| 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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