1 | ------------------------------------------------------------------- |
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2 | |
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3 | ========================================================== |
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4 | Geant4 - an Object-Oriented Toolkit for Physics Simulation |
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5 | ========================================================== |
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6 | |
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7 | History file for hadronic/models/de_excitation |
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8 | ---------------------------------------------- |
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9 | |
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10 | This file should be used to summarize modifications introduced in the |
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11 | code and to keep track of all tags. |
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12 | |
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13 | --------------------------------------------------------------- |
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14 | * Please list in reverse chronological order (last date on top) |
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15 | --------------------------------------------------------------- |
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16 | |
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17 | 23-November 2010 V.Ivanchenko hadr-pre-V09-03-17 |
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18 | --------------------------------------------------- |
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19 | G4PreCompoundFragment, G4PreCompoundEmission, G4PreCompoundModel - |
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20 | return back ref-09 computations |
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21 | |
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22 | 18-November 2010 V.Ivanchenko hadr-pre-V09-03-16 |
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23 | --------------------------------------------------- |
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24 | G4PreCompoundModel - change number of excitons to be as in 9.3 |
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25 | affects tail of neutron stectrum for low-energy projectile |
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26 | |
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27 | 17-November 2010 V.Ivanchenko hadr-pre-V09-03-15 |
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28 | --------------------------------------------------- |
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29 | G4PreCompoundProton, G4PreCompoundNeutron, G4PreCompoundHe3 - fixed |
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30 | usage of integer Z and A |
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31 | |
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32 | 02-November 2010 V.Ivanchenko hadr-pre-V09-03-14 |
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33 | --------------------------------------------------- |
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34 | - Fixed Coverity warnings - pedantic initialisation in constructors |
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35 | |
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36 | 28-October 2010 V.Ivanchenko hadr-pre-V09-03-13 |
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37 | --------------------------------------------------- |
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38 | G4PreCompoundModel - use more safe constructor of G4DynamicParticle |
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39 | G4LowEIonFragmentation - complete transition to integar Z and A, |
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40 | use of updated methods for G4Fragment |
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41 | |
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42 | 20-October 2010 V.Ivanchenko hadr-pre-V09-03-12 |
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43 | --------------------------------------------------- |
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44 | G4PreCompoundTransitions - fixed compillation warning introduced in previous tag |
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45 | |
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46 | 11-October 2010 V.Ivanchenko hadr-pre-V09-03-11 |
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47 | --------------------------------------------------- |
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48 | G4PreCompoundTransitions - JMQ fixed bug in the PerformTransition method |
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49 | (use number of particles instead of number of excitons) |
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50 | G4PreCompoundModel - disabled upper limit on excitation energy |
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51 | |
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52 | 8-September 2010 G.Folger hadr-pre-V09-03-10 |
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53 | --------------------------------------------------- |
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54 | G4LowEIonFragmentation: use integer A and Z |
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55 | |
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56 | 1-September 2010 V.Ivanchenko hadr-pre-V09-03-09 |
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57 | --------------------------------------------------- |
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58 | G4PreCompoundEmission - removed SetUp inline method and move its functionality |
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59 | |
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60 | 31-August 2010 V.Ivanchenko hadr-pre-V09-03-08 |
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61 | --------------------------------------------------- |
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62 | G4PreCompoundTransition - fixed typo introduced in previous tag |
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63 | |
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64 | 28-August 2010 V.Ivanchenko hadr-pre-V09-03-07 |
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65 | --------------------------------------------------- |
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66 | General cleaup of all classes: constructors and destructors moved to the |
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67 | source, integer Z and A, G4Pow class |
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68 | is used to speedup computations |
