[819] | 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 | // $Id: G4LossTableBuilder.cc,v 1.24 2007/02/16 11:59:35 vnivanch Exp $ |
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| 27 | // GEANT4 tag $Name: geant4-09-01-patch-02 $ |
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| 28 | // |
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| 29 | // ------------------------------------------------------------------- |
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| 30 | // |
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| 31 | // GEANT4 Class file |
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| 32 | // |
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| 33 | // |
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| 34 | // File name: G4LossTableBuilder |
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| 35 | // |
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| 36 | // Author: Vladimir Ivanchenko |
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| 37 | // |
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| 38 | // Creation date: 03.01.2002 |
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| 39 | // |
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| 40 | // Modifications: |
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| 41 | // |
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| 42 | // 23-01-03 V.Ivanchenko Cut per region |
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| 43 | // 21-07-04 V.Ivanchenko Fix problem of range for dedx=0 |
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| 44 | // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivanchenko) |
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| 45 | // 07-12-04 Fix of BuildDEDX table (V.Ivanchenko) |
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| 46 | // 27-03-06 Add bool options isIonisation (V.Ivanchenko) |
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| 47 | // 16-01-07 Fill new (not old) DEDX table (V.Ivanchenko) |
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| 48 | // 12-02-07 Use G4LPhysicsFreeVector for the inverse range table (V.Ivanchenko) |
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| 49 | // |
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| 50 | // Class Description: |
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| 51 | // |
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| 52 | // ------------------------------------------------------------------- |
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| 53 | // |
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| 54 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 55 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 56 | |
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| 57 | #include "G4LossTableBuilder.hh" |
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| 58 | #include "G4PhysicsTable.hh" |
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| 59 | #include "G4PhysicsLogVector.hh" |
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| 60 | #include "G4PhysicsTableHelper.hh" |
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| 61 | #include "G4LPhysicsFreeVector.hh" |
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| 62 | |
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| 63 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 64 | |
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| 65 | G4LossTableBuilder::G4LossTableBuilder() |
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| 66 | {} |
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| 67 | |
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| 68 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 69 | |
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| 70 | G4LossTableBuilder::~G4LossTableBuilder() |
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| 71 | {} |
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| 72 | |
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| 73 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 74 | |
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| 75 | void G4LossTableBuilder::BuildDEDXTable(G4PhysicsTable* dedxTable, |
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| 76 | const std::vector<G4PhysicsTable*>& list) |
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| 77 | { |
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| 78 | size_t n_processes = list.size(); |
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| 79 | if(1 >= n_processes) return; |
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| 80 | |
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| 81 | size_t n_vectors = (list[0])->length(); |
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| 82 | if(0 >= n_vectors) return; |
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| 83 | |
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| 84 | G4bool b; |
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| 85 | |
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| 86 | G4PhysicsVector* pv = (*(list[0]))[0]; |
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| 87 | size_t nbins = pv->GetVectorLength(); |
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| 88 | G4double elow = pv->GetLowEdgeEnergy(0); |
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| 89 | G4double ehigh = pv->GetLowEdgeEnergy(nbins); |
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| 90 | for (size_t i=0; i<n_vectors; i++) { |
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| 91 | |
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| 92 | pv = new G4PhysicsLogVector(elow, ehigh, nbins); |
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| 93 | for (size_t j=0; j<nbins; j++) { |
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| 94 | G4double dedx = 0.0; |
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| 95 | G4double energy = pv->GetLowEdgeEnergy(j); |
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| 96 | |
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| 97 | for (size_t k=0; k<n_processes; k++) { |
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| 98 | dedx += ((*(list[k]))[i])->GetValue(energy, b); |
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| 99 | } |
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| 100 | pv->PutValue(j, dedx); |
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| 101 | G4PhysicsTableHelper::SetPhysicsVector(dedxTable, i, pv); |
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| 102 | } |
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| 103 | } |
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| 104 | } |
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| 105 | |
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| 106 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 107 | |
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| 108 | void G4LossTableBuilder::BuildRangeTable(const G4PhysicsTable* dedxTable, |
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| 109 | G4PhysicsTable* rangeTable, |
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| 110 | G4bool isIonisation) |
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| 111 | // Build range table from the energy loss table |
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| 112 | { |
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| 113 | size_t n_vectors = dedxTable->length(); |
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| 114 | if(!n_vectors) return; |
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| 115 | |
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| 116 | G4bool b; |
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| 117 | size_t n = 100; |
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| 118 | G4double del = 1.0/(G4double)n; |
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| 119 | |
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| 120 | for (size_t i=0; i<n_vectors; i++) { |
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| 121 | |
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| 122 | if (rangeTable->GetFlag(i) || !isIonisation) { |
