[1058] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // |
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| 27 | // |
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| 28 | // =========================================================================== |
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| 29 | // GEANT4 class source file |
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| 30 | // |
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| 31 | // Class: G4IonDEDXScalingICRU73 |
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| 32 | // |
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| 33 | // Base class: G4VIonDEDXScalingAlgorithm |
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| 34 | // |
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| 35 | // Author: Anton Lechner (Anton.Lechner@cern.ch) |
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| 36 | // |
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| 37 | // First implementation: 10. 05. 2009 |
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| 38 | // |
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[1192] | 39 | // Modifications: 06. 08. 2009 - Minor bug fix (initialization of cache) AL |
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| 40 | // 12. 11. 2009 - Moved all decision logic concerning ICRU 73 |
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| 41 | // scaling for heavy ions into this class. |
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| 42 | // Adapting ScalingFactorEnergy class according |
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| 43 | // to changes in base class (AL). |
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[1058] | 44 | // |
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| 45 | // Class description: |
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| 46 | // dE/dx scaling algorithm applied on top of ICRU 73 data (for ions not |
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| 47 | // covered by the ICRU 73 report) |
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| 48 | // |
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| 49 | // Comments: |
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| 50 | // |
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| 51 | // =========================================================================== |
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| 52 | |
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| 53 | #include "G4IonDEDXScalingICRU73.hh" |
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| 54 | #include "G4ParticleDefinition.hh" |
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| 55 | #include "G4ParticleTable.hh" |
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| 56 | #include "G4Material.hh" |
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| 57 | |
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| 58 | |
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| 59 | // ########################################################################### |
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| 60 | |
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| 61 | G4IonDEDXScalingICRU73::G4IonDEDXScalingICRU73( |
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| 62 | G4int minAtomicNumberIon, |
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[1192] | 63 | G4int maxAtomicNumberIon) : |
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[1058] | 64 | minAtomicNumber( minAtomicNumberIon ), |
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| 65 | maxAtomicNumber( maxAtomicNumberIon ), |
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[1192] | 66 | referenceFe( 0 ), |
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| 67 | atomicNumberRefFe( 26 ), |
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| 68 | massNumberRefFe( 56 ), |
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| 69 | atomicNumberRefPow23Fe( 0 ), |
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| 70 | chargeRefFe( 0 ), |
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| 71 | massRefFe( 0 ), |
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| 72 | referenceAr( 0 ), |
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| 73 | atomicNumberRefAr( 18 ), |
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| 74 | massNumberRefAr( 40 ), |
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| 75 | atomicNumberRefPow23Ar( 0 ), |
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| 76 | chargeRefAr( 0 ), |
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| 77 | massRefAr( 0 ), |
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| 78 | useFe( true ), |
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| 79 | cacheParticle( 0 ), |
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| 80 | cacheMassNumber( 0 ), |
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| 81 | cacheAtomicNumber( 0 ), |
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| 82 | cacheAtomicNumberPow23( 0 ), |
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| 83 | cacheCharge( 0 ), |
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| 84 | cacheMass( 0 ), |
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| 85 | cacheMaterial( 0 ) { |
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[1058] | 86 | |
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| 87 | } |
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| 88 | |
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| 89 | // ########################################################################### |
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| 90 | |
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| 91 | G4IonDEDXScalingICRU73::~G4IonDEDXScalingICRU73() { |
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| 92 | |
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| 93 | } |
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| 94 | |
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| 95 | // ########################################################################### |
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| 96 | |
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[1192] | 97 | void G4IonDEDXScalingICRU73::CreateReferenceParticles() { |
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[1058] | 98 | |
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| 99 | G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable(); |
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| 100 | |
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| 101 | G4double excitationEnergy = 0.0; |
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| 102 | |
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[1192] | 103 | referenceFe = particleTable -> GetIon(atomicNumberRefFe, massNumberRefFe, |
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| 104 | excitationEnergy); |
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| 105 | referenceAr = particleTable -> GetIon(atomicNumberRefAr, massNumberRefAr, |
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| 106 | excitationEnergy); |
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[1058] | 107 | |
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[1192] | 108 | massRefFe = referenceFe -> GetPDGMass(); |
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| 109 | massRefAr = referenceAr -> GetPDGMass(); |
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[1058] | 110 | |
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[1192] | 111 | chargeRefFe = referenceFe -> GetPDGCharge(); |
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| 112 | chargeRefAr = referenceAr -> GetPDGCharge(); |
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| 113 | |
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| 114 | atomicNumberRefPow23Fe = std::pow(G4double(atomicNumberRefFe), 2./3.); |
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| 115 | atomicNumberRefPow23Ar = std::pow(G4double(atomicNumberRefAr), 2./3.); |
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[1058] | 116 | } |
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| 117 | |
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| 118 | |
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| 119 | // ########################################################################### |
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| 120 | |
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| 121 | |
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| 122 | G4double G4IonDEDXScalingICRU73::ScalingFactorEnergy ( |
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[1192] | 123 | const G4ParticleDefinition* particle, // Projectile (ion) |
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| 124 | const G4Material* material) { // Target material |
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[1058] | 125 | |
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| 126 | G4double factor = 1.0; |
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| 127 | |
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[1192] | 128 | UpdateCacheParticle(particle); |
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| 129 | UpdateCacheMaterial(material); |
