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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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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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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: G4MuNuclearInteraction.icc,v 1.3 2006/06/29 20:57:22 gunter Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-03-cand-01 $ |
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29 | // |
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30 | // $Id: |
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31 | // --------------------------------------------------------------- |
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32 | // GEANT 4 class inlined methods file |
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33 | // |
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34 | // History: first implementation, based on object model of |
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35 | // 2nd December 1995, G.Cosmo |
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36 | // -------- G4MuNuclearInteraction physics process --------- |
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37 | // by Laszlo Urban, May 1998 |
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38 | // *************************************************************** |
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39 | |
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40 | inline G4double G4MuNuclearInteraction::GetMeanFreePath( |
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41 | const G4Track& trackData, |
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42 | G4double, |
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43 | G4ForceCondition* condition) |
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44 | { |
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45 | const G4DynamicParticle* aDynamicParticle; |
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46 | G4Material* aMaterial; |
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47 | G4double MeanFreePath; |
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48 | G4bool isOutRange ; |
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49 | |
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50 | *condition = NotForced ; |
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51 | |
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52 | aDynamicParticle = trackData.GetDynamicParticle(); |
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53 | aMaterial = trackData.GetMaterial(); |
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54 | |
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55 | G4double KineticEnergy = aDynamicParticle->GetKineticEnergy(); |
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56 | |
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57 | if (KineticEnergy < LowestKineticEnergy) |
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58 | MeanFreePath = DBL_MAX ; |
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59 | else { |
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60 | if (KineticEnergy > HighestKineticEnergy) |
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61 | KineticEnergy = 0.99*HighestKineticEnergy ; |
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62 | MeanFreePath = (*theMeanFreePathTable)(aMaterial->GetIndex())-> |
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63 | GetValue( KineticEnergy, isOutRange ); |
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64 | } |
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65 | return MeanFreePath; |
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66 | } |
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67 | |
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68 | inline G4double G4MuNuclearInteraction::ComputeMeanFreePath( |
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69 | const G4ParticleDefinition* ParticleType, |
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70 | G4double KineticEnergy, |
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71 | const G4Material* aMaterial) |
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72 | { |
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73 | const G4ElementVector* theElementVector = aMaterial->GetElementVector() ; |
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74 | const G4double* theAtomNumDensityVector = |
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75 | aMaterial->GetAtomicNumDensityVector(); |
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76 | |
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77 | G4double SIGMA = 0 ; |
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78 | |
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79 | for ( size_t i=0 ; i < aMaterial->GetNumberOfElements() ; i++ ) |
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80 | { |
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81 | SIGMA += theAtomNumDensityVector[i] * |
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82 | ComputeMicroscopicCrossSection( ParticleType, KineticEnergy, |
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83 | (*theElementVector)[i]->GetZ(), |
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84 | (*theElementVector)[i]->GetA()) ; |
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85 | } |
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86 | |
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87 | return SIGMA<=0.0 ? DBL_MAX : 1./SIGMA ; |
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88 | } |
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89 | |
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90 | |
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91 | inline G4bool G4MuNuclearInteraction::IsApplicable( |
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92 | const G4ParticleDefinition& particle) |
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93 | { |
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94 | return( (&particle == (const G4ParticleDefinition *)theMuonMinus) |
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95 | ||(&particle == (const G4ParticleDefinition *)theMuonPlus) |
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96 | ) ; |
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97 | } |
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