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: G4hZiegler1977He |
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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 | // 10/05/2001 V.Ivanchenko Clean up againist Linux compilation with -Wall |
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41 | // 26/08/2004 V.Ivanchenko Fix a problem of effective charge |
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42 | // |
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43 | // Class Description: |
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44 | // |
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45 | // Electronic stopping power parametrised according to |
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46 | // J.F.Ziegler, Helium Stopping Powers and |
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47 | // Ranges in All Elemental Matter, Vol.4, Pergamon Press, 1977 |
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48 | // |
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49 | // Class Description: End |
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50 | // |
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51 | // ------------------------------------------------------------------- |
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52 | // |
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53 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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54 | |
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55 | #include "G4hZiegler1977He.hh" |
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56 | #include "G4UnitsTable.hh" |
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57 | #include "globals.hh" |
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58 | #include "G4Material.hh" |
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59 | |
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60 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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61 | |
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62 | G4hZiegler1977He::G4hZiegler1977He():G4VhElectronicStoppingPower(), |
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63 | rateMass(4.0026/1.007276) |
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64 | {;} |
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65 | |
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66 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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67 | |
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68 | G4hZiegler1977He::~G4hZiegler1977He() |
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69 | {;} |
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70 | |
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71 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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72 | |
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73 | G4bool G4hZiegler1977He::HasMaterial(const G4Material* material) |
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74 | { |
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75 | if(1 == (material->GetNumberOfElements())) return true; |
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76 | return false ; |
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77 | } |
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78 | |
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79 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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80 | |
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81 | G4double G4hZiegler1977He::StoppingPower(const G4Material* material, |
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82 | G4double kineticEnergy) |
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83 | { |
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84 | G4double ionloss = 0.0 ; |
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85 | |
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86 | // pure material (normally not the case for this function) |
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87 | if(1 == (material->GetNumberOfElements())) { |
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88 | G4double z = material->GetZ() ; |
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89 | ionloss = ElectronicStoppingPower( z, kineticEnergy ) ; |
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90 | |
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91 | } |
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92 | |
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93 | return ionloss ; |
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94 | } |
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95 | |
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96 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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97 | |
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98 | G4double G4hZiegler1977He::ElectronicStoppingPower(G4double z, |
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99 | G4double kineticEnergy) const |
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100 | { |
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101 | G4double ionloss ; |
