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: G4eBremsstrahlung.cc,v 1.56 2009/02/20 12:06:37 vnivanch Exp $ |
---|
27 | // GEANT4 tag $Name: geant4-09-03 $ |
---|
28 | // |
---|
29 | // ------------------------------------------------------------------- |
---|
30 | // |
---|
31 | // GEANT4 Class file |
---|
32 | // |
---|
33 | // |
---|
34 | // File name: G4eBremsstrahlung |
---|
35 | // |
---|
36 | // Author: Michel Maire |
---|
37 | // |
---|
38 | // Creation date: 26.06.1996 |
---|
39 | // |
---|
40 | // Modifications: |
---|
41 | // |
---|
42 | // 26-09-96 extension of the total crosssection above 100 GeV, M.Maire |
---|
43 | // 1-10-96 new type G4OrderedTable; ComputePartialSumSigma(), M.Maire |
---|
44 | // 16-10-96 DoIt() call to the non static GetEnergyCuts(), L.Urban |
---|
45 | // 13-12-96 Sign corrected in grejmax and greject |
---|
46 | // error definition of screenvar, L.Urban |
---|
47 | // 20-03-97 new energy loss+ionisation+brems scheme, L.Urban |
---|
48 | // 07-04-98 remove 'tracking cut' of the diffracted particle, MMa |
---|
49 | // 13-08-98 new methods SetBining() PrintInfo() |
---|
50 | // 03-03-99 Bug fixed in LPM effect, L.Urban |
---|
51 | // 10-02-00 modifications , new e.m. structure, L.Urban |
---|
52 | // 07-08-00 new cross section/en.loss parametrisation, LPM flag , L.Urban |
---|
53 | // 21-09-00 corrections in the LPM implementation, L.Urban |
---|
54 | // 28-05-01 V.Ivanchenko minor changes to provide ANSI -wall compilation |
---|
55 | // 09-08-01 new methods Store/Retrieve PhysicsTable (mma) |
---|
56 | // 17-09-01 migration of Materials to pure STL (mma) |
---|
57 | // 21-09-01 completion of RetrievePhysicsTable() (mma) |
---|
58 | // 29-10-01 all static functions no more inlined (mma) |
---|
59 | // 08-11-01 particleMass becomes a local variable |
---|
60 | // 30-04-02 V.Ivanchenko update to new design |
---|
61 | // 23-12-02 Change interface in order to move to cut per region (VI) |
---|
62 | // 26-12-02 Secondary production moved to derived classes (VI) |
---|
63 | // 23-05-03 Define default integral + BohrFluctuations (V.Ivanchenko) |
---|
64 | // 08-08-03 STD substitute standard (V.Ivanchenko) |
---|
65 | // 12-11-03 G4EnergyLossSTD -> G4EnergyLossProcess (V.Ivanchenko) |
---|
66 | // 04-11-04 add gamma threshold (V.Ivanchenko) |
---|
67 | // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko) |
---|
68 | // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko) |
---|
69 | // 22-05-06 Use gammaThreshold from manager (V.Ivantchenko) |
---|
70 | // 15-01-07 use SetEmModel() from G4VEnergyLossProcess (mma) |
---|
71 | // use RelEmModel above 1GeV (AS & VI) |
---|
72 | // 13-11-08 reenable LPM switch (A.Schaelicke) |
---|
73 | // ------------------------------------------------------------------- |
---|
74 | // |
---|
75 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
76 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
77 | |
---|
78 | #include "G4eBremsstrahlung.hh" |
---|
79 | #include "G4Gamma.hh" |
---|
80 | #include "G4eBremsstrahlungModel.hh" |
---|
81 | #include "G4eBremsstrahlungRelModel.hh" |
---|
82 | #include "G4UnitsTable.hh" |
---|
83 | #include "G4LossTableManager.hh" |
---|
84 | |
---|
85 | #include "G4ProductionCutsTable.hh" |
---|
86 | #include "G4MaterialCutsCouple.hh" |
---|
87 | |
---|
88 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
89 | |
---|
90 | using namespace std; |
---|
91 | |
---|
92 | G4eBremsstrahlung::G4eBremsstrahlung(const G4String& name): |
---|
93 | G4VEnergyLossProcess(name), |
---|
94 | isInitialised(false) |
---|
95 | { |
---|
96 | SetProcessSubType(fBremsstrahlung); |
---|
97 | } |
---|
98 | |
---|
99 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
100 | |
---|
101 | G4eBremsstrahlung::~G4eBremsstrahlung() |
---|
102 | {} |
---|
103 | |
---|
104 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
105 | |
---|
106 | G4bool G4eBremsstrahlung::IsApplicable(const G4ParticleDefinition& p) |
---|
107 | { |
---|
108 | return (&p == G4Electron::Electron() || &p == G4Positron::Positron()); |
---|
109 | } |
---|
110 | |
---|
111 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
112 | |
---|
113 | void G4eBremsstrahlung::InitialiseEnergyLossProcess( |
---|
114 | const G4ParticleDefinition* p, |
---|
115 | const G4ParticleDefinition*) |
---|
116 | { |
---|
117 | if(!isInitialised) { |
---|
118 | particle = p; |
---|
119 | SetSecondaryParticle(G4Gamma::Gamma()); |
---|
120 | SetIonisation(false); |
---|
121 | |
---|
122 | if (!EmModel(1)) SetEmModel(new G4eBremsstrahlungModel(), 1); |
---|
123 | if (!EmModel(2)) SetEmModel(new G4eBremsstrahlungRelModel(), 2); |
---|
124 | |
---|
125 | EmModel(1)->SetLowEnergyLimit(MinKinEnergy()); |
---|
126 | EmModel(1)->SetHighEnergyLimit(EmModel(2)->LowEnergyLimit()); |
---|
127 | EmModel(2)->SetHighEnergyLimit(MaxKinEnergy()); |
---|
128 | |
---|
129 | G4VEmFluctuationModel* fm = 0; |
---|
130 | AddEmModel(1, EmModel(1), fm); |
---|
131 | AddEmModel(2, EmModel(2), fm); |
---|
132 | isInitialised = true; |
---|
133 | } |
---|
134 | G4LossTableManager* man = G4LossTableManager::Instance(); |
---|
135 | G4double eth = man->BremsstrahlungTh(); |
---|
136 | EmModel(1)->SetSecondaryThreshold(eth); |
---|
137 | EmModel(2)->SetSecondaryThreshold(eth); |
---|
138 | |
---|
139 | // Only high energy model LMP flag is ON/OFF |
---|
140 | EmModel(1)->SetLPMFlag(false); |
---|
141 | EmModel(2)->SetLPMFlag(man->LPMFlag()); |
---|
142 | } |
---|
143 | |
---|
144 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|
145 | |
---|
146 | void G4eBremsstrahlung::PrintInfo() |
---|
147 | { |
---|
148 | if(EmModel(1)) { |
---|
149 | G4LossTableManager* man = G4LossTableManager::Instance(); |
---|
150 | G4double eth = man->BremsstrahlungTh(); |
---|
151 | G4cout << " LPM flag: " << man->LPMFlag() << " for E > " |
---|
152 | << EmModel(1)->HighEnergyLimit()/GeV << " GeV"; |
---|
153 | if(eth < DBL_MAX) G4cout << ", HighEnergyThreshold(GeV)= " << eth/GeV; |
---|
154 | G4cout << G4endl; |
---|
155 | } |
---|
156 | } |
---|
157 | |
---|
158 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
---|