[968] | 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 |
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| 30 | // |
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| 31 | // Class: G4IonParametrisedLossTable |
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| 32 | // Helper classes: G4IonLossTableHandle |
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| 33 | // G4DummyScalingAlgorithm |
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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. 11. 2008 |
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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 descriptions: |
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| 43 | // G4IonParametrisedLossTable: Wrapper class for classes of the material |
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| 44 | // category, which maintain stopping power vectors for ions. This wrapper |
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| 45 | // class includes a cache for faster access of stopping powers and builds |
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| 46 | // stopping power vectors for compounds using Bragg's additivity rule. |
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| 47 | // G4IonLossTableHandle: A handle class for G4IonParametrisedLossTable |
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| 48 | // G4DummyScalingAlgorithm: A dummy algorithm to scale energies and |
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| 49 | // stopping powers (may be replaced with an algorithm, which relies on |
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| 50 | // dynamic information of the particle: This may be required if stopping |
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| 51 | // power data is scaled using an effective charge approximation). |
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| 52 | // |
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| 53 | // Comments: |
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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 | template < |
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| 59 | class LossTabulation, |
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| 60 | class ScalingAlgorithm |
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| 61 | > |
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| 62 | G4IonParametrisedLossTable < |
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| 63 | LossTabulation, |
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| 64 | ScalingAlgorithm |
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| 65 | >::G4IonParametrisedLossTable(G4int maxSizeCache, G4bool splines) : |
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| 66 | maxCacheEntries(maxSizeCache), |
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| 67 | useSplines(splines) { |
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| 68 | |
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| 69 | if(maxCacheEntries < 1) maxCacheEntries = 1; |
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| 70 | |
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| 71 | lowerEnergyEdge = LossTabulation::GetLowerEnergyBoundary(); |
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| 72 | upperEnergyEdge = LossTabulation::GetUpperEnergyBoundary(); |
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| 73 | } |
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| 74 | |
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| 75 | |
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| 76 | template < |
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| 77 | class LossTabulation, |
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| 78 | class ScalingAlgorithm |
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| 79 | > |
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| 80 | G4IonParametrisedLossTable < |
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| 81 | LossTabulation, |
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| 82 | ScalingAlgorithm |
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| 83 | >::~G4IonParametrisedLossTable() { |
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| 84 | |
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| 85 | StoppingPowerTable::iterator iterStop = s.begin(); |
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| 86 | StoppingPowerTable::iterator iterStop_end = s.end(); |
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| 87 | |
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| 88 | for(;iterStop != iterStop_end; iterStop++) delete iterStop -> second; |
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| 89 | s.clear(); |
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| 90 | |
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| 91 | CacheIterPointerMap::iterator iter = cacheKeyPointers.begin(); |
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| 92 | CacheIterPointerMap::iterator iter_end = cacheKeyPointers.end(); |
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| 93 | |
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| 94 | for(;iter != iter_end; iter++) { |
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| 95 | void* pointerIter = iter -> second; |
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| 96 | typename CacheEntryList::iterator* listPointerIter = |
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| 97 | (typename CacheEntryList::iterator*) pointerIter; |
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| 98 | |
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| 99 | delete listPointerIter; |
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| 100 | } |
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| 101 | |
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| 102 | cacheEntries.clear(); |
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| 103 | cacheKeyPointers.clear(); |
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| 104 | } |
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| 105 | |
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| 106 | |
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| 107 | template < |
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| 108 | class LossTabulation, |
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| 109 | class ScalingAlgorithm |
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| 110 | > |
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| 111 | G4bool G4IonParametrisedLossTable < |
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| 112 | LossTabulation, |
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| 113 | ScalingAlgorithm>::IsApplicable( |
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| 114 | const G4ParticleDefinition* particle, // Projectile (ion) |
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| 115 | const G4Material* material, // Target material |
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| 116 | G4double kineticEnergy) { // Kinetic energy of projectile |
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| 117 | |
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| 118 | G4bool isApplicable = false; |
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| 119 | G4int atomicNumber = particle -> GetAtomicNumber(); |
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| 120 | |
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| 121 | // Availability of table for ion-material couple is checked only if |
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| 122 | // the kinetic energy per nucleon is within the energy limits |
