| 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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| 39 | // Modifications: |
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| 40 | // |
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| 41 | // |
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| 42 | // Class description: |
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| 43 | // dE/dx scaling algorithm applied on top of ICRU 73 data (for ions not |
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| 44 | // covered by the ICRU 73 report) |
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| 45 | // |
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| 46 | // Comments: |
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| 47 | // |
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| 48 | // =========================================================================== |
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| 49 | |
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| 50 | #include "G4IonDEDXScalingICRU73.hh" |
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| 51 | #include "G4ParticleDefinition.hh" |
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| 52 | #include "G4ParticleTable.hh" |
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| 53 | #include "G4Material.hh" |
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| 54 | |
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| 55 | |
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| 56 | // ########################################################################### |
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| 57 | |
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| 58 | G4IonDEDXScalingICRU73::G4IonDEDXScalingICRU73( |
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| 59 | G4int minAtomicNumberIon, |
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| 60 | G4int maxAtomicNumberIon, |
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| 61 | G4int atomicNumberReference, |
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| 62 | G4int massNumberReference) : |
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| 63 | minAtomicNumber( minAtomicNumberIon ), |
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| 64 | maxAtomicNumber( maxAtomicNumberIon ), |
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| 65 | excludedIon( false ), |
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| 66 | reference( 0 ), |
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| 67 | atomicNumberRef( atomicNumberReference ), |
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| 68 | massNumberRef( massNumberReference ) { |
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| 69 | |
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| 70 | } |
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| 71 | |
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| 72 | // ########################################################################### |
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| 73 | |
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| 74 | G4IonDEDXScalingICRU73::~G4IonDEDXScalingICRU73() { |
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| 75 | |
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| 76 | } |
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| 77 | |
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| 78 | // ########################################################################### |
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| 79 | |
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| 80 | void G4IonDEDXScalingICRU73::CreateReferenceParticle() { |
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| 81 | |
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| 82 | |
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| 83 | G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable(); |
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| 84 | |
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| 85 | G4double excitationEnergy = 0.0; |
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| 86 | |
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| 87 | reference = |
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| 88 | particleTable -> GetIon(atomicNumberRef, massNumberRef, excitationEnergy); |
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| 89 | |
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| 90 | massRef = reference -> GetPDGMass(); |
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| 91 | chargeRef = reference -> GetPDGCharge(); |
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| 92 | |
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| 93 | atomicNumberRefPow23 = std::pow(G4double(atomicNumberRef), 2./3.); |
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| 94 | } |
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| 95 | |
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| 96 | |
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| 97 | // ########################################################################### |
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| 98 | |
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| 99 | |
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| 100 | G4double G4IonDEDXScalingICRU73::ScalingFactorEnergy ( |
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| 101 | const G4ParticleDefinition* particle) { // Projectile (ion) |
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| 102 | |
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| 103 | G4double factor = 1.0; |
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| 104 | |
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| 105 | UpdateCache(particle); |
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| 106 | |
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| 107 | if(! excludedIon && |
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| 108 | cacheAtomicNumber >= minAtomicNumber && |
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| 109 | cacheAtomicNumber <= maxAtomicNumber) { |
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| 110 | |
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| 111 | if(reference == 0) CreateReferenceParticle(); |
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| 112 | |
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| 113 | factor = cacheMassNumber * (massRef / cacheMass) / massNumberRef; |
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| 114 | } |
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| 115 | |
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| 116 | return factor; |
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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 | G4double G4IonDEDXScalingICRU73::ScalingFactorDEDX( |
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| 122 | const G4ParticleDefinition* particle, // Projectile (ion) |
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| 123 | const G4Material*, // Target material |
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| 124 | G4double kineticEnergy) { // Kinetic energy |
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| 125 | |
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| 126 | G4double factor = 1.0; |
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| 127 | |
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| 128 | UpdateCache(particle); |
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| 129 | |
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| 130 | if(! excludedIon && |
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| 131 | cacheAtomicNumber >= minAtomicNumber && |
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| 132 | cacheAtomicNumber <= maxAtomicNumber) { |
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| 133 | |
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| 134 | if(reference == 0) CreateReferenceParticle(); |
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| 135 | |
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| 136 | G4double equilibriumCharge = EquilibriumCharge(cacheMass, |
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| 137 | cacheCharge, |
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| 138 | cacheAtomicNumberPow23, |
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| 139 | kineticEnergy); |
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| 140 | |
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| 141 | G4double scaledKineticEnergy = kineticEnergy * (massRef / cacheMass); |
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| 142 | |
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| 143 | G4double equilibriumChargeRef = EquilibriumCharge(massRef, |
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| 144 | chargeRef, |
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| 145 | atomicNumberRefPow23, |
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| 146 | scaledKineticEnergy); |
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| 147 | |
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| 148 | factor = equilibriumCharge * equilibriumCharge/ |
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| 149 | ( equilibriumChargeRef * equilibriumChargeRef ); |
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| 150 | } |
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| 151 | |
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| 152 | return factor; |
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| 153 | } |
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| 154 | |
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| 155 | // ########################################################################### |
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| 156 | |
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| 157 | G4int G4IonDEDXScalingICRU73::AtomicNumberBaseIon( |
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| 158 | G4int atomicNumberIon, // Atomic number of ion |
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| 159 | const G4Material*) { // Target material |
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| 160 | |
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| 161 | G4int atomicNumber = atomicNumberIon; |
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| 162 | |
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| 163 | if(atomicNumberIon >= minAtomicNumber && |
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| 164 | atomicNumberIon <= maxAtomicNumber) { |
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| 165 | |
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| 166 | G4bool ionIsExcluded = false; |
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| 167 | size_t nmb = excludedAtomicNumbers.size(); |
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| 168 | |
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| 169 | for(size_t i = 0; i < nmb; i++) { |
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| 170 | |
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| 171 | if(atomicNumberIon == excludedAtomicNumbers[i]) |
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| 172 | ionIsExcluded = true; |
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| 173 | } |
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| 174 | |
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| 175 | if(! ionIsExcluded) { |
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| 176 | if(reference == 0) CreateReferenceParticle(); |
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| 177 | |
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| 178 | atomicNumber = atomicNumberRef; |
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| 179 | } |
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| 180 | } |
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| 181 | |
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| 182 | return atomicNumber; |
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| 183 | } |
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| 184 | |
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| 185 | // ########################################################################### |
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