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69 | G4PreCompoundModel - Emission and Transition classes become members created |
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70 | at construction and not at run time, |
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71 | initialisation is performed at construction or when options |
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72 | are changed and not in run time, G4Fragment is not const, |
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73 | it is modified during process of emission of particles |
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74 | |
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75 | 11-June 2010 V.Ivanchenko hadr-pre-V09-03-06 |
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76 | --------------------------------------------------- |
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77 | G4LowEIonFragmentation - cleanup comments |
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78 | G4PreCompoundModel - constructor and destructor are moved to the source |
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79 | |
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80 | 01-June 2010 V.Ivanchenko hadr-pre-V09-03-05 |
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81 | --------------------------------------------------- |
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82 | G4LowEIonFragmentation - (J.M.Quesada) fixed exciton state |
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83 | constructor and destructor moved to source |
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84 | |
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85 | 09-April 2010 V.Ivanchenko hadr-pre-V09-03-04 |
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86 | --------------------------------------------------- |
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87 | G4PreCompoundProton, G4PreCompoundDeuteron, G4PreCompoundTriton, |
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88 | G4PreCompoundHe3, G4PreCompoundAlpha - (JMQ) return back to published |
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89 | varian of OPT3 (Kalbach) parameterization of inverse |
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90 | cross section |
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91 | |
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92 | 01-March 2010 V.Ivanchenko hadr-pre-V09-03-03 |
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93 | --------------------------------------------------- |
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94 | G4VPreCompoundIon, G4VPreCompoundNucleon - removed dummy classes |
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95 | |
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96 | 25-February 2010 V.Ivanchenko hadr-pre-V09-03-02 |
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97 | --------------------------------------------------- |
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98 | G4PreCompoundEmission - more protections for numerical computations are added |
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99 | |
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100 | 17-February 2010 V.Ivanchenko hadr-pre-V09-03-01 |
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101 | --------------------------------------------------- |
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102 | G4PreCompoundEmission - (JMQ) return back value of Ef as it was in 9.3 |
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103 | |
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104 | 19-January 2010 V.Ivanchenko hadr-pre-V09-03-00 |
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105 | --------------------------------------------------- |
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106 | G4PreCompoundEmission - (JMQ) added protection against unphysical value of |
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107 | parameter "an" when exitation energy is huge |
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108 | to avoid numerical problem |
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109 | - simplified algorithm of sampling |
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110 | |
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111 | 21-November 2009 V.Ivanchenko hadr-pre-V09-02-07 |
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112 | --------------------------------------------------- |
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113 | G4PreCompoundTransitions - return back transition probability |
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114 | |
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115 | 19-November 2009 V.Ivanchenko hadr-pre-V09-02-06 |
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116 | --------------------------------------------------- |
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117 | G4PreCompoundModel - (JMQ) CEM transition probabilities are set |
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118 | as a default |
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119 | G4PreCompoundTransitions - (JMQ) CEM transition probabilities have been |
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120 | renormalized (transitions with Delta N=+2 |
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121 | are increased by factor 5) |
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122 | |
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123 | 12-November 2009 G.Cosmo hadr-pre-V09-02-05 |
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124 | --------------------------------------------------- |
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125 | G4PreCompoundEmission - fixed compilation error on Windows. |
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126 | |
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127 | 12-November 2009 G.Folger hadr-pre-V09-02-04 |
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128 | --------------------------------------------------- |
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129 | G4PrecompoundEmission - modifiy AngularDistribution() to avoid floating point |
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130 | exceptions. |
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131 | - remove calls to log in rho() replaced by use of new |
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132 | logfactorial() |
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133 | |
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134 | 13-February 2009 V.Ivanchenko hadr-pre-V09-02-03 |
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135 | --------------------------------------------------- |