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| 123 | if(kineticEnergy / atomicNumber < upperEnergyEdge) { |
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| 124 | isApplicable = IsApplicable(particle, material); |
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| 125 | } |
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| 126 | |
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| 127 | return isApplicable; |
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| 128 | } |
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| 129 | |
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| 130 | |
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| 131 | template < |
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| 132 | class LossTabulation, |
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| 133 | class ScalingAlgorithm |
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| 134 | > |
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| 135 | G4bool G4IonParametrisedLossTable < |
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| 136 | LossTabulation, |
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| 137 | ScalingAlgorithm>::IsApplicable( |
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| 138 | const G4ParticleDefinition* particle, // Projectile (ion) |
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| 139 | const G4Material* material) { // Target material |
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| 140 | |
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| 141 | G4bool isApplicable = false; |
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| 142 | G4int atomicNumber = particle -> GetAtomicNumber(); |
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| 143 | |
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| 144 | G4int index = |
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| 145 | LossTabulation::GetIonMaterialCoupleIndex(atomicNumber, |
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| 146 | material -> GetName()); |
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| 147 | |
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| 148 | if(index >= 0) isApplicable = true; |
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| 149 | // If table for ion-material couple was not found, the applicability |
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| 150 | // of the Bragg rule is checked |
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| 151 | else { |
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| 152 | |
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| 153 | const G4int numberOfElements = material -> GetNumberOfElements(); |
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| 154 | |
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| 155 | if(numberOfElements > 1) { |
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| 156 | |
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| 157 | isApplicable = true; |
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| 158 | const G4ElementVector* elementVector = |
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| 159 | material -> GetElementVector() ; |
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| 160 | |
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| 161 | G4int elemIndex; |
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| 162 | for(G4int i = 0; i < numberOfElements; i++) { |
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| 163 | |
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| 164 | elemIndex = LossTabulation::GetIonMaterialCoupleIndex( |
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| 165 | atomicNumber, |
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| 166 | (*elementVector)[i] -> GetName()); |
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| 167 | if(elemIndex < 0) { |
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| 168 | isApplicable = false; |
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| 169 | break; |
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| 170 | } |
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| 171 | } |
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| 172 | } |
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| 173 | } |
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| 174 | |
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| 175 | return isApplicable; |
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| 176 | } |
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| 177 | |
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| 178 | |
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| 179 | template < |
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| 180 | class LossTabulation, |
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| 181 | class ScalingAlgorithm |
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| 182 | > |
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| 183 | G4PhysicsVector* G4IonParametrisedLossTable < |
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| 184 | LossTabulation, |
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| 185 | ScalingAlgorithm |
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| 186 | >::BuildStoppingPowerVector( |
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| 187 | const G4ParticleDefinition* particle, // Projectile (ion) |
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| 188 | const G4Material* material) { // Target material |
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| 189 | |
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| 190 | |
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| 191 | const G4int numberOfElements = material -> GetNumberOfElements(); |
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| 192 | G4LPhysicsFreeVector* dEdxBragg = 0; |
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| 193 | |
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| 194 | if(numberOfElements > 1) { |
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| 195 | G4bool b; |
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| 196 | |
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| 197 | const G4ElementVector* elementVector = |
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| 198 | material -> GetElementVector() ; |
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| 199 | |
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| 200 | |
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| 201 | G4int atomicNumber = particle -> GetAtomicNumber(); |
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| 202 | |
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| 203 | std::vector<G4PhysicsVector*> dEdxTable; |
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| 204 | std::vector<G4double> densityTable; |
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| 205 | |
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| 206 | for(G4int i = 0; i < numberOfElements; i++) { |
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| 207 | |
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| 208 | const G4String& elemName = (*elementVector)[i] -> GetName(); |
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| 209 | G4int index = LossTabulation::GetIonMaterialCoupleIndex( |
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| 210 | atomicNumber, |
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| 211 | elemName); |
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| 212 | |
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| 213 | if(index < 0) { dEdxTable.clear(); break; } |
