| 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 file |
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| 30 | // |
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| 31 | // |
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| 32 | // File name: G4hICRU49He |
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| 33 | // |
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| 34 | // Author: V.Ivanchenko (Vladimir.Ivanchenko@cern.ch) |
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| 35 | // |
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| 36 | // Creation date: 20 July 2000 |
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| 37 | // |
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| 38 | // Modifications: |
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| 39 | // 20/07/2000 V.Ivanchenko First implementation |
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| 40 | // 18/09/2000 V.Ivanchenko clean up - all variable are the same as in ICRU |
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| 41 | // 03/10/2000 V.Ivanchenko clean up accoding to CodeWizard |
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| 42 | // 10/05/2001 V.Ivanchenko Clean up againist Linux compilation with -Wall |
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| 43 | // 26/08/2004 V.Ivanchenko Fix a problem of effective charge |
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| 44 | // |
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| 45 | // Class Description: |
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| 46 | // |
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| 47 | // Electronic stopping power parametrised according to |
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| 48 | // ICRU Report N49, 1993. J.F. Ziegler model for He ion. |
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| 49 | // |
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| 50 | // Class Description: End |
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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 | |
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| 56 | #include "G4hICRU49He.hh" |
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| 57 | #include "G4UnitsTable.hh" |
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| 58 | #include "globals.hh" |
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| 59 | #include "G4Material.hh" |
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| 60 | |
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| 61 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 62 | |
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| 63 | G4hICRU49He::G4hICRU49He():G4VhElectronicStoppingPower(), |
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| 64 | rateMass(4.0026/1.007276), |
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| 65 | iMolecula(0) |
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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 | G4hICRU49He::~G4hICRU49He() |
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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 | G4bool G4hICRU49He::HasMaterial(const G4Material* material) |
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| 76 | { |
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| 77 | G4String chFormula = material->GetChemicalFormula() ; |
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| 78 | G4String myFormula = G4String(" "); |
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| 79 | |
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| 80 | if (myFormula == chFormula ) { |
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| 81 | if(1 == (material->GetNumberOfElements())) {return true;} |
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| 82 | return false ; |
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| 83 | } |
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| 84 | |
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| 85 | // ICRU Report N49, 1993. Power's model for He. |
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| 86 | const size_t numberOfMolecula = 30 ; |
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| 87 | static G4String name[numberOfMolecula] = { |
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| 88 | "H_2", "Be-Solid", "C-Solid", "Graphite", "N_2", |
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| 89 | "O_2", "Al-Solid", "Si-Solid", "Ar-Solid", "Cu-Solid", |
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| 90 | "Ge", "W-Solid", "Au-Solid", "Pb-Solid", "C_2H_2", |
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| 91 | "CO_2", "Cellulose-Nitrat", "C_2H_4", "LiF", |
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| 92 | "CH_4", "Nylon", "Polycarbonate", "(CH_2)_N-Polyetilene", "PMMA", |
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| 93 | "(C_8H_8)_N", "SiO_2", "CsI", "H_2O", "H_2O-Gas"} ; |
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| 94 | |
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| 95 | // Special treatment for water in gas state |
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| 96 | |
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| 97 | myFormula = G4String("H_2O") ; |
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| 98 | const G4State theState = material->GetState() ; |
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| 99 | if( theState == kStateGas && myFormula == chFormula) { |
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| 100 | chFormula = G4String("H_2O-Gas"); |
