Geant4  10.02.p02
G4PhotoElectricEffect.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 //
26 // $Id: G4PhotoElectricEffect.cc 84598 2014-10-17 07:39:15Z gcosmo $
27 //
28 //
29 //------------------ G4PhotoElectricEffect physics process ---------------------
30 // by Michel Maire, 24 May 1996
31 //
32 // 12-06-96, Added SelectRandomAtom() method, by M.Maire
33 // 21-06-96, SetCuts implementation, M.Maire
34 // 17-09-96, PartialSumSigma(i)
35 // split of ComputeBindingEnergy, M.Maire
36 // 08-01-97, crossection table + meanfreepath table, M.Maire
37 // 13-03-97, adapted for the new physics scheme, M.Maire
38 // 28-03-97, protection in BuildPhysicsTable, M.Maire
39 // 04-06-98, in DoIt, secondary production condition:
40 // range > std::min(threshold,safety)
41 // 13-08-98, new methods SetBining() PrintInfo()
42 // 17-11-98, use table of Atomic shells in PostStepDoIt
43 // 06-01-99, use Sandia crossSection below 50 keV, V.Grichine mma
44 // 20-05-99, protection against very low energy photons ,L.Urban
45 // 08-06-99, removed this above protection from the DoIt. mma
46 // 21-06-00, in DoIt, killing photon: aParticleChange.SetEnergyChange(0.); mma
47 // 22-06-00, in DoIt, absorbe very low energy photon (back to 20-05-99); mma
48 // 22-02-01, back to 08-06-99 after correc in SandiaTable (materials-V03-00-05)
49 // 28-05-01, V.Ivanchenko minor changes to provide ANSI -wall compilation
50 // 13-07-01, DoIt: suppression of production cut of the electron (mma)
51 // 06-08-01, new methods Store/Retrieve PhysicsTable (mma)
52 // 06-08-01, BuildThePhysicsTable() called from constructor (mma)
53 // 17-09-01, migration of Materials to pure STL (mma)
54 // 20-09-01, DoIt: fminimalEnergy of generated electron = 1*eV (mma)
55 // 01-10-01, come back to BuildPhysicsTable(const G4ParticleDefinition&)
56 // 10-01-02, moved few function from icc to cc
57 // 17-04-02, Keep only Sandia crossSections. Remove BuildPhysicsTables.
58 // Simplify public interface (mma)
59 // 29-04-02, Generate theta angle of the photoelectron from Sauter-Gavrila
60 // distribution (mma)
61 // 15-01-03, photoelectron theta ditribution : return costeta=1 if gamma>5
62 // (helmut burkhardt)
63 // 21-04-05 Migrate to model interface and inherit
64 // from G4VEmProcess (V.Ivanchenko)
65 // 04-05-05, Make class to be default (V.Ivanchenko)
66 // 09-08-06, add SetModel(G4VEmModel*) (mma)
67 // 12-09-06, move SetModel(G4VEmModel*) in G4VEmProcess (mma)
68 // -----------------------------------------------------------------------------
69 
70 #include "G4PhotoElectricEffect.hh"
71 #include "G4SystemOfUnits.hh"
72 #include "G4PEEffectFluoModel.hh"
73 #include "G4Electron.hh"
74 #include "G4EmParameters.hh"
75 
76 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
77 
78 using namespace std;
79 
81  G4ProcessType type):G4VEmProcess (processName, type),
82  isInitialised(false)
83 {
84  SetBuildTableFlag(false);
88 }
89 
90 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
91 
93 {}
94 
95 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
96 
98 {
99  return (&p == G4Gamma::Gamma());
100 }
101 
102 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
103 
105 {
106  if(!isInitialised) {
107  isInitialised = true;
108  if(!EmModel(1)) { SetEmModel(new G4PEEffectFluoModel(),1); }
110  EmModel(1)->SetLowEnergyLimit(param->MinKinEnergy());
112  AddEmModel(1, EmModel(1));
113  }
114 }
115 
116 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
117 
119 {}
120 
121 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4PhotoElectricEffect(const G4String &processName="phot", G4ProcessType type=fElectromagnetic)
virtual void InitialiseProcess(const G4ParticleDefinition *)
G4double MaxKinEnergy() const
void SetBuildTableFlag(G4bool val)
G4VEmModel * EmModel(G4int index=1) const
void SetHighEnergyLimit(G4double)
Definition: G4VEmModel.hh:725
void SetMinKinEnergyPrim(G4double e)
void SetEmModel(G4VEmModel *, G4int index=1)
bool G4bool
Definition: G4Types.hh:79
void SetProcessSubType(G4int)
Definition: G4VProcess.hh:432
G4double MinKinEnergy() const
static G4Gamma * Gamma()
Definition: G4Gamma.cc:86
void AddEmModel(G4int, G4VEmModel *, const G4Region *region=0)
void SetSecondaryParticle(const G4ParticleDefinition *p)
static G4EmParameters * Instance()
static G4Electron * Electron()
Definition: G4Electron.cc:94
static const double keV
Definition: G4SIunits.hh:213
virtual G4bool IsApplicable(const G4ParticleDefinition &)
void SetLowEnergyLimit(G4double)
Definition: G4VEmModel.hh:732
G4ProcessType