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| 123 | G4PhysicsVector* pv = (*dedxTable)[i]; |
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| 124 | size_t nbins = pv->GetVectorLength(); |
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| 125 | size_t bin0 = 0; |
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| 126 | G4double elow = pv->GetLowEdgeEnergy(0); |
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| 127 | G4double ehigh = pv->GetLowEdgeEnergy(nbins); |
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| 128 | G4double dedx1 = pv->GetValue(elow, b); |
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| 129 | |
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| 130 | if(dedx1 == 0.0) { |
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| 131 | for (size_t k=1; k<nbins; k++) { |
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| 132 | bin0++; |
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| 133 | elow = pv->GetLowEdgeEnergy(k); |
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| 134 | dedx1 = pv->GetValue(elow, b); |
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| 135 | if(dedx1 > 0.0) break; |
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| 136 | } |
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| 137 | nbins -= bin0; |
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| 138 | } |
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| 139 | |
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| 140 | G4PhysicsLogVector* v = new G4PhysicsLogVector(elow, ehigh, nbins); |
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| 141 | |
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| 142 | G4double range = 2.*elow/dedx1; |
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| 143 | //G4double range = elow/dedx1; |
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| 144 | v->PutValue(0,range); |
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| 145 | G4double energy1 = elow; |
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| 146 | |
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| 147 | for (size_t j=1; j<nbins; j++) { |
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| 148 | |
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| 149 | G4double energy2 = pv->GetLowEdgeEnergy(j+bin0); |
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| 150 | G4double dedx2 = pv->GetValue(energy2, b); |
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| 151 | G4double de = (energy2 - energy1) * del; |
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| 152 | G4double energy = energy1 - de*0.5; |
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| 153 | |
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| 154 | G4bool yes = true; |
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| 155 | //G4bool yes = false; |
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| 156 | if(dedx1 < DBL_MIN || dedx2 < DBL_MIN) yes = false; |
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| 157 | |
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| 158 | G4double fac, f; |
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| 159 | |
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| 160 | if(yes) fac = std::log(dedx2/dedx1)/std::log(energy2/energy1); |
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| 161 | else fac = (dedx2 - dedx1)/(energy2 - energy1); |
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| 162 | |
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| 163 | for (size_t k=0; k<n; k++) { |
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| 164 | energy += de; |
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| 165 | if(yes) f = dedx1*std::exp(fac*std::log(energy/energy1)); |
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| 166 | else f = dedx1 + fac*(energy - energy1); |
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| 167 | if(f > DBL_MIN) range += de/f; |
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| 168 | } |
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| 169 | // G4cout << "Range i= " <<i << " j= " << j << G4endl; |
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| 170 | v->PutValue(j,range); |
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| 171 | energy1 = energy2; |
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| 172 | dedx1 = dedx2; |
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| 173 | } |
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| 174 | G4PhysicsTableHelper::SetPhysicsVector(rangeTable, i, v); |
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| 175 | } |
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| 176 | } |
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| 177 | } |
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| 178 | |
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| 179 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 180 | |
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| 181 | void G4LossTableBuilder::BuildInverseRangeTable(const G4PhysicsTable* rangeTable, |
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| 182 | G4PhysicsTable* invRangeTable, |
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| 183 | G4bool isIonisation) |
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| 184 | // Build inverse range table from the energy loss table |
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| 185 | { |
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| 186 | size_t n_vectors = rangeTable->length(); |
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| 187 | if(!n_vectors) return; |
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| 188 | G4bool b; |
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| 189 | |
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| 190 | for (size_t i=0; i<n_vectors; i++) { |
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| 191 | |
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| 192 | if (invRangeTable->GetFlag(i) || !isIonisation) { |
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| 193 | G4PhysicsVector* pv = (*rangeTable)[i]; |
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| 194 | size_t nbins = pv->GetVectorLength(); |
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| 195 | G4double elow = pv->GetLowEdgeEnergy(0); |
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| 196 | G4double ehigh = pv->GetLowEdgeEnergy(nbins-1); |
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| 197 | G4double rlow = pv->GetValue(elow, b); |
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| 198 | G4double rhigh = pv->GetValue(ehigh, b); |
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| 199 | |
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| 200 | rhigh *= std::exp(std::log(rhigh/rlow)/((G4double)(nbins-1))); |
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| 201 | |
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| 202 | |
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| 203 | G4LPhysicsFreeVector* v = new G4LPhysicsFreeVector(nbins,rlow,rhigh); |
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| 204 | for (size_t j=0; j<nbins; j++) { |
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| 205 | G4double e = pv->GetLowEdgeEnergy(j); |
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| 206 | G4double r = pv->GetValue(e, b); |
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| 207 | v->PutValues(j,r,e); |
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| 208 | } |
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| 209 | |
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| 210 | G4PhysicsTableHelper::SetPhysicsVector(invRangeTable, i, v); |
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| 211 | } |
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| 212 | } |
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| 213 | } |
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| 214 | |
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| 215 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 216 | |
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