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 | #include "G4EvaporationInuclCollider.hh" |
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27 | #include "G4InuclElementaryParticle.hh" |
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28 | #include "G4LorentzConvertor.hh" |
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29 | #include "G4ParticleLargerEkin.hh" |
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30 | #include <algorithm> |
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31 | |
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32 | typedef std::vector<G4InuclElementaryParticle>::iterator particleIterator; |
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33 | typedef std::vector<G4InuclNuclei>::iterator nucleiIterator; |
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34 | |
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35 | G4EvaporationInuclCollider::G4EvaporationInuclCollider() |
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36 | : verboseLevel(0) { |
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37 | |
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38 | if (verboseLevel > 3) { |
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39 | G4cout << " >>> G4EvaporationInuclCollider::G4EvaporationInuclCollider" << G4endl; |
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40 | } |
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41 | } |
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42 | |
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43 | G4CollisionOutput G4EvaporationInuclCollider::collide(G4InuclParticle* /*bullet*/, G4InuclParticle* target) { |
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44 | |
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45 | verboseLevel = 0; |
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46 | if (verboseLevel > 3) { |
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47 | G4cout << " >>> G4EvaporationInuclCollider::evaporate" << G4endl; |
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48 | } |
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49 | |
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50 | G4CollisionOutput globalOutput; |
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51 | |
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52 | G4LorentzConvertor convertToTargetRestFrame; |
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53 | G4InuclNuclei* ntarget = dynamic_cast<G4InuclNuclei*>(target); |
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54 | convertToTargetRestFrame.setTarget(ntarget->getMomentum(), ntarget->getMass()); |
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55 | |
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56 | G4double at = ntarget->getA(); |
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57 | G4double zt = ntarget->getZ(); |
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58 | G4double eEx = ntarget->getExitationEnergy(); |
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59 | |
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60 | G4CascadeMomentum bmom; |
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61 | bmom[3] = convertToTargetRestFrame.getTRSMomentum(); |
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62 | |
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63 | G4InuclNuclei targ(at, zt); |
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64 | G4CascadeMomentum tmom; |
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65 | targ.setExitationEnergy(eEx); |
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66 | targ.setMomentum(tmom); |
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67 | targ.setEnergy(); |
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68 | |
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69 | targ.printParticle(); |
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70 | |
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71 | G4CollisionOutput output; |
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72 | output = theEquilibriumEvaporator->collide(0, &targ); |
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73 | |
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74 | G4CollisionOutput TRFoutput; |
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75 | TRFoutput.addOutgoingParticles(output.getOutgoingParticles()); |
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76 | TRFoutput.addTargetFragments(output.getNucleiFragments()); |
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77 | |
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78 | if (verboseLevel > 3) { |
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79 | G4cout << " After EquilibriumEvaporator " << G4endl; |
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80 | output.printCollisionOutput(); |
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81 | }; |
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82 | |
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83 | |
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84 | std::vector<G4InuclElementaryParticle> particles = TRFoutput.getOutgoingParticles(); |
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85 | std::vector<G4InuclNuclei> nucleus = TRFoutput.getNucleiFragments(); |
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86 | |
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87 | globalOutput.addOutgoingParticles(particles); |
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88 | globalOutput.addTargetFragments(nucleus); |
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89 | |
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90 | if (verboseLevel > 3) G4cout << "G4EvaporationInuclCollider::collide end" << G4endl; |
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91 | |
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92 | |
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93 | return globalOutput; |
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94 | |
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95 | } |
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96 | |
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97 | |
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98 | G4bool G4EvaporationInuclCollider::inelasticInteractionPossible(G4InuclParticle* bullet, |
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99 | G4InuclParticle* target, |
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100 | G4double ekin) const { |
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101 | |
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102 | if (verboseLevel > 3) { |
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103 | G4cout << " >>> G4EvaporationInuclCollider::inelasticInteractionPossible" << G4endl; |
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104 | } |
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105 | |
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106 | const G4double coeff = 0.001 * 1.2; |
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107 | const G4double one_third = 1.0 / 3.0; |
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108 | |
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109 | G4bool possible = true; |
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110 | G4double at; |
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111 | G4double zt; |
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112 | G4double ab; |
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113 | G4double zb; |
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114 | |
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115 | if (G4InuclNuclei* nuclei_target = dynamic_cast<G4InuclNuclei*>(target)) { |
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116 | at = nuclei_target->getA(); |
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117 | zt = nuclei_target->getZ(); |
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118 | if (G4InuclNuclei* nuclei_bullet = dynamic_cast<G4InuclNuclei*>(bullet)) { |
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119 | ab = nuclei_bullet->getA(); |
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120 | zb = nuclei_bullet->getZ(); |