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| 214 | |
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| 215 | G4PhysicsVector* dEdx = |
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| 216 | LossTabulation::GetPhysicsVector(atomicNumber, elemName); |
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| 217 | dEdxTable.push_back(dEdx); |
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| 218 | |
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| 219 | G4double density = LossTabulation::GetDensity( |
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| 220 | LossTabulation::GetMaterialIndex(elemName)); |
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| 221 | densityTable.push_back(density); |
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| 222 | } |
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| 223 | |
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| 224 | if(dEdxTable.size() > 0) { |
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| 225 | |
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| 226 | size_t nmbdEdxBins = dEdxTable[0] -> GetVectorLength(); |
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| 227 | G4double lowerEdge = dEdxTable[0] -> GetLowEdgeEnergy(0); |
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| 228 | G4double upperEdge = dEdxTable[0] -> GetLowEdgeEnergy(nmbdEdxBins); |
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| 229 | |
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| 230 | dEdxBragg = new G4LPhysicsFreeVector(nmbdEdxBins, |
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| 231 | lowerEdge, |
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| 232 | upperEdge); |
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| 233 | |
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| 234 | const G4double* massFractionVector = material -> GetFractionVector(); |
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| 235 | |
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| 236 | G4double densityCompound = material -> GetDensity(); |
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| 237 | |
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| 238 | for(size_t j = 0; j < nmbdEdxBins; j++) { |
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| 239 | |
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| 240 | G4double edge = dEdxTable[0] -> GetLowEdgeEnergy(j); |
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| 241 | |
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| 242 | G4double value = 0.0; |
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| 243 | for(G4int i = 0; i < numberOfElements; i++) { |
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| 244 | |
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| 245 | value += (dEdxTable[i] -> GetValue(edge ,b)) * |
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| 246 | massFractionVector[i] / densityTable[i]; |
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| 247 | } |
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| 248 | |
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| 249 | value *= densityCompound; |
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| 250 | |
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| 251 | dEdxBragg -> PutValues(j, edge, value); |
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| 252 | } |
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| 253 | |
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| 254 | s[std::make_pair(particle, material)] = dEdxBragg; |
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| 255 | } |
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| 256 | } |
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| 257 | return dEdxBragg; |
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| 258 | } |
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| 259 | |
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| 260 | |
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| 261 | template < |
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| 262 | class LossTabulation, |
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| 263 | class ScalingAlgorithm |
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| 264 | > |
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| 265 | G4double G4IonParametrisedLossTable < |
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| 266 | LossTabulation, |
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| 267 | ScalingAlgorithm |
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| 268 | >::GetLowerEnergyEdge( |
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| 269 | const G4ParticleDefinition* particle, // Projectile (ion) |
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| 270 | const G4Material* material) { // Target material |
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| 271 | |
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| 272 | G4CacheValue value = GetCacheValue(particle, material); |
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| 273 | |
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| 274 | G4double lowerEnergy = 0.0; |
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| 275 | |
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| 276 | if(value.energyScaling > 0) |
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| 277 | lowerEnergy = lowerEnergyEdge / value.energyScaling; |
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| 278 | |
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| 279 | return lowerEnergy; |
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| 280 | } |
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| 281 | |
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| 282 | |
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| 283 | template < |
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| 284 | class LossTabulation, |
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| 285 | class ScalingAlgorithm |
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| 286 | > |
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| 287 | G4double G4IonParametrisedLossTable < |
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| 288 | LossTabulation, |
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| 289 | ScalingAlgorithm |
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| 290 | >::GetUpperEnergyEdge( |
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| 291 | const G4ParticleDefinition* particle, // Projectile (ion) |
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| 292 | const G4Material* material) { // Target material |
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| 293 | |
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| 294 | G4CacheValue value = GetCacheValue(particle, material); |
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| 295 | |
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| 296 | G4double upperEnergy = 0.0; |
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| 297 | |
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| 298 | if(value.energyScaling > 0) |
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| 299 | upperEnergy = upperEnergyEdge / value.energyScaling; |
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| 300 | |
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| 301 | return upperEnergy; |
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| 302 | } |
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| 303 | |
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| 304 | |
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| 305 | template < |