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102 | G4int i = G4int(z)-1 ; // index of atom |
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103 | if(i < 0) i = 0 ; |
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104 | if(i > 91) i = 91 ; |
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105 | |
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106 | // The He4 data and the fit from: |
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107 | // J.F.Ziegler, Helium Stopping Powers and |
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108 | // Ranges in All Elemental Matter, Vol.4, Pergamon Press, 1977 |
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109 | |
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110 | G4double energy = kineticEnergy*rateMass/keV ; // reduced He energy in keV |
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111 | |
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112 | static G4double a[92][9] = { |
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113 | //H-Solid 0.9661,0.4126,6.92,8.831,2.582,2.371,0.5462,-0.07932,-0.006853, |
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114 | {0.39,0.63, 4.17, 85.55, 19.55, 2.371, 0.5462, -0.07932,-0.006853}, |
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115 | //He-Solid 2.027,0.2931,26.34,6.66,0.3409,2.809,0.4847,-0.08756,-0.007281, |
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116 | {0.58, 0.59, 6.3, 130.0, 44.07, 2.809, 0.4847, -0.08756,-0.007281}, |
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117 | {1.42, 0.49, 12.25,32., 9.161, 3.095, 0.4434, -0.09259,-0.007459}, |
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118 | {2.206, 0.51, 15.32, 0.25, 8.995, 3.28, 0.4188, -0.09564,-0.007604}, |
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119 | {3.691, 0.4128, 18.48,50.72, 9., 3.426, 0.4, -0.09796,-0.007715}, |
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120 | {4.232, 0.3877, 22.99,35., 7.993, 3.588, 0.3921, -0.09935,-0.007804}, |
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121 | //N-solid 2.51,0.4752,38.26,13.02,1.892,3.759,0.4094,-0.09646,-0.007661, |
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122 | {2.0, 0.548, 29.82,18.11, 4.37, 3.759, 0.4094, -0.09646,-0.007661}, |
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123 | //O-solid 1.766,0.5261,37.11,15.24,2.804,3.782,0.3734,-0.1011,-0.007874, |
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124 | {2.717, 0.4858, 32.88, 25.88, 4.336, 3.782, 0.3734, -0.1011, -0.007874}, |
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125 | {1.533, 0.531, 40.44,18.41, 2.718, 3.816, 0.3504, -0.1046, -0.008074}, |
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126 | //Ne-solid 1.183,0.55,39.83,17.49,4.001,3.863,0.3342,-0.1072,-0.008231, |
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127 | {2.303, 0.4861, 37.01, 37.96, 5.092, 3.863, 0.3342,-0.1072, -0.008231}, |
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128 | {9.894, 0.3081, 23.65, 0.384, 92.93, 3.898, 0.3191, -0.1086, -0.008271}, |
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129 | {4.3, 0.47, 34.3, 3.3, 12.74, 3.961, 0.314, -0.1091, -0.008297}, |
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130 | {2.5, 0.625, 45.7, 0.1, 4.359, 4.024, 0.3113, -0.1093, -0.008306}, |
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131 | {2.1, 0.65, 49.34, 1.788, 4.133, 4.077, 0.3074, -0.1089, -0.008219}, |
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132 | {1.729, 0.6562, 53.41, 2.405, 3.845, 4.124, 0.3023, -0.1094, -0.00824}, |
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133 | {1.402, 0.6791, 58.98, 3.528, 3.211, 4.164, 0.2964, -0.1101, -0.008267}, |
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134 | {1.117, 0.7044, 69.69, 3.705, 2.156, 4.21, 0.2936, -0.1103, -0.00827}, |
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135 | {0.9172,0.724, 79.44, 3.648, 1.646, 4.261, 0.2994, -0.1085, -0.008145}, |
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136 | {8.554, 0.3817, 83.61,11.84, 1.875, 4.3, 0.2903, -0.1103, -0.008259}, |
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137 | {6.297, 0.4622, 65.39,10.14, 5.036, 4.334, 0.2897, -0.1102, -0.008245}, |
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138 | {5.307, 0.4918, 61.74,12.4, 6.665, 4.327, 0.2707, -0.1127, -0.00837}, |
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139 | {4.71, 0.5087, 65.28, 8.806, 5.948, 4.34, 0.2618, -0.1138, -0.00842}, |
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140 | {6.151, 0.4524, 83., 18.31, 2.71, 4.361, 0.2559, -0.1145, -0.008447}, |
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141 | {6.57, 0.4322, 84.76,15.53, 2.779, 4.349, 0.24, -0.1166, -0.00855}, |
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142 | {5.738, 0.4492, 84.61,14.18, 3.101, 4.362, 0.2327, -0.1174, -0.008588}, |
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143 | {5.013, 0.4707, 85.58,16.55, 3.211, 4.375, 0.2253, -0.1185, -0.008648}, |
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144 | {4.32, 0.4947, 76.14,10.85, 5.441, 4.362, 0.2069, -0.1214, -0.008815}, |
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145 | {4.652, 0.4571, 80.73,22., 4.952, 4.346, 0.1857, -0.1249, -0.009021}, |