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[1058] | 130 | |
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[1192] | 131 | if(cacheAtomicNumber >= minAtomicNumber && |
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| 132 | cacheAtomicNumber <= maxAtomicNumber && |
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| 133 | cacheAtomicNumber != atomicNumberRefFe && |
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| 134 | cacheAtomicNumber != atomicNumberRefAr) { |
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[1058] | 135 | |
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[1192] | 136 | if(referenceFe == 0 || referenceAr == 0) CreateReferenceParticles(); |
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[1058] | 137 | |
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[1192] | 138 | if( useFe ) |
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| 139 | factor = cacheMassNumber * (massRefFe / cacheMass) / massNumberRefFe; |
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| 140 | else |
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| 141 | factor = cacheMassNumber * (massRefAr / cacheMass) / massNumberRefAr; |
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[1058] | 142 | } |
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| 143 | |
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| 144 | return factor; |
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| 145 | } |
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| 146 | |
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| 147 | // ########################################################################### |
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| 148 | |
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| 149 | G4double G4IonDEDXScalingICRU73::ScalingFactorDEDX( |
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| 150 | const G4ParticleDefinition* particle, // Projectile (ion) |
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[1192] | 151 | const G4Material* material, // Target material |
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[1058] | 152 | G4double kineticEnergy) { // Kinetic energy |
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| 153 | |
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| 154 | G4double factor = 1.0; |
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| 155 | |
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[1192] | 156 | UpdateCacheParticle(particle); |
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| 157 | UpdateCacheMaterial(material); |
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[1058] | 158 | |
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[1192] | 159 | if(cacheAtomicNumber >= minAtomicNumber && |
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| 160 | cacheAtomicNumber <= maxAtomicNumber && |
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| 161 | cacheAtomicNumber != atomicNumberRefFe && |
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| 162 | cacheAtomicNumber != atomicNumberRefAr) { |
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[1058] | 163 | |
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[1192] | 164 | if(referenceFe == 0 || referenceAr == 0) CreateReferenceParticles(); |
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[1058] | 165 | |
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[1192] | 166 | if( useFe ) { |
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| 167 | |
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| 168 | G4double equilibriumCharge = EquilibriumCharge(cacheMass, |
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[1058] | 169 | cacheCharge, |
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| 170 | cacheAtomicNumberPow23, |
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| 171 | kineticEnergy); |
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| 172 | |
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[1192] | 173 | G4double scaledKineticEnergy = kineticEnergy * (massRefFe / cacheMass); |
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[1058] | 174 | |
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[1192] | 175 | G4double equilibriumChargeRefFe = EquilibriumCharge(massRefFe, |
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| 176 | chargeRefFe, |
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| 177 | atomicNumberRefPow23Fe, |
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[1058] | 178 | scaledKineticEnergy); |
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| 179 | |
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[1192] | 180 | factor = equilibriumCharge * equilibriumCharge/ |
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| 181 | ( equilibriumChargeRefFe * equilibriumChargeRefFe ); |
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[1058] | 182 | |
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[1192] | 183 | } |
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| 184 | else { |
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| 185 | |
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| 186 | G4double equilibriumCharge = EquilibriumCharge(cacheMass, |
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| 187 | cacheCharge, |
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| 188 | cacheAtomicNumberPow23, |
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| 189 | kineticEnergy); |
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| 190 | |
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| 191 | G4double scaledKineticEnergy = kineticEnergy * (massRefAr / cacheMass); |
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| 192 | |
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| 193 | G4double equilibriumChargeRefAr = EquilibriumCharge(massRefAr, |
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| 194 | chargeRefAr, |
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| 195 | atomicNumberRefPow23Ar, |
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| 196 | scaledKineticEnergy); |
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| 197 | |
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| 198 | factor = equilibriumCharge * equilibriumCharge/ |
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| 199 | ( equilibriumChargeRefAr * equilibriumChargeRefAr ); |
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| 200 | |
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| 201 | } |
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| 202 | } |
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| 203 | |
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[1058] | 204 | return factor; |
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| 205 | } |
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| 206 | |
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| 207 | // ########################################################################### |
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| 208 | |
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| 209 | G4int G4IonDEDXScalingICRU73::AtomicNumberBaseIon( |
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| 210 | G4int atomicNumberIon, // Atomic number of ion |
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[1192] | 211 | const G4Material* material) { // Target material |
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[1058] | 212 | |
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[1192] | 213 | UpdateCacheMaterial(material); |
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| 214 | |
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[1058] | 215 | G4int atomicNumber = atomicNumberIon; |
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| 216 | |
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| 217 | if(atomicNumberIon >= minAtomicNumber && |
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[1192] | 218 | atomicNumberIon <= maxAtomicNumber && |
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| 219 | atomicNumberIon != atomicNumberRefFe && |
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| 220 | atomicNumberIon != atomicNumberRefAr) { |
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[1058] | 221 | |
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[1192] | 222 | if(referenceFe == 0 || referenceAr == 0) CreateReferenceParticles(); |
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[1058] | 223 | |
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[1192] | 224 | if( useFe ) atomicNumber = atomicNumberRefFe; |
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| 225 | else atomicNumber = atomicNumberRefAr; |
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[1058] | 226 | } |
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| 227 | |
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| 228 | return atomicNumber; |
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| 229 | } |
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| 230 | |
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| 231 | // ########################################################################### |
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