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 | // |
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27 | // |
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28 | // Hadronic Process: Alpha Inelastic Process |
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29 | // J.L. Chuma, TRIUMF, 25-Feb-1997 |
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30 | // Last modified: 27-Mar-1997 |
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31 | // J.L. Chuma, 08-May-2001: Update original incident passed back in vec[0] |
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32 | // from NuclearReaction |
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33 | // |
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34 | #include "G4LEAlphaInelastic.hh" |
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35 | #include "Randomize.hh" |
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36 | #include "G4Electron.hh" |
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37 | |
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38 | G4HadFinalState * |
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39 | G4LEAlphaInelastic::ApplyYourself( const G4HadProjectile &aTrack, |
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40 | G4Nucleus &targetNucleus ) |
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41 | { |
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42 | theParticleChange.Clear(); |
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43 | G4double A = targetNucleus.GetN(); |
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44 | G4double Z = targetNucleus.GetZ(); |
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45 | |
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46 | G4double kineticEnergy = aTrack.Get4Momentum().e()-aTrack.GetDefinition()->GetPDGMass(); |
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47 | if( verboseLevel > 1 ) |
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48 | { |
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49 | const G4Material *targetMaterial = aTrack.GetMaterial(); |
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50 | G4cout << "G4LEAlphaInelastic::ApplyYourself called" << G4endl; |
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51 | G4cout << "kinetc energy = " <<kineticEnergy/MeV << "MeV, "; |
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52 | G4cout << "target material = " << targetMaterial->GetName() << G4endl; |
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53 | } |
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54 | |
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55 | // Work-around for lack of model above 100 MeV |
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56 | if (kineticEnergy/MeV > 100. || kineticEnergy <= 0.1*MeV) |
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57 | { |
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58 | theParticleChange.SetStatusChange(isAlive); |
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59 | theParticleChange.SetEnergyChange(aTrack.GetKineticEnergy()); |
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60 | theParticleChange.SetMomentumChange(aTrack.Get4Momentum().vect().unit()); |
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61 | return &theParticleChange; |
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62 | } |
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63 | G4double theAtomicMass = targetNucleus.AtomicMass( A, Z ); |
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64 | G4double massVec[9]; |
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65 | massVec[0] = targetNucleus.AtomicMass( A+4.0, Z+2.0 ); |
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66 | massVec[1] = targetNucleus.AtomicMass( A+3.0, Z+2.0 ); |
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67 | massVec[2] = targetNucleus.AtomicMass( A+3.0, Z+1.0 ); |
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68 | massVec[3] = targetNucleus.AtomicMass( A+2.0, Z+1.0 ); |
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69 | massVec[4] = targetNucleus.AtomicMass( A+1.0, Z+1.0 ); |
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70 | massVec[5] = theAtomicMass; |
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71 | massVec[6] = targetNucleus.AtomicMass( A+2.0, Z+2.0 ); |
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72 | massVec[7] = massVec[3]; |
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73 | massVec[8] = targetNucleus.AtomicMass( A+2.0, Z ); |
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74 | // |
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75 | G4FastVector<G4ReactionProduct,4> vec; // vec will contain the secondary particles |
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76 | G4int vecLen = 0; |
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77 | vec.Initialize( 0 ); |
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78 | // |
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79 | theReactionDynamics.NuclearReaction( vec, vecLen, &aTrack, |
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80 | targetNucleus, theAtomicMass, massVec ); |
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81 | // |
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82 | G4double p = vec[0]->GetMomentum().mag(); |
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83 | theParticleChange.SetMomentumChange( vec[0]->GetMomentum() *(1./p)); |
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84 | theParticleChange.SetEnergyChange( vec[0]->GetKineticEnergy() ); |
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85 | delete vec[0]; |
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86 | // |
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87 | G4DynamicParticle *pd; |
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88 | for( G4int i=1; i<vecLen; ++i ) |
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89 | { |
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90 | pd = new G4DynamicParticle(); |
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91 | pd->SetDefinition( vec[i]->GetDefinition() ); |
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92 | pd->SetMomentum( vec[i]->GetMomentum() ); |
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93 | theParticleChange.AddSecondary( pd ); |
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94 | delete vec[i]; |
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95 | } |
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96 | // |
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97 | return &theParticleChange; |
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98 | } |
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99 | |
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100 | /* end of file */ |
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101 | |
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