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146 | {3.114, 0.5236, 76.67, 7.62, 6.385, 4.355, 0.18, -0.1255, -0.009045}, |
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147 | {3.114, 0.5236, 76.67, 7.62, 7.502, 4.389, 0.1806, -0.1253, -0.009028}, |
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148 | {3.114, 0.5236, 76.67, 7.62, 8.514, 4.407, 0.1759, -0.1258, -0.009054}, |
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149 | {5.746, 0.4662, 79.24, 1.185, 7.993, 4.419, 0.1694, -0.1267, -0.009094}, |
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150 | {2.792, 0.6346,106.1, 0.2986, 2.331, 4.412, 0.1545, -0.1289, -0.009202}, |
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151 | {4.667, 0.5095,124.3, 2.102, 1.667, 4.419, 0.1448, -0.1303, -0.009269}, |
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152 | {2.44, 0.6346,105., 0.83, 2.851, 4.436, 0.1443, -0.1299, -0.009229}, |
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153 | {1.491, 0.7118,120.6, 1.101, 1.877, 4.478, 0.1608, -0.1262, -0.008983}, |
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154 | {11.72, 0.3826,102.8, 9.231, 4.371, 4.489, 0.1517, -0.1278, -0.009078}, |
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155 | {7.126, 0.4804,119.3, 5.784, 2.454, 4.514, 0.1551, -0.1268, -0.009005}, |
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156 | {11.61, 0.3955,146.7, 7.031, 1.423, 4.533, 0.1568, -0.1261, -0.008945}, |
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157 | {10.99, 0.41, 163.9, 7.1, 1.052, 4.548, 0.1572, -0.1256, -0.008901}, |
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158 | {9.241, 0.4275,163.1, 7.954, 1.102, 4.553, 0.1544, -0.1255, -0.008883}, |
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159 | {9.276, 0.418, 157.1, 8.038, 1.29, 4.548, 0.1485, -0.1259, -0.008889}, |
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160 | {3.999, 0.6152, 97.6, 1.297, 5.792, 4.489, 0.1128, -0.1309, -0.009107}, |
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161 | {4.306, 0.5658, 97.99, 5.514, 5.754, 4.402, 0.06656, -0.1375, -0.009421}, |
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162 | {3.615, 0.6197, 86.26, 0.333, 8.689, 4.292, 0.01012, -0.1459, -0.009835}, |
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163 | {5.8, 0.49, 147.2, 6.903, 1.289, 4.187,-0.04539, -0.1542, -0.01025}, |
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164 | {5.6, 0.49, 130., 10., 2.844, 4.577, 0.13, -0.1285, -0.009067}, |
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165 | {3.55, 0.6068,124.7, 1.112, 3.119, 4.583, 0.1253, -0.1291, -0.009084}, |
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166 | {3.6, 0.62, 105.8, 0.1692, 6.026, 4.58, 0.1174, -0.1301, -0.009129}, |
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167 | {5.4, 0.53, 103.1, 3.931, 7.767, 4.581, 0.111, -0.1309, -0.009161}, |
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168 | {3.97, 0.6459,131.8, 0.2233, 2.723, 4.582, 0.1046, -0.1317, -0.009193}, |
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169 | {3.65, 0.64, 126.8, 0.6834, 3.411, 4.6, 0.1052, -0.1315, -0.009178}, |
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170 | {3.118, 0.6519,164.9, 1.208, 1.51, 4.614, 0.1043, -0.1315, -0.009175}, |
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171 | {2.031, 0.7181,153.1, 1.362, 1.958, 4.619, 0.09769, -0.1325, -0.009231}, |
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172 | {14.4, 0.3923,152.5, 8.354, 2.597, 4.671, 0.1136, -0.1298, -0.009078}, |
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173 | {10.99, 0.4599,138.4, 4.811, 3.726, 4.706, 0.1206, -0.1287, -0.009009}, |
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174 | {16.6, 0.3773,224.1, 6.28, 0.9121,4.732, 0.1244, -0.128, -0.008968}, |
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175 | {10.54, 0.4533,159.3, 4.832, 2.529, 4.722, 0.1156, -0.1292, -0.00903}, |
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176 | {10.33, 0.4502,162., 5.132, 2.444, 4.71, 0.106, -0.1305, -0.0091}, |
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177 | {10.15, 0.4471,165.6, 5.378, 2.328, 4.698, 0.09647, -0.1319, -0.009169}, |
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178 | {9.976, 0.4439,168., 5.721, 2.258, 4.681, 0.08536, -0.1335, -0.009252}, |
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179 | {9.804, 0.4408,176.2, 5.675, 1.997, 4.676, 0.07819, -0.1345, -0.009302}, |
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180 | {14.22, 0.363, 228.4, 7.024, 1.016, 4.663, 0.06867, -0.1358, -0.009373}, |
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181 | {9.952, 0.4318,233.5, 5.065, 0.9244,4.676, 0.06861, -0.1357, -0.009363}, |
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182 | {9.272, 0.4345,210., 4.911, 1.258, 4.649, 0.05362, -0.1379, -0.00948}, |
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183 | {10.13, 0.4146,225.7, 5.525, 1.055, 4.634, 0.04335, -0.1394, -0.009558}, |
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184 | {8.949, 0.4304,213.3, 5.071, 1.221, 4.603, 0.02679, -0.1418, -0.00969}, |
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185 | {11.94, 0.3783,247.2, 6.655, 0.849, 4.584, 0.01494, -0.1436, -0.009783}, |
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186 | {8.472, 0.4405,195.5, 4.051, 1.604, 4.576, 0.007043, -0.1447, -0.009841}, |