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| 306 | class LossTabulation, |
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| 307 | class ScalingAlgorithm |
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| 308 | > |
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| 309 | void G4IonParametrisedLossTable < |
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| 310 | LossTabulation, |
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| 311 | ScalingAlgorithm |
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| 312 | >::PrintDEDXTable(const G4ParticleDefinition* particle, // Projectile (ion) |
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| 313 | const G4Material* material, // Target material |
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| 314 | G4double lowerBoundary, // Minimum energy per nucleon |
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| 315 | G4double upperBoundary, // Maximum energy per nucleon |
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| 316 | G4int nmbBins, // Number of bins |
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| 317 | G4bool logScaleEnergy) { // Logarithmic scaling of energy |
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| 318 | |
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| 319 | G4double atomicMassNumber = particle -> GetAtomicMass(); |
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| 320 | G4double materialDensity = material -> GetDensity(); |
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| 321 | |
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| 322 | G4cout << "# dE/dx table for " << particle -> GetParticleName() |
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| 323 | << " in material " << material -> GetName() |
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| 324 | << " of density " << materialDensity / g * cm3 |
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| 325 | << " g/cm3" |
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| 326 | << G4endl |
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| 327 | << "# Projectile mass number A1 = " << atomicMassNumber |
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| 328 | << G4endl |
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| 329 | << "# Energy range (per nucleon) of tabulation: " |
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| 330 | << GetLowerEnergyEdge(particle, material) / atomicMassNumber / MeV |
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| 331 | << " - " |
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| 332 | << GetUpperEnergyEdge(particle, material) / atomicMassNumber / MeV |
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| 333 | << " MeV" |
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| 334 | << G4endl |
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| 335 | << "# ------------------------------------------------------" |
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| 336 | << G4endl; |
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| 337 | G4cout << "#" |
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| 338 | << std::setw(13) << std::right << "E" |
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| 339 | << std::setw(14) << "E/A1" |
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| 340 | << std::setw(14) << "dE/dx" |
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| 341 | << std::setw(14) << "1/rho*dE/dx" |
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| 342 | << G4endl; |
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| 343 | G4cout << "#" |
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| 344 | << std::setw(13) << std::right << "(MeV)" |
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| 345 | << std::setw(14) << "(MeV)" |
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| 346 | << std::setw(14) << "(MeV/cm)" |
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| 347 | << std::setw(14) << "(MeV*cm2/mg)" |
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| 348 | << G4endl |
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| 349 | << "# ------------------------------------------------------" |
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| 350 | << G4endl; |
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| 351 | |
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| 352 | G4CacheValue value = GetCacheValue(particle, material); |
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| 353 | |
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| 354 | G4double energyLowerBoundary = lowerBoundary * atomicMassNumber; |
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| 355 | G4double energyUpperBoundary = upperBoundary * atomicMassNumber; |
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| 356 | |
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| 357 | if(logScaleEnergy) { |
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| 358 | |
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| 359 | energyLowerBoundary = std::log(energyLowerBoundary); |
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| 360 | energyUpperBoundary = std::log(energyUpperBoundary); |
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| 361 | } |
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| 362 | |
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| 363 | G4double deltaEnergy = (energyUpperBoundary - energyLowerBoundary) / |
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| 364 | G4double(nmbBins); |
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| 365 | |
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| 366 | G4cout.precision(6); |
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| 367 | for(int i = 0; i < nmbBins + 1; i++) { |
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| 368 | |
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| 369 | G4double energy = energyLowerBoundary + i * deltaEnergy; |
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| 370 | if(logScaleEnergy) energy = std::exp(energy); |
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| 371 | |
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| 372 | G4double loss = GetDEDX(particle, material, energy); |
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| 373 | |
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| 374 | G4cout << std::setw(14) << std::right << energy / MeV |
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| 375 | << std::setw(14) << energy / atomicMassNumber / MeV |
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| 376 | << std::setw(14) << loss / MeV * cm |
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| 377 | << std::setw(14) << loss / materialDensity / (MeV*cm2/(0.001*g)) |
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| 378 | << G4endl; |
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| 379 | } |
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| 380 | } |
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| 381 | |
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| 382 | |
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| 383 | template < |
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| 384 | class LossTabulation, |
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| 385 | class ScalingAlgorithm |
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| 386 | > |
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| 387 | G4double G4IonParametrisedLossTable < |
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| 388 | LossTabulation, |
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| 389 | ScalingAlgorithm>::GetDEDX( |