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136 | G4PreCompoundXXX - changed the shape of probabilities (return back to 9.2) |
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137 | for d, t, He3, alpha (JMQ) |
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138 | |
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139 | 12-February 2009 V.Ivanchenko hadr-pre-V09-02-02 |
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140 | --------------------------------------------------- |
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141 | G4PreCompoundXXX - changed the shape of probabilities |
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142 | for d, t, He3, alpha near the Coulomb barrier (JMQ) |
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143 | |
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144 | 11-February 2009 V.Ivanchenko hadr-pre-V09-02-01 |
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145 | --------------------------------------------------- |
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146 | G4PreCompoundXXX - set default Opt3 back, add decrease Coulomb barrier |
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147 | for d, t, a, he3 (JMQ) |
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148 | |
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149 | 10-February 2009 V.Ivanchenko hadr-pre-V09-02-00 |
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150 | --------------------------------------------------- |
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151 | Some clean up of comments |
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152 | G4PreCompoundIon - fixed probability of light ion emmision (JMQ) |
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153 | G4PreCompoundXXX - by default Opt1 is used for d, t, a, he3, |
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154 | Opt3 for n, p (JMQ) |
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155 | |
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156 | 09-December 2008 A.Howard hadr-pre-V09-01-15 |
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157 | --------------------------------------------------- |
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158 | Added protection for close to zero excitation energy in |
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159 | G4PreCompoundModel.cc (according to JMQ, MAC) to not try to de-excite. |
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160 | |
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161 | 09-December 2008 A.Howard hadr-pre-V09-01-14 |
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162 | --------------------------------------------------- |
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163 | Added protection for close to zero excitation energy in |
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164 | G4PreCompoundTransitions.cc (returns 0.0), prevents FPE later on. |
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165 | |
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166 | 27-November 2008 A.Howard hadr-pre-V09-01-13 |
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167 | --------------------------------------------------- |
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168 | Added data member initialisation to G4VPreCompoundTransitions.hh |
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169 | |
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170 | 19-November 2008 A.Howard hadr-pre-V09-01-12 |
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171 | --------------------------------------------------- |
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172 | JMQ fix to G4PreCompoundNeutron.cc for Zirconium (if (nu < 0.)nu=-nu). |
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173 | |
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174 | 30-September 2008 A.Howard hadr-pre-V09-01-11 |
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175 | --------------------------------------------------- |
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176 | Trivial protection against negative probabilities for incident protons on |
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177 | targets with A < Carbon. |
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178 | |
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179 | 22-September 2008 A.Howard hadr-pre-V09-01-10 |
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180 | --------------------------------------------------- |
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181 | JMQ's latest developments - which are an extension of hadr-pre-V09-01-08 with |
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182 | cross-section options (equivalent to the de-excitation modifications) and other |
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183 | options (SICB, Never Go Back,...). In addition Gunter's fix to the factorials |
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184 | is included from hadr-pre-V09-01-09. |
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185 | Added new files: G4PreCompoundAlpha.cc G4PreCompoundDeuteron.cc |
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186 | G4PreCompoundHe3.cc G4PreCompoundNeutron.cc G4PreCompoundProton.cc |
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187 | G4PreCompoundTriton.cc (Classes previously existed. Now they have more |
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188 | involved cross-section calculations). |
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189 | |
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190 | 19-September 2008 A.Howard hadr-pre-V09-01-09 |
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191 | --------------------------------------------------- |
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192 | Including Gunter's fix (see 11-August below) on top of ref-07 |
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193 | (hadr-pre-V09-00-04), i.e. without JMQ's developments. |
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194 | |
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195 | 11-August 2008 G.Folger |
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196 | ----------------------------------------------- |
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197 | Rewrite algorithm in G4PreCompoundEmission::rho() to avoid frequent |
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198 | floating point overflow when using Precompund in combination |
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199 | with Binary Cascade. |
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200 | |
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201 | |
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202 | 24 July 2008 J. M. Quesada hadr-pre-V09-01-08 |
