrt(kinEnergyFinal*(kinEnergyFinal + 2*el
68
69 G4double costet = kinEnergyFinal*(dp->GetTot
70 (deltaMomentum * dp->GetTotalMomentum());
71
72 G4double phi = G4UniformRand()*twopi;
73 G4double sintet = sqrt((1 - costet)*(1 + cos
74
75 fLocalDirection.set(sintet*cos(phi), sintet*
76 fLocalDirection.rotateUz(dp->GetMomentumDire
77
78 return fLocalDirection;
79 }
80
81 void G4DeltaAngleFreeScat::PrintGeneratorInfor
82 {}
83