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| 390 | const G4ParticleDefinition* particle, // Projectile (ion) |
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| 391 | const G4Material* material, // Target material |
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| 392 | G4double kineticEnergy) { // Kinetic energy of projectile |
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| 393 | |
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| 394 | G4double dedx = 0.0; |
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| 395 | |
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| 396 | G4CacheValue value = GetCacheValue(particle, material); |
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| 397 | |
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| 398 | if(kineticEnergy <= 0.0) dedx = 0.0; |
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| 399 | else if(value.dedx != 0) { |
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| 400 | |
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| 401 | G4double factor = 0.0; |
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| 402 | G4bool b; |
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| 403 | |
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| 404 | factor = ScalingAlgorithm::ScalingFactorDEDX(particle, |
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| 405 | material, |
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| 406 | kineticEnergy); |
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| 407 | G4double scaledKineticEnergy = kineticEnergy * value.energyScaling; |
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| 408 | |
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| 409 | if(scaledKineticEnergy < lowerEnergyEdge) { |
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| 410 | |
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| 411 | factor *= std::sqrt(scaledKineticEnergy / lowerEnergyEdge); |
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| 412 | scaledKineticEnergy = lowerEnergyEdge; |
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| 413 | } |
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| 414 | |
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| 415 | dedx = factor * value.dedx -> GetValue(scaledKineticEnergy, b); |
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| 416 | |
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| 417 | if(dedx < 0.0) dedx = 0.0; |
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| 418 | } |
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| 419 | else dedx = 0.0; |
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| 420 | |
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| 421 | #ifdef PRINT_DEBUG |
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| 422 | G4cout << "G4IonParametrisedLossTable::GetDEDX() E = " |
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| 423 | << kineticEnergy / MeV << " MeV * " |
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| 424 | << value.energyScaling << " = " |
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| 425 | << kineticEnergy * value.energyScaling / MeV |
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| 426 | << " MeV, dE/dx = " << dedx / MeV * cm << " MeV/cm = " |
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| 427 | << dedx/factor/MeV*cm << " * " << factor << " MeV/cm; index = " |
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| 428 | << value.dEdxIndex << ", material = " << material -> GetName() |
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| 429 | << G4endl; |
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| 430 | #endif |
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| 431 | |
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| 432 | return dedx; |
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| 433 | } |
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| 434 | |
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| 435 | |
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| 436 | template < |
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| 437 | class LossTabulation, |
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| 438 | class ScalingAlgorithm |
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| 439 | > |
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| 440 | G4CacheValue G4IonParametrisedLossTable < |
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| 441 | LossTabulation, |
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| 442 | ScalingAlgorithm |
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| 443 | >::UpdateCacheValue( |
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| 444 | const G4ParticleDefinition* particle, // Projectile (ion) |
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| 445 | const G4Material* material) { // Target material |
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| 446 | |
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| 447 | G4CacheValue value; |
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| 448 | G4CacheKey key = std::make_pair(particle, material); |
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| 449 | |
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| 450 | G4double nmbNucleons = G4double(particle -> GetAtomicMass()); |
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| 451 | value.energyScaling = |
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| 452 | ScalingAlgorithm::ScalingFactorEnergy(particle) / nmbNucleons; |
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| 453 | |
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| 454 | G4int atomicNumber = particle -> GetAtomicNumber(); |
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| 455 | |
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| 456 | value.dEdxIndex = |
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| 457 | LossTabulation::GetIonMaterialCoupleIndex(atomicNumber, |
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| 458 | material -> GetName()); |
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| 459 | |
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| 460 | if(value.dEdxIndex < 0) { |
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| 461 | |
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| 462 | StoppingPowerTable::iterator iter = s.find(key); |
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| 463 | if(iter == s.end()) { |
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| 464 | value.dedx = BuildStoppingPowerVector(particle, material); |
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| 465 | } |
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| 466 | else { |
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| 467 | value.dedx = iter -> second; |
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| 468 | } |
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| 469 | } |
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| 470 | else { |
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| 471 | value.dedx = LossTabulation::GetPhysicsVector(atomicNumber, |
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| 472 | material -> GetName()); |
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| 473 | } |
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| 474 | |
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| 475 | #ifdef PRINT_DEBUG |
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| 476 | G4cout << "G4IonParametrisedLossTable::UpdateCacheValue() for " |
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| 477 | << particle -> GetParticleName() << " in " |
