| Geant4 Cross Reference |
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 // Hadronic Process: Energy Range Manager
28 // original by H.P. Wellisch
29 // modified by J.L. Chuma, TRIUMF, 22-Nov-1996
30 // Last modified: 24-Mar-1997
31 // fix in the counter-hndling: H.P. Wellisch 04-Apr-97
32 // throw an exception if no model found: J.L. Chuma 04-Apr-97
33
34 #include "G4EnergyRangeManager.hh"
35 #include "Randomize.hh"
36 #include "G4HadronicException.hh"
37 #include "G4SystemOfUnits.hh"
38
39 G4EnergyRangeManager::G4EnergyRangeManager()
40 : theHadronicInteractionCounter(0)
41 {}
42
43 G4EnergyRangeManager::~G4EnergyRangeManager()
44 {}
45
46 void G4EnergyRangeManager::RegisterMe(G4HadronicInteraction* a)
47 {
48 if(!a) { return; }
49 if(0 < theHadronicInteractionCounter) {
50 for(G4int i=0; i<theHadronicInteractionCounter; ++i) {
51 if(a == theHadronicInteraction[i]) { return; }
52 }
53 }
54 theHadronicInteraction.push_back(a);
55 ++theHadronicInteractionCounter;
56 }
57
58 G4HadronicInteraction*
59 G4EnergyRangeManager::GetHadronicInteraction(const G4HadProjectile & aHadProjectile,
60 G4Nucleus & aTargetNucleus,
61 const G4Material* aMaterial,
62 const G4Element* anElement) const
63 {
64 // VI shortcut: if only one interaction is registered skip all checks
65 if(1 == theHadronicInteractionCounter) { return theHadronicInteraction[0]; }
66 else if(0 == theHadronicInteractionCounter) {
67 G4cout << "G4EnergyRangeManager::GetHadronicInteraction: "
68 << "no models defined for a process" << G4endl;
69 return nullptr;
70 }
71
72 G4double kineticEnergy = aHadProjectile.GetKineticEnergy();
73 // For ions, get kinetic energy per nucleon
74 if ( std::abs( aHadProjectile.GetDefinition()->GetBaryonNumber() ) > 1 ) {
75 kineticEnergy /= static_cast< G4double >( std::abs( aHadProjectile.GetDefinition()->GetBaryonNumber() ) );
76 }
77
78 G4int cou = 0, memory = 0, memor2 = 0;
79 G4double emi1 = 0.0, ema1 = 0.0, emi2 = 0.0, ema2 = 0.0;
80
81 for (G4int i = 0; i<theHadronicInteractionCounter; ++i) {
82 if ( theHadronicInteraction[i]->IsApplicable( aHadProjectile, aTargetNucleus ) ) {
83 G4double low = theHadronicInteraction[i]->GetMinEnergy( aMaterial, anElement );
84 G4double high = theHadronicInteraction[i]->GetMaxEnergy( aMaterial, anElement );
85 if (low <= kineticEnergy && high >= kineticEnergy) {
86 ++cou;
87 emi2 = emi1;
88 ema2 = ema1;
89 emi1 = low;
90 ema1 = high;
91 memor2 = memory;
92 memory = i;
93 }
94 }
95 }
96
97 G4HadronicInteraction* hi = nullptr;
98 switch (cou) {
99 case 0:
100 G4cout << "No model found out of " << theHadronicInteractionCounter << G4endl;
101 for( G4int j=0; j<theHadronicInteractionCounter; ++j) {
102 G4HadronicInteraction* hint=theHadronicInteraction[j];
103 G4cout << " "<< j << ". Elow= " << hint->GetMinEnergy(aMaterial,anElement)
104 <<", Ehigh= " << hint->GetMaxEnergy(aMaterial,anElement)
105 <<" " << hint->GetModelName() << G4endl;
106 }
107 break;
108
109 case 1:
110 hi = theHadronicInteraction[memory];
111 break;
112
113 case 2:
114 if( (emi2<=emi1 && ema2>=ema1) || (emi2>=emi1 && ema2<=ema1) ) {
115 G4cout << "Energy ranges of two models fully overlapping " << G4endl;
116 for( G4int j=0; j<theHadronicInteractionCounter; ++j) {
117 G4HadronicInteraction* hint=theHadronicInteraction[j];
118 G4cout << " "<< j << ". Elow= " << hint->GetMinEnergy(aMaterial,anElement)
119 <<", Ehigh= " << hint->GetMaxEnergy(aMaterial,anElement)
120 <<" " << hint->GetModelName() << G4endl;
121 }
122 } else {
123 G4double rand = G4UniformRand();
124 G4int mem;
125 if( emi1 < emi2 ) {
126 if( (ema1-kineticEnergy) < rand*(ema1-emi2) ) {
127 mem = memor2;
128 } else {
129 mem = memory;
130 }
131 } else {
132 if( (ema2-kineticEnergy) < rand*(ema2-emi1) ) {
133 mem = memory;
134 } else {
135 mem = memor2;
136 }
137 }
138 hi = theHadronicInteraction[mem];
139 }
140 break;
141
142 default:
143 G4cout << "More than two competing models for this energy" << G4endl;
144 for( G4int j=0; j<theHadronicInteractionCounter; ++j) {
145 G4HadronicInteraction* hint=theHadronicInteraction[j];
146 G4cout << " "<< j << ". Elow= " << hint->GetMinEnergy(aMaterial,anElement)
147 <<", Ehigh= " << hint->GetMaxEnergy(aMaterial,anElement)
148 <<" " << hint->GetModelName() << G4endl;
149 }
150 break;
151 }
152 return hi;
153 }
154
155 std::vector<G4HadronicInteraction*>&
156 G4EnergyRangeManager::GetHadronicInteractionList()
157 {
158 return theHadronicInteraction;
159 }
160
161 void G4EnergyRangeManager::Dump( G4int verbose )
162 {
163 G4cout << "G4EnergyRangeManager " << this << G4endl;
164 for (G4int i = 0 ; i < theHadronicInteractionCounter; i++) {
165 G4cout << " HadronicModel " << i <<":"
166 << theHadronicInteraction[i]->GetModelName() << G4endl;
167 if (verbose > 0) {
168 G4cout << " Minimum Energy "
169 << theHadronicInteraction[i]->GetMinEnergy()/GeV << " [GeV], "
170 << "Maximum Energy "
171 << theHadronicInteraction[i]->GetMaxEnergy()/GeV << " [GeV]"
172 << G4endl;
173 }
174 }
175 }
176
177 void
178 G4EnergyRangeManager::BuildPhysicsTable(const G4ParticleDefinition& aParticleType)
179 {
180 for (auto & hadi : theHadronicInteraction) {
181 hadi->BuildPhysicsTable( aParticleType );
182 }
183 }
184
185
186