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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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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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24 | // ******************************************************************** |
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25 | // |
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26 | // $Id: G4ContinuumGammaDeexcitation.cc,v 1.8 2010/11/17 19:17:17 vnivanch Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-04-ref-00 $ |
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28 | // |
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29 | // ------------------------------------------------------------------- |
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30 | // GEANT 4 class file |
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31 | // |
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32 | // CERN, Geneva, Switzerland |
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33 | // |
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34 | // File name: G4ContinuumGammaDeexcitation |
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35 | // |
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36 | // Authors: Carlo Dallapiccola (dallapiccola@umdhep.umd.edu) |
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37 | // Maria Grazia Pia (pia@genova.infn.it) |
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38 | // |
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39 | // Creation date: 23 October 1998 |
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40 | // |
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41 | // Modifications: |
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42 | // |
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43 | // 02 May 2003, Vladimir Ivanchenko change interface to G4NuclearlevelManager |
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44 | // |
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45 | // 19 April 2010 J. M. Quesada: smaller value of tolerance parameter |
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46 | // |
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47 | // ------------------------------------------------------------------- |
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48 | // |
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49 | // Class G4ContinuumGammaDeexcitation.cc |
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50 | // |
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51 | // Concrete class derived from G4VGammaDeexcitation |
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52 | // |
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53 | // |
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54 | #include "G4ContinuumGammaDeexcitation.hh" |
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55 | |
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56 | #include "G4Gamma.hh" |
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57 | #include "G4ContinuumGammaTransition.hh" |
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58 | #include "G4NuclearLevelManager.hh" |
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59 | #include "G4NuclearLevelStore.hh" |
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60 | #include "G4Fragment.hh" |
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61 | #include "G4ConstantLevelDensityParameter.hh" |
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62 | |
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63 | // |
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64 | // Constructor |
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65 | // |
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66 | |
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67 | G4ContinuumGammaDeexcitation::G4ContinuumGammaDeexcitation() |
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68 | : _nucleusZ(0), _nucleusA(0), _levelManager(0) |
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69 | {} |
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70 | |
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71 | G4ContinuumGammaDeexcitation::~G4ContinuumGammaDeexcitation() |
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72 | {} |
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73 | |
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74 | G4VGammaTransition* G4ContinuumGammaDeexcitation::CreateTransition() |
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75 | { |
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76 | G4Fragment* nucleus = GetNucleus(); |
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77 | G4int Z = nucleus->GetZ_asInt(); |
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78 | G4int A = nucleus->GetA_asInt(); |
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79 | G4double excitation = nucleus->GetExcitationEnergy(); |
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80 | |
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81 | if (_nucleusA != A || _nucleusZ != Z) |
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82 | { |
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83 | _levelManager = G4NuclearLevelStore::GetInstance()->GetManager(Z,A); |
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84 | _nucleusA = A; |
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85 | _nucleusZ = Z; |
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86 | } |
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87 | |
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88 | if (_verbose > 1) { |
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89 | G4cout << "G4ContinuumGammaDeexcitation::CreateTransition - Created" << G4endl; |
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90 | } |
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91 | G4VGammaTransition* gt = |
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92 | new G4ContinuumGammaTransition(_levelManager,Z,A,excitation,_verbose ); |
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93 | |
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94 | return gt; |
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95 | } |
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96 | |
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97 | |
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98 | G4bool G4ContinuumGammaDeexcitation::CanDoTransition() |
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99 | { |
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100 | //JMQ: far too small, creating sometimes continuum gammas instead |
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101 | // of the right discrete ones (when excitation energy is slightly |
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102 | // over maximum discrete energy): changed |
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103 | // G4double tolerance = 10*eV; |
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104 | const G4double tolerance = CLHEP::keV; |
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105 | |
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106 | if (_transition == 0) |
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107 | { |
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108 | if (_verbose > 0) { |
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109 | G4cout << "G4ContinuumGammaDeexcitation::CanDoTransition - Null transition " |
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110 | << G4endl; |
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111 | } |
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112 | return false; |
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113 | } |
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114 | |
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115 | G4Fragment* nucleus = GetNucleus(); |
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116 | G4double excitation = nucleus->GetExcitationEnergy(); |
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117 | |
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118 | if (_nucleusZ < 2 || _nucleusA < 3) |
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119 | { |
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120 | if (_verbose > 1) { |
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121 | G4cout << "G4ContinuumGammaDeexcitation::CanDoTransition - n/p/H" |
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122 | << G4endl; |
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123 | } |
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124 | return false; |
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125 | } |
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126 | |
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127 | if (excitation <= tolerance) |
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128 | { |
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129 | if (_verbose > 1) { |
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130 | G4cout << "G4ContinuumGammaDeexcitation::CanDoTransition - Excitation " |
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131 | << excitation/CLHEP::keV << " keV is too small" |
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132 | << G4endl; |
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133 | } |
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134 | return false; |
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135 | } |
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136 | if (excitation <= (_levelManager->MaxLevelEnergy() + tolerance)) |
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137 | { |
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138 | if (_verbose > 0) { |
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139 | G4cout << "G4ContinuumGammaDeexcitation::CanDoTransition - Excitation " |
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140 | << excitation << " below max discrete level " |
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141 | << _levelManager->MaxLevelEnergy() << G4endl; |
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142 | } |
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143 | return false; |
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144 | } |
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145 | |
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146 | if (_verbose > 1) { |
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147 | G4cout <<"G4ContinuumGammaDeexcitation::CanDoTransition - CanDo" |
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148 | << " Eex(keV)= " << excitation/CLHEP::keV |
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149 | << " Emax(keV)= " << _levelManager->MaxLevelEnergy()/CLHEP::keV |
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150 | << " Z= " << _nucleusZ << " A= " << _nucleusA |
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151 | << G4endl; |
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152 | } |
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153 | return true; |
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154 | } |
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155 | |
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156 | |
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157 | |
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