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| 101 | } |
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| 102 | |
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| 103 | // Search for the material in the table |
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| 104 | for (size_t i=0; i<numberOfMolecula; i++) { |
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| 105 | if (chFormula == name[i]) { |
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| 106 | SetMoleculaNumber(i) ; |
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| 107 | return true ; |
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| 108 | } |
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| 109 | } |
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| 110 | return false ; |
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| 111 | } |
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| 112 | |
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| 113 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 114 | |
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| 115 | G4double G4hICRU49He::StoppingPower(const G4Material* material, |
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| 116 | G4double kineticEnergy) |
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| 117 | { |
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| 118 | G4double ionloss = 0.0 ; |
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| 119 | |
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| 120 | // pure material (normally not the case for this function) |
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| 121 | if(1 == (material->GetNumberOfElements())) { |
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| 122 | G4double z = material->GetZ() ; |
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| 123 | ionloss = ElectronicStoppingPower( z, kineticEnergy ) ; |
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| 124 | |
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| 125 | // The data and the fit from: |
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| 126 | // ICRU Report N49, 1993. Power's model for He. |
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| 127 | } else if ( iMolecula < 30 ) { |
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| 128 | |
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| 129 | // Reduced kinetic energy |
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| 130 | // in internal units of parametrisation formula (MeV) |
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| 131 | G4double T = kineticEnergy*rateMass/MeV ; |
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| 132 | |
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| 133 | static G4double c[30][7] = { |
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| 134 | {8.0080, 3.6287, 23.0700, 14.9900, 0.8507, 0.60, 2.0 |
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| 135 | },{ 13.3100, 3.7432, 39.4130, 12.1990, 1.0950, 0.38, 1.4 |
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| 136 | },{ 22.7240, 3.6040, 47.1810, 17.5490, 0.9040, 0.40, 1.4 |
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| 137 | },{ 24.4040, 2.4032, 48.9440, 27.9730, 1.2933, 0.40, 1.6 |
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| 138 | },{ 58.4719, 1.5115, 77.6421, 102.490, 1.5811, 0.50, 2.0 |
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| 139 | },{ 60.5408, 1.6297, 91.7601, 94.1260, 1.3662, 0.50, 2.0 |
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| 140 | },{ 48.4480, 6.4323, 59.2890, 18.3810, 0.4937, 0.48, 1.6 |
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| 141 | },{ 59.0346, 5.1305, 47.0866, 30.0857, 0.3500, 0.60, 2.0 |
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| 142 | },{ 71.8691, 2.8250, 51.1658, 57.1235, 0.4477, 0.60, 2.0 |
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| 143 | },{ 78.3520, 4.0961, 136.731, 28.4470, 1.0621, 0.52, 1.2 |
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| 144 | },{ 120.553, 1.5374, 49.8740, 82.2980, 0.8733, 0.45, 1.6 |
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| 145 | },{ 249.896, 0.6996, -37.274, 248.592, 1.1052, 0.50, 1.5 |
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| 146 | },{ 246.698, 0.6219, -58.391, 292.921, 0.8186, 0.56, 1.8 |
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| 147 | },{ 248.563, 0.6235, -36.8968, 306.960, 1.3214, 0.50, 2.0 |
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| 148 | },{ 25.5860, 1.7125, 154.723, 118.620, 2.2580, 0.50, 2.0 |
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| 149 | },{ 138.294, 25.6413, 231.873, 17.3780, 0.3218, 0.58, 1.3 |
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| 150 | },{ 83.2091, 1.1294, 135.7457, 190.865, 2.3461, 0.50, 2.0 |
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| 151 | },{ 263.542, 1.4754, 1541.446, 781.898, 1.9209, 0.40, 2.0 |
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| 152 | },{ 59.5545, 1.5354, 132.1523, 153.3537, 2.0262, 0.50, 2.0 |
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| 153 | },{ 31.7380, 19.820, 125.2100, 6.8910, 0.7242, 0.50, 1.1 |
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| 154 | },{ 31.7549, 1.5682, 97.4777, 106.0774, 2.3204, 0.50, 2.0 |
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| 155 | },{ 230.465, 4.8967, 1845.320, 358.641, 1.0774, 0.46, 1.2 |
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| 156 | },{ 423.444, 5.3761, 1189.114, 319.030, 0.7652, 0.48, 1.5 |