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121 | } else { |
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122 | G4InuclElementaryParticle* particle = |
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123 | dynamic_cast<G4InuclElementaryParticle*>(bullet); |
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124 | |
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125 | ab = 1; |
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126 | zb = particle->getCharge(); |
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127 | }; |
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128 | } else { |
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129 | if(G4InuclNuclei* nuclei_bullet = dynamic_cast<G4InuclNuclei*>(bullet)) { |
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130 | ab = nuclei_bullet->getA(); |
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131 | zb = nuclei_bullet->getZ(); |
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132 | |
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133 | G4InuclElementaryParticle* particle = |
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134 | dynamic_cast<G4InuclElementaryParticle*>(target); |
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135 | |
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136 | at = 1; |
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137 | zt = particle->getCharge(); |
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138 | } else { |
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139 | |
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140 | return possible; |
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141 | }; |
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142 | }; |
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143 | |
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144 | // VCOL used for testing if elastic collision possible |
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145 | G4double VCOL = coeff * zt * zb / (std::pow(at, one_third) + std::pow(ab, one_third)); |
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146 | |
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147 | // possible = VCOL < ekin; // NOTE: inelastic collision if not true |
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148 | possible = true; // we force elastic |
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149 | |
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150 | if (verboseLevel > 3) { |
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151 | G4cout << " >>> G4EvaporationInuclCollider::inelasticInteractionPossible" << G4endl; |
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152 | G4cout << " VCOL: " << VCOL << " ekin: " << ekin << " inelastic possible: " << possible << G4endl; |
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153 | } |
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154 | |
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155 | return possible; |
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156 | |
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157 | } |
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158 | |
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159 | G4InteractionCase G4EvaporationInuclCollider::bulletTargetSetter(G4InuclParticle* bullet, |
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160 | G4InuclParticle* target) const { |
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161 | |
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162 | if (verboseLevel > 3) { |
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163 | G4cout << " >>> G4EvaporationInuclCollider::bulletTargetSetter" << G4endl; |
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164 | } |
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165 | |
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166 | G4InteractionCase interCase; |
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167 | |
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168 | if (G4InuclNuclei* nuclei_target = dynamic_cast<G4InuclNuclei*>(target)) { |
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169 | if (G4InuclNuclei* nuclei_bullet = dynamic_cast<G4InuclNuclei*>(bullet)) { // A + A |
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170 | interCase.setInterCase(2); |
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171 | if (nuclei_target->getA() >= nuclei_bullet->getA()) { |
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172 | interCase.setBulletTarget(bullet, target); |
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173 | } else { |
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174 | interCase.setBulletTarget(target, bullet); |
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175 | }; |
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176 | } else { |
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177 | interCase.setInterCase(1); |
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178 | interCase.setBulletTarget(bullet, target); |
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179 | }; |
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180 | } else { |
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181 | G4InuclNuclei* nuclei_bullet = dynamic_cast<G4InuclNuclei*>(bullet); |
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182 | if (nuclei_bullet) { |
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183 | G4InuclElementaryParticle* part = |
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184 | dynamic_cast<G4InuclElementaryParticle*>(target); |
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185 | if (part) { |
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186 | interCase.setInterCase(1); |
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187 | interCase.setBulletTarget(target, bullet); |
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188 | }; |
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189 | }; |
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190 | }; |
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191 | |
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192 | return interCase; |
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193 | } |
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194 | |
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195 | G4bool G4EvaporationInuclCollider::explosion(G4InuclNuclei* target) const { |
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196 | |
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197 | if (verboseLevel > 3) { |
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198 | G4cout << " >>> G4EvaporationInuclCollider::explosion" << G4endl; |
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199 | } |
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200 | |
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201 | const G4double a_cut = 20.0; |
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202 | const G4double be_cut = 3.0; |
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203 | |
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204 | G4double a = target->getA(); |
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205 | G4double z = target->getZ(); |
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206 | G4double eexs = target->getExitationEnergy(); |
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207 | G4bool explo = true; |
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208 | |
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209 | if (a > a_cut) { |
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210 | explo = false; |
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211 | } else { |
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212 | if (eexs < be_cut * bindingEnergy(a, z)) explo = false; |
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213 | }; |
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214 | |
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215 | return explo; |
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216 | } |
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217 | |
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