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203 | --------------------------------------------------- |
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204 | Minor fixes and Coulomb barrier just for Wellisch's proton cross section |
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205 | (OPT=2) |
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206 | |
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207 | |
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208 | 23 July 2008 V.Ivanchenko hadr-pre-V09-01-07 |
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209 | --------------------------------------------------- |
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210 | Fixed mistake in tagging |
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211 | |
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212 | 23 July 2008 V.Ivanchenko hadr-pre-V09-01-06 |
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213 | --------------------------------------------------- |
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214 | Return back Coulomb barrier initialisation (J.M.Quesada) |
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215 | |
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216 | 27 June 2008 V.Ivanchenko hadr-pre-V09-01-05 |
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217 | --------------------------------------------------- |
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218 | Fixed G4PreCompoundNucleon and G4PreCompoundIon for |
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219 | Coulomb barrier, added protections for zero cross sections, |
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220 | OPT=2 is used (J.M.Quesada) |
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221 | |
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222 | 05 June 2008 J. M. Quesada hadr-pre-V09-01-04 |
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223 | --------------------------------------------------- |
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224 | Bug fixed in OPT=1 (Chatterjee) charged particle cross sections. |
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225 | Unphysical values at very low emission energies have been corrected (set |
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226 | to 0); OPT=1 ( OPT=2 in previous tag) |
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227 | |
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228 | |
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229 | 15-May 2008 J. M.Quesada hadr-pre-V09-01-03 |
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230 | ----------------------------------------------- |
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231 | The retrieval of transition probabilities in G4PreCompoundModel.cc |
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232 | (for protection against unphysically crossing the landa_+=landa_- condition) |
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233 | was misplaced. Now it has been placed inside the preequilibrium transitions |
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234 | loop. |
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235 | |
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236 | 8-May 2008 J. M.Quesada hadr-pre-V09-01-02 |
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237 | ----------------------------------------------- |
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238 | Protection against non physical situation has been set: Equilibrium exciton number |
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239 | Neq (when reached, equilibrium regime starts) should correspond to equal transition |
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240 | probabilities "back" and "forth". Nevertheless, for heavy target (Neq is big even |
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241 | for low incident energies) after first emission this condition (equal trans. prob.) |
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242 | is reached far before reaching corresponding Neq of the residual. Unless this "jump" |
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243 | to equilibrium is forced in this case, preequilibrium will be |
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244 | spuriously prolonged (as a side effect, with huge CPU consumption). |
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245 | G4PreCompoundModel and G4PreCompoundTransitions classes have been modified. |
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246 | |
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247 | |
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248 | 1-May 2008 J. M.Quesada hadr-pre-V09-01-01 |
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249 | ----------------------------------------------- |
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250 | - First trial with cvs. 00 skipped by mistake. |
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251 | New inverse cross sections: |
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252 | OPT=1 Chetterjee's parameterization to reaction cross sections from optical potential global fittings. |
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253 | OPT=2 as OPT=1 but for protons the Wellisch's parameterization for protons is used (DEFAULT) |
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254 | OPT=3 Kalbach's modifications of Chatterjee's parameterization of cross sections |
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255 | OPT=4 as OPT=3 but for protons the Wellisch's parameterization for protons is used |
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256 | |
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257 | Coulomb barrier has been suppressed as it enters through inverse cross sections. Also methods related to former Dostrovski's cross sections (alpha , beta and C parameters) have been suppressed. In all particle header files: |
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258 | G4PreCompoundNucleon.hh ,G4PreCompoundNeutron.hh,G4PreCompoundProton.hh, G4PreCompoundIon.hh, G4PreCompoundDeuteron.hh, G4PreCompoundTriton.hh ,G4PreCompoundHe3.hh , G4PreCompoundAlpha.hh |
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259 | |
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260 | |
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261 | Soft cutoff transition from equilibrium to equilibrium has been suppressed (unphysical and not necessary anymore).In G4PreCompoundModel. |
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262 | |
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263 | New transition probabilities : |
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264 | OPT=1 Gudima's formulae |
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265 | OPT=2 Machner parameterization of matrix elements for transitions (DEFAULT) |