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| 157 | },{ 86.3410, 3.3322, 91.0433, 73.1091, 0.4650, 0.50, 2.0 |
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| 158 | },{ 146.105, 9.4344, 515.1500, 82.8860, 0.6239, 0.55, 1.5 |
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| 159 | },{ 238.050, 5.6901, 372.3575, 146.1835, 0.3992, 0.50, 2.0 |
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| 160 | },{ 124.2338, 2.6730, 133.8175, 99.4109, 0.7776, 0.50, 2.0 |
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| 161 | },{ 221.723, 1.5415, 87.7315, 192.5266, 1.0742, 0.50, 2.0 |
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| 162 | },{ 26.7537, 1.3717, 90.8007, 77.1587, 2.3264, 0.50, 2.0 |
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| 163 | },{ 37.6121, 1.8052, 73.0250, 66.2070, 1.4038, 0.50, 2.0} }; |
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| 164 | |
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| 165 | G4double a1,a2 ; |
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| 166 | |
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| 167 | // Free electron gas model |
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| 168 | if ( T < 0.001 ) { |
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| 169 | G4double T0 = 0.001 ; |
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| 170 | a1 = 1.0 - std::exp(-c[iMolecula][1]*std::pow(T0,-2.0+c[iMolecula][5])) ; |
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| 171 | a2 = (c[iMolecula][0]*std::log(T0)/T0 + c[iMolecula][2]/T0) * |
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| 172 | std::exp(-c[iMolecula][4]*std::pow(T0,-c[iMolecula][6])) + |
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| 173 | c[iMolecula][3]/(T0*T0) ; |
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| 174 | |
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| 175 | ionloss *= std::sqrt(T/T0) ; |
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| 176 | |
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| 177 | // Main parametrisation |
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| 178 | } else { |
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| 179 | a1 = 1.0 - std::exp(-c[iMolecula][1]*std::pow(T,-2.0+c[iMolecula][5])) ; |
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| 180 | a2 = (c[iMolecula][0]*std::log(T)/T + c[iMolecula][2]/T) * |
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| 181 | std::exp(-c[iMolecula][4]*std::pow(T,-c[iMolecula][6])) + |
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| 182 | c[iMolecula][3]/(T*T) ; |
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| 183 | } |
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| 184 | |
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| 185 | // He effective charge |
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| 186 | G4double z = (material->GetTotNbOfElectPerVolume()) / |
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| 187 | (material->GetTotNbOfAtomsPerVolume()) ; |
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| 188 | |
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| 189 | ionloss = a1*a2 / HeEffChargeSquare(z, kineticEnergy*rateMass) ; |
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| 190 | |
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| 191 | if ( ionloss < 0.0) ionloss = 0.0 ; |
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| 192 | } |
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| 193 | |
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| 194 | return ionloss ; |
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| 195 | } |
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| 196 | |
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| 197 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 198 | |
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| 199 | G4double G4hICRU49He::ElectronicStoppingPower(G4double z, |
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| 200 | G4double kineticEnergy) const |
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| 201 | { |
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| 202 | G4double ionloss ; |
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| 203 | G4int i = G4int(z)-1 ; // index of atom |
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| 204 | if(i < 0) i = 0 ; |
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| 205 | if(i > 91) i = 91 ; |
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| 206 | |
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| 207 | // The data and the fit from: |
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| 208 | // ICRU Report 49, 1993. Ziegler's type of parametrisations |
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| 209 | // Reduced kinetic energy |
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| 210 | |
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| 211 | // He energy in internal units of parametrisation formula (MeV) |
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| 212 | G4double T = kineticEnergy*rateMass/MeV ; |
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| 213 | |
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| 214 | static G4double a[92][5] = { |
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| 215 | {0.35485, 0.6456, 6.01525, 20.8933, 4.3515 |
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| 216 | },{ 0.58, 0.59, 6.3, 130.0, 44.07 |
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| 217 | },{ 1.42, 0.49, 12.25, 32.0, 9.161 |
