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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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9 | // * include a list of copyright holders. * |
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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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18 | // * This code implementation is the result of the scientific and * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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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 | // $Id: G4UnknownDecay.hh,v 1.3 2006/06/29 19:30:56 gunter Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-03 $ |
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29 | // |
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30 | // |
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31 | // ------------------------------------------------------------ |
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32 | // GEANT 4 class header file |
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33 | // |
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34 | // |
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35 | #ifndef G4UnknownDecay_h |
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36 | #define G4UnknownDecay_h 1 |
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37 | |
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38 | #include "G4ios.hh" |
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39 | #include "globals.hh" |
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40 | #include "G4VDiscreteProcess.hh" |
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41 | #include "G4ParticleChangeForDecay.hh" |
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42 | |
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43 | class G4UnknownDecay : public G4VDiscreteProcess |
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44 | { |
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45 | // Class Description |
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46 | // This class is a decay process for "unknown" particle. |
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47 | |
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48 | public: |
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49 | // Constructors |
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50 | G4UnknownDecay(const G4String& processName ="UnknownDecay"); |
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51 | |
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52 | // Destructor |
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53 | virtual ~G4UnknownDecay(); |
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54 | |
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55 | private: |
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56 | // copy constructor |
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57 | G4UnknownDecay(const G4UnknownDecay &right); |
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58 | |
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59 | // Assignment Operation (generated) |
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60 | G4UnknownDecay & operator=(const G4UnknownDecay &right); |
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61 | |
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62 | public: //With Description |
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63 | |
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64 | virtual G4VParticleChange *PostStepDoIt( |
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65 | const G4Track& aTrack, |
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66 | const G4Step& aStep |
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67 | ); |
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68 | |
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69 | virtual void BuildPhysicsTable(const G4ParticleDefinition&); |
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70 | // In G4UnknownDecay, thePhysicsTable stores values of |
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71 | // beta * std::sqrt( 1 - beta*beta) |
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72 | // as a function of normalized kinetic enregy (=Ekin/mass), |
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73 | // becasuse this table is universal for all particle types, |
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74 | |
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75 | |
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76 | virtual G4bool IsApplicable(const G4ParticleDefinition&); |
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77 | // returns "true" if the decay process can be applied to |
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78 | // the particle type. |
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79 | |
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80 | protected: // With Description |
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81 | virtual G4VParticleChange* DecayIt( |
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82 | const G4Track& aTrack, |
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83 | const G4Step& aStep |
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84 | ); |
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85 | // The DecayIt() method returns by pointer a particle-change object, |
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86 | // which has information of daughter particles. |
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87 | |
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88 | public: |
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89 | |
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90 | virtual G4double PostStepGetPhysicalInteractionLength( |
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91 | const G4Track& track, |
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92 | G4double previousStepSize, |
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93 | G4ForceCondition* condition |
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94 | ); |
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95 | |
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96 | |
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97 | protected: // With Description |
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98 | // GetMeanFreePath returns ctau*beta*gamma for decay in flight |
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99 | virtual G4double GetMeanFreePath(const G4Track& aTrack, |
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100 | G4double previousStepSize, |
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101 | G4ForceCondition* condition |
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102 | ); |
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103 | |
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104 | public: |
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105 | void SetVerboseLevel(G4int value); |
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106 | G4int GetVerboseLevel() const; |
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107 | |
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108 | private: |
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109 | G4int verboseLevel; |
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110 | // controle flag for output message |
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111 | // 0: Silent |
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112 | // 1: Warning message |
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113 | // 2: More |
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114 | |
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115 | private: |
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116 | // HighestValue. |
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117 | const G4double HighestValue; |
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118 | |
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119 | // ParticleChange for decay process |
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120 | G4ParticleChangeForDecay fParticleChangeForDecay; |
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121 | |
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122 | }; |
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123 | |
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124 | inline |
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125 | G4double G4UnknownDecay::PostStepGetPhysicalInteractionLength( |
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126 | const G4Track& track, |
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127 | G4double /*previousStepSize*/, |
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128 | G4ForceCondition* condition |
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129 | ) |
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130 | { |
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131 | // pre-assigned UnknownDecay time |
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132 | G4double pTime = track.GetDynamicParticle()->GetPreAssignedDecayProperTime(); |
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133 | |
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134 | if (pTime < 0.) pTime = DBL_MIN; |
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135 | |
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136 | // condition is set to "Not Forced" |
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137 | *condition = NotForced; |
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138 | |
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139 | // reminder proper time |
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140 | G4double remainder = pTime - track.GetProperTime(); |
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141 | if (remainder <= 0.0) remainder = DBL_MIN; |
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142 | |
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143 | // use pre-assigned Decay time to determine PIL |
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144 | //return GetMeanFreePath(track, previousStepSize, condition); |
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145 | return remainder*c_light; |
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146 | |
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147 | } |
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148 | |
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149 | inline |
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150 | void G4UnknownDecay::SetVerboseLevel(G4int value){ verboseLevel = value; } |
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151 | |
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152 | inline |
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153 | G4int G4UnknownDecay::GetVerboseLevel() const { return verboseLevel; } |
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154 | |
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155 | inline |
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156 | G4VParticleChange* G4UnknownDecay::PostStepDoIt( |
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157 | const G4Track& aTrack, |
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158 | const G4Step& aStep |
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159 | ) |
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160 | { |
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161 | return DecayIt(aTrack, aStep); |
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162 | } |
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163 | |
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164 | #endif |
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165 | |
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166 | |
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167 | |
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168 | |
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169 | |
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170 | |
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171 | |
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172 | |
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173 | |
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174 | |
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