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| 478 | << material -> GetName() << ": index = " << value.dEdxIndex |
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| 479 | << G4endl; |
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| 480 | #endif |
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| 481 | |
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| 482 | return value; |
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| 483 | } |
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| 484 | |
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| 485 | |
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| 486 | template < |
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| 487 | class LossTabulation, |
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| 488 | class ScalingAlgorithm |
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| 489 | > |
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| 490 | G4CacheValue G4IonParametrisedLossTable < |
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| 491 | LossTabulation, |
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| 492 | ScalingAlgorithm |
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| 493 | >::GetCacheValue( |
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| 494 | const G4ParticleDefinition* particle, // Projectile (ion) |
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| 495 | const G4Material* material) { // Target material |
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| 496 | |
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| 497 | G4CacheKey key = std::make_pair(particle, material); |
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| 498 | |
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| 499 | G4CacheEntry entry; |
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| 500 | typename CacheEntryList::iterator* pointerIter = |
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| 501 | (typename CacheEntryList::iterator*) cacheKeyPointers[key]; |
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| 502 | |
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| 503 | if(!pointerIter) { |
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| 504 | entry.value = UpdateCacheValue(particle, material); |
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| 505 | |
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| 506 | #ifdef PRINT_DEBUG |
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| 507 | G4cout << "G4IonParametrisedLossTable::GetCacheValue() " |
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| 508 | << "Updating cache for " |
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| 509 | << material -> GetName() << ": index = " << entry.value.dEdxIndex |
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| 510 | << G4endl; |
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| 511 | #endif |
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| 512 | |
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| 513 | entry.key = key; |
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| 514 | cacheEntries.push_front(entry); |
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| 515 | |
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| 516 | typename CacheEntryList::iterator* pointerIter = |
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| 517 | new typename CacheEntryList::iterator(); |
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| 518 | *pointerIter = cacheEntries.begin(); |
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| 519 | cacheKeyPointers[key] = pointerIter; |
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| 520 | |
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| 521 | if(G4int(cacheEntries.size()) > maxCacheEntries) { |
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| 522 | |
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| 523 | G4CacheEntry lastEntry = cacheEntries.back(); |
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| 524 | |
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| 525 | void* pointerIter = cacheKeyPointers[lastEntry.key]; |
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| 526 | typename CacheEntryList::iterator* listPointerIter = |
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| 527 | (typename CacheEntryList::iterator*) pointerIter; |
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| 528 | delete listPointerIter; |
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| 529 | cacheKeyPointers.erase(lastEntry.key); |
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| 530 | } |
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| 531 | } |
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| 532 | else { |
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| 533 | entry = *(*pointerIter); |
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| 534 | // Cache entries are currently not re-ordered. |
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| 535 | // Uncomment for activating re-ordering: |
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| 536 | // cacheEntries.erase(*pointerIter); |
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| 537 | // cacheEntries.push_front(entry); |
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| 538 | // *pointerIter = cacheEntries.begin(); |
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| 539 | } |
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| 540 | return entry.value; |
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| 541 | } |
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| 542 | |
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| 543 | |
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| 544 | template < |
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| 545 | class LossTabulation, |
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| 546 | class ScalingAlgorithm |
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| 547 | > |
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| 548 | void G4IonParametrisedLossTable < |
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| 549 | LossTabulation, |
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| 550 | ScalingAlgorithm |
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| 551 | >::ClearCache() { |
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| 552 | |
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| 553 | CacheIterPointerMap::iterator iter = cacheKeyPointers.begin(); |
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| 554 | CacheIterPointerMap::iterator iter_end = cacheKeyPointers.end(); |
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| 555 | |
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| 556 | for(;iter != iter_end; iter++) { |
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| 557 | void* pointerIter = iter -> second; |
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| 558 | typename CacheEntryList::iterator* listPointerIter = |
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| 559 | (typename CacheEntryList::iterator*) pointerIter; |
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| 560 | |
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| 561 | delete listPointerIter; |
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| 562 | } |
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| 563 | |
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| 564 | cacheEntries.clear(); |
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| 565 | cacheKeyPointers.clear(); |
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| 566 | } |
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