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| 218 | },{ 2.1895, 0.47183,7.2362, 134.30, 197.96 |
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| 219 | },{ 3.691, 0.4128, 18.48, 50.72, 9.0 |
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| 220 | },{ 3.83523, 0.42993,12.6125, 227.41, 188.97 |
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| 221 | },{ 1.9259, 0.5550, 27.15125, 26.0665, 6.2768 |
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| 222 | },{ 2.81015, 0.4759, 50.0253, 10.556, 1.0382 |
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| 223 | },{ 1.533, 0.531, 40.44, 18.41, 2.718 |
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| 224 | },{ 2.303, 0.4861, 37.01, 37.96, 5.092 |
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| 225 | },{ 9.894, 0.3081, 23.65, 0.384, 92.93 |
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| 226 | },{ 4.3, 0.47, 34.3, 3.3, 12.74 |
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| 227 | },{ 2.5, 0.625, 45.7, 0.1, 4.359 |
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| 228 | },{ 2.1, 0.65, 49.34, 1.788, 4.133 |
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| 229 | },{ 1.729, 0.6562, 53.41, 2.405, 3.845 |
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| 230 | },{ 1.402, 0.6791, 58.98, 3.528, 3.211 |
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| 231 | },{ 1.117, 0.7044, 69.69, 3.705, 2.156 |
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| 232 | },{ 2.291, 0.6284, 73.88, 4.478, 2.066 |
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| 233 | },{ 8.554, 0.3817, 83.61, 11.84, 1.875 |
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| 234 | },{ 6.297, 0.4622, 65.39, 10.14, 5.036 |
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| 235 | },{ 5.307, 0.4918, 61.74, 12.4, 6.665 |
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| 236 | },{ 4.71, 0.5087, 65.28, 8.806, 5.948 |
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| 237 | },{ 6.151, 0.4524, 83.0, 18.31, 2.71 |
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| 238 | },{ 6.57, 0.4322, 84.76, 15.53, 2.779 |
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| 239 | },{ 5.738, 0.4492, 84.6, 14.18, 3.101 |
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| 240 | },{ 5.013, 0.4707, 85.8, 16.55, 3.211 |
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| 241 | },{ 4.32, 0.4947, 76.14, 10.85, 5.441 |
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| 242 | },{ 4.652, 0.4571, 80.73, 22.0, 4.952 |
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| 243 | },{ 3.114, 0.5236, 76.67, 7.62, 6.385 |
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| 244 | },{ 3.114, 0.5236, 76.67, 7.62, 7.502 |
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| 245 | },{ 3.114, 0.5236, 76.67, 7.62, 8.514 |
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| 246 | },{ 5.746, 0.4662, 79.24, 1.185, 7.993 |
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| 247 | },{ 2.792, 0.6346, 106.1, 0.2986, 2.331 |
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| 248 | },{ 4.667, 0.5095, 124.3, 2.102, 1.667 |
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| 249 | },{ 2.44, 0.6346, 105.0, 0.83, 2.851 |
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| 250 | },{ 1.413, 0.7377, 147.9, 1.466, 1.016 |
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| 251 | },{ 11.72, 0.3826, 102.8, 9.231, 4.371 |
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| 252 | },{ 7.126, 0.4804, 119.3, 5.784, 2.454 |
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| 253 | },{ 11.61, 0.3955, 146.7, 7.031, 1.423 |
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| 254 | },{ 10.99, 0.41, 163.9, 7.1, 1.052 |
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| 255 | },{ 9.241, 0.4275, 163.1, 7.954, 1.102 |
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| 256 | },{ 9.276, 0.418, 157.1, 8.038, 1.29 |
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| 257 | },{ 3.999, 0.6152, 97.6, 1.297, 5.792 |
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| 258 | },{ 4.306, 0.5658, 97.99, 5.514, 5.754 |
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| 259 | },{ 3.615, 0.6197, 86.26, 0.333, 8.689 |
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| 260 | },{ 5.8, 0.49, 147.2, 6.903, 1.289 |
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| 261 | },{ 5.6, 0.49, 130.0, 10.0, 2.844 |
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| 262 | },{ 3.55, 0.6068, 124.7, 1.112, 3.119 |
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| 263 | },{ 3.6, 0.62, 105.8, 0.1692, 6.026 |
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| 264 | },{ 5.4, 0.53, 103.1, 3.931, 7.767 |
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| 265 | },{ 3.97, 0.6459, 131.8, 0.2233, 2.723 |
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| 266 | },{ 3.65, 0.64, 126.8, 0.6834, 3.411 |
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| 267 | },{ 3.118, 0.6519, 164.9, 1.208, 1.51 |
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| 268 | },{ 3.949, 0.6209, 200.5, 1.878, 0.9126 |
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| 269 | },{ 14.4, 0.3923, 152.5, 8.354, 2.597 |
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| 270 | },{ 10.99, 0.4599, 138.4, 4.811, 3.726 |
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| 271 | },{ 16.6, 0.3773, 224.1, 6.28, 0.9121 |
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| 272 | },{ 10.54, 0.4533, 159.3, 4.832, 2.529 |