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187 | {8.301, 0.4399,203.7, 3.667, 1.459, 4.571, 0.0007046,-0.1456, -0.009886}, |
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188 | {6.567, 0.4858,193., 2.65, 1.66, 4.566,-0.005626, -0.1464, -0.00993}, |
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189 | {5.951, 0.5016,196.1, 2.662, 1.589, 4.561,-0.01197, -0.1473, -0.009975}, |
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190 | {7.495, 0.4523,251.4, 3.433, 0.8619,4.572,-0.012, -0.1472, -0.009965}, |
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191 | {6.335, 0.4825,255.1, 2.834, 0.8228,4.569,-0.01755, -0.148, -0.01}, |
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192 | {4.314, 0.5558,214.8, 2.354, 1.263, 4.573,-0.01992, -0.1482, -0.01001}, |
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193 | {4.02, 0.5681,219.9, 2.402, 1.191, 4.57, -0.02547, -0.149, -0.01005}, |
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194 | {3.836, 0.5765,210.2, 2.742, 1.305, 4.528,-0.04613, -0.1521, -0.01022}, |
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195 | {4.68, 0.5247,244.7, 2.749, 0.8962,4.494,-0.0637, -0.1548, -0.01037}, |
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196 | {3.223, 0.5883,232.7, 2.954, 1.05, 4.564,-0.027, -0.1471, -0.009852}, |
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197 | {2.892, 0.6204,208.6, 2.415, 1.416, 4.546,-0.04963, -0.1523, -0.01022}, |
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198 | {4.728, 0.5522,217., 3.091, 1.386, 4.594,-0.03339, -0.1496, -0.01006}, |
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199 | {6.18, 0.52, 170., 4., 3.224, 4.608,-0.02886, -0.1485, -0.00999}, |
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200 | {9., 0.47, 198., 3.8, 2.032, 4.624,-0.02639, -0.1481, -0.009971}, |
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201 | {2.324, 0.6997,216., 1.599, 1.399, 4.636,-0.02422, -0.1477, -0.009939}, |
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202 | {1.961, 0.7286,223., 1.621, 1.296, 4.648,-0.02172, -0.1471, -0.009903}, |
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203 | {1.75, 0.7427,350.1, 0.9789, 0.5507,4.662,-0.1192, -0.1752, -0.01196}, |
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204 | {10.31, 0.4613,261.2, 4.738, 0.9899,4.69, -0.009867, -0.1449, -0.009771}, |
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205 | {7.962, 0.519, 235.7, 4.347, 1.313, 4.715,-0.002113, -0.1435, -0.009689}, |
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206 | {6.227, 0.5645,231.9, 3.961, 1.379, 4.729, 0.001392, -0.1428, -0.009644}, |
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207 | {5.246, 0.5947,228.6, 4.027, 1.423, 4.729,-0.0005983,-0.143, -0.009647}, |
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208 | {5.408, 0.5811,235.7, 3.961, 1.358, 4.738, 0.001075, -0.1425, -0.009618}, |
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209 | {5.218, 0.5828,245., 3.838, 1.25, 4.751, 0.004244, -0.1419, -0.009576} |
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210 | }; |
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211 | |
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212 | if ( energy < 1.0 ) { |
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213 | G4double slow = a[i][0] ; |
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214 | G4double shigh = std::log( 1.0 + a[i][3]*1000.0 + a[i][4]*0.001 ) |
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215 | * a[i][2]*1000.0 ; |
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216 | ionloss = slow*shigh / (slow + shigh) ; |
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217 | ionloss *= std::sqrt(energy) ; |
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218 | |
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219 | } else if ( energy < 10000.0 ) { |
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220 | G4double slow = a[i][0] * std::pow(energy, a[i][1]) ; |
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221 | G4double e = energy/1000.0 ; |
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222 | G4double shigh = std::log( 1.0 + a[i][3]/e + a[i][4]*e ) * a[i][2]/e ; |
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223 | ionloss = slow*shigh / (slow + shigh) ; |
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224 | |
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225 | } else { |
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226 | G4double le = std::log(1000.0/energy) ; |
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227 | ionloss = std::exp( a[i][5] + a[i][6]*le + a[i][7]*le*le + a[i][8]*le*le*le) ; |
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228 | } |
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229 | |
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230 | if ( ionloss < 0.0) ionloss = 0.0 ; |
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231 | |
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232 | ionloss /= HeEffChargeSquare(z, kineticEnergy*rateMass); |
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233 | |
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234 | return ionloss; |
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235 | } |
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236 | |
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