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266 | |
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267 | Level density is set to A/10 (Gudima's prescription). |
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268 | |
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269 | Several bugs fixed (average xs in nucleon-nucleon xs in G4PreCompundTransitions.cc and emission probability formula in G4PreCompoundIon.cc ) . |
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270 | |
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271 | 25-October 2007 A.Howard hadr-pre-V09-00-04 |
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272 | ----------------------------------------------- |
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273 | - Removed compilation warning on unused parameter in G4PreCompoundIon.cc |
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274 | |
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275 | |
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276 | 11-October 2007 A.Howard hadr-pre-V09-00-03 |
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277 | ----------------------------------------------- |
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278 | - Corrected for integer arithmetic bug in G4PreCompoundModel.cc |
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279 | (ratio of charged to neutral excitons) |
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280 | |
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281 | |
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282 | 01-October 2007 A.Howard hadr-pre-V09-00-02 |
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283 | ----------------------------------------------- |
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284 | - Protected Rj (Q_beta) factor against divide by zeroes (should never happen?) |
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285 | The following files have been modified: |
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286 | G4PreCompoundAlpha.hh, G4PreCompoundDeuteron.hh, G4PreCompoundHe3.hh, |
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287 | G4PreCompoundTriton.hh, G4PreCompoundNeutron.hh, G4PreCompoundProton.hh |
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288 | |
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289 | |
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290 | 23-August 2007 A.Howard hadr-pre-V09-00-01 |
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291 | ---------------------------------------------- |
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292 | - Development tag incorporating further suggestions/corrections from |
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293 | Jose-Manuel Quesada particularly with respect to light ion production. |
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294 | The following files have been modified: |
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295 | G4PreCompoundIon.cc, G4PreCompoundDeuteron.hh, G4PreCompoundHe3.hh, |
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296 | G4PreCompoundTriton.hh, G4PreCompoundAlpha.hh, G4PreCompoundIon.hh, |
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297 | G4VPreCompoundIon.hh (unused?) |
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298 | |
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299 | |
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300 | 23-July 2007 A.Howard hadr-pre-V09-00-00 |
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301 | ---------------------------------------------- |
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302 | - Development tag incorporating the suggestions/corrections of Jose-Manuel |
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303 | Quesada. These should reflect the literature and units expected for the |
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304 | exciton model. The following files have been modified: |
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305 | G4PreCompoundNucleon.hh, G4VPreCompoundNucleon.hh, G4PreCompoundAlpha.hh, |
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306 | G4PreCompoundHe3.hh, G4PreCompoundDeuteron.hh, G4PreCompoundNeutron.hh, |
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307 | G4PreCompoundProton.hh, G4PreCompoundTriton.hh |
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308 | G4VPreCompoundIon.cc, G4PreCompoundIon.cc, G4PreCompoundModel.cc, |
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309 | G4VPreCompoundFragment.cc, G4PreCompoundTransitions.cc, |
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310 | G4PreCompoundNucleon.cc, G4VPreCompoundNucleon.cc |
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311 | The main changes are: |
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312 | - introducing an Rj factor into the probability calculation, |
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313 | - correcting the units for the Pauli Blocking Factor - missing a g factor, |
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314 | - decreasing the number of charged particles if the number excitons is |
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315 | decreased (previously this number was only increased with increasing |
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316 | excitons). |
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317 | |
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318 | |
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319 | 04-May 2007 G.Folger hadr-pre-V08-02-00 |
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320 | ---------------------------------------------- |
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321 | - G4PreCompoundTransitions.cc: Protect against divide by 0 |
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322 | |
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323 | 19 Aug 2006 Dennis Wright (hadr-pre-V08-01-00) |
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324 | ---------------------------------------------- |
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325 | - exciton_model |
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326 | G4VPreCompoundFragment.hh, .icc : remove meaningless const from |
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327 | methods GetA, GetZ, GetRestA, GetRestZ, GetCoulombBarrier, GetBindingEnergy, |
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328 | GetMaximalKineticEnergy, GetEnergyThreshold, GetEmissionProbability, |
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329 | GetNuclearMass, GetRestNuclearMass and GetReducedMass |
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330 | |
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