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| 273 | },{ 10.33, 0.4502, 162.0, 5.132, 2.444 |
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| 274 | },{ 10.15, 0.4471, 165.6, 5.378, 2.328 |
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| 275 | },{ 9.976, 0.4439, 168.0, 5.721, 2.258 |
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| 276 | },{ 9.804, 0.4408, 176.2, 5.675, 1.997 |
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| 277 | },{ 14.22, 0.363, 228.4, 7.024, 1.016 |
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| 278 | },{ 9.952, 0.4318, 233.5, 5.065, 0.9244 |
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| 279 | },{ 9.272, 0.4345, 210.0, 4.911, 1.258 |
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| 280 | },{ 10.13, 0.4146, 225.7, 5.525, 1.055 |
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| 281 | },{ 8.949, 0.4304, 213.3, 5.071, 1.221 |
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| 282 | },{ 11.94, 0.3783, 247.2, 6.655, 0.849 |
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| 283 | },{ 8.472, 0.4405, 195.5, 4.051, 1.604 |
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| 284 | },{ 8.301, 0.4399, 203.7, 3.667, 1.459 |
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| 285 | },{ 6.567, 0.4858, 193.0, 2.65, 1.66 |
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| 286 | },{ 5.951, 0.5016, 196.1, 2.662, 1.589 |
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| 287 | },{ 7.495, 0.4523, 251.4, 3.433, 0.8619 |
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| 288 | },{ 6.335, 0.4825, 255.1, 2.834, 0.8228 |
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| 289 | },{ 4.314, 0.5558, 214.8, 2.354, 1.263 |
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| 290 | },{ 4.02, 0.5681, 219.9, 2.402, 1.191 |
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| 291 | },{ 3.836, 0.5765, 210.2, 2.742, 1.305 |
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| 292 | },{ 4.68, 0.5247, 244.7, 2.749, 0.8962 |
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| 293 | },{ 3.223, 0.5883, 232.7, 2.954, 1.05 |
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| 294 | },{ 2.892, 0.6204, 208.6, 2.415, 1.416 |
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| 295 | },{ 4.728, 0.5522, 217.0, 3.091, 1.386 |
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| 296 | },{ 6.18, 0.52, 170.0, 4.0, 3.224 |
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| 297 | },{ 9.0, 0.47, 198.0, 3.8, 2.032 |
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| 298 | },{ 2.324, 0.6997, 216.0, 1.599, 1.399 |
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| 299 | },{ 1.961, 0.7286, 223.0, 1.621, 1.296 |
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| 300 | },{ 1.75, 0.7427, 350.1, 0.9789, 0.5507 |
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| 301 | },{ 10.31, 0.4613, 261.2, 4.738, 0.9899 |
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| 302 | },{ 7.962, 0.519, 235.7, 4.347, 1.313 |
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| 303 | },{ 6.227, 0.5645, 231.9, 3.961, 1.379 |
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| 304 | },{ 5.246, 0.5947, 228.6, 4.027, 1.432 |
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| 305 | },{ 5.408, 0.5811, 235.7, 3.961, 1.358 |
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| 306 | },{ 5.218, 0.5828, 245.0, 3.838, 1.25} |
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| 307 | }; |
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| 308 | |
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| 309 | // Free electron gas model |
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| 310 | if ( T < 0.001 ) { |
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| 311 | G4double slow = a[i][0] ; |
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| 312 | G4double shigh = std::log( 1.0 + a[i][3]*1000.0 + a[i][4]*0.001 ) |
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| 313 | * a[i][2]*1000.0 ; |
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| 314 | ionloss = slow*shigh / (slow + shigh) ; |
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| 315 | ionloss *= std::sqrt(T*1000.0) ; |
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| 316 | |
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| 317 | // Main parametrisation |
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| 318 | } else { |
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| 319 | G4double slow = a[i][0] * std::pow((T*1000.0), a[i][1]) ; |
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| 320 | G4double shigh = std::log( 1.0 + a[i][3]/T + a[i][4]*T ) * a[i][2]/T ; |
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| 321 | ionloss = slow*shigh / (slow + shigh) ; |
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| 322 | |
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| 323 | } |
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| 324 | if ( ionloss < 0.0) ionloss = 0.0 ; |
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| 325 | |
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| 326 | // He effective charge |
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| 327 | ionloss /= HeEffChargeSquare(z, kineticEnergy*rateMass) ; |
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| 328 | |
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| 329 | return ionloss; |
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| 330 | } |
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