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26 26
27 #include "G4LENDElastic.hh" 27 #include "G4LENDElastic.hh"
28 #include "G4Pow.hh" <<
29 #include "G4PhysicalConstants.hh" 28 #include "G4PhysicalConstants.hh"
30 #include "G4SystemOfUnits.hh" 29 #include "G4SystemOfUnits.hh"
31 #include "G4Nucleus.hh" 30 #include "G4Nucleus.hh"
32 #include "G4IonTable.hh" << 31 #include "G4ParticleTable.hh"
33 <<
34 //extern "C" double MyRNG(void*) { return dran <<
35 //extern "C" double MyRNG(void*) { return CLH <<
36 32
37 G4HadFinalState * G4LENDElastic::ApplyYourself 33 G4HadFinalState * G4LENDElastic::ApplyYourself(const G4HadProjectile& aTrack, G4Nucleus& aTarg )
38 { 34 {
39 35
40 G4double temp = aTrack.GetMaterial()->GetTe 36 G4double temp = aTrack.GetMaterial()->GetTemperature();
41 37
42 //G4int iZ = int ( aTarg.GetZ() ); 38 //G4int iZ = int ( aTarg.GetZ() );
43 //G4int iA = int ( aTarg.GetN() ); 39 //G4int iA = int ( aTarg.GetN() );
44 //migrate to integer A and Z (GetN_asInt re 40 //migrate to integer A and Z (GetN_asInt returns number of neutrons in the nucleus since this)
45 G4int iZ = aTarg.GetZ_asInt(); 41 G4int iZ = aTarg.GetZ_asInt();
46 G4int iA = aTarg.GetA_asInt(); 42 G4int iA = aTarg.GetA_asInt();
47 G4int iM = 0; <<
48 if ( aTarg.GetIsotope() != NULL ) { <<
49 iM = aTarg.GetIsotope()->Getm(); <<
50 } <<
51 43
52 G4double ke = aTrack.GetKineticEnergy(); 44 G4double ke = aTrack.GetKineticEnergy();
53 45
>> 46 //G4HadFinalState* theResult = new G4HadFinalState();
54 G4HadFinalState* theResult = &theParticleCh 47 G4HadFinalState* theResult = &theParticleChange;
55 theResult->Clear(); 48 theResult->Clear();
56 49
57 G4GIDI_target* aTarget = get_target_from_ma << 50 G4GIDI_target* aTarget = usedTarget_map.find( lend_manager->GetNucleusEncoding( iZ , iA ) )->second->GetTarget();
58 if ( aTarget == NULL ) return returnUnchang << 51 G4double aMu = aTarget->getElasticFinalState( ke*MeV, temp, NULL, NULL );
59 <<
60 G4double aMu = aTarget->getElasticFinalStat <<
61 52
62 G4double phi = twopi*G4UniformRand(); 53 G4double phi = twopi*G4UniformRand();
63 G4double theta = std::acos( aMu ); 54 G4double theta = std::acos( aMu );
64 //G4double sinth = std::sin( theta ); 55 //G4double sinth = std::sin( theta );
65 56
66 G4ReactionProduct theNeutron( aTrack.GetDef << 57 G4ReactionProduct theNeutron( const_cast<G4ParticleDefinition *>( aTrack.GetDefinition() ) );
67 theNeutron.SetMomentum( aTrack.Get4Momentum 58 theNeutron.SetMomentum( aTrack.Get4Momentum().vect() );
68 theNeutron.SetKineticEnergy( ke ); 59 theNeutron.SetKineticEnergy( ke );
69 60
70 //G4ParticleDefinition* pd = G4IonTable::Ge << 61 //G4cout << "iZ " << iZ << " iA " << iA << G4endl;
71 //TK 170509 Fix for the case of excited iso <<
72 G4double EE = 0.0; <<
73 if ( iM != 0 ) { <<
74 G4LENDManager::GetInstance()->GetExcitat <<
75 } <<
76 G4ParticleDefinition* target_pd = G4IonTabl <<
77 G4ReactionProduct theTarget( target_pd ); <<
78 62
79 G4double mass = target_pd->GetPDGMass(); << 63 G4ReactionProduct theTarget( G4ParticleTable::GetParticleTable()->FindIon( iZ , iA , 0 , iZ ) );
>> 64
>> 65 G4double mass = G4ParticleTable::GetParticleTable()->FindIon( iZ , iA , 0 , iZ )->GetPDGMass();
80 66
81 // add Thermal motion 67 // add Thermal motion
82 G4double kT = k_Boltzmann*temp; 68 G4double kT = k_Boltzmann*temp;
83 G4ThreeVector v ( G4RandGauss::shoot() * st 69 G4ThreeVector v ( G4RandGauss::shoot() * std::sqrt( kT*mass )
84 , G4RandGauss::shoot() * st 70 , G4RandGauss::shoot() * std::sqrt( kT*mass )
85 , G4RandGauss::shoot() * st 71 , G4RandGauss::shoot() * std::sqrt( kT*mass ) );
86 theTarget.SetMomentum( v ); 72 theTarget.SetMomentum( v );
87 73
88 G4ThreeVector the3Neutron = theNeutron.Ge 74 G4ThreeVector the3Neutron = theNeutron.GetMomentum();
89 G4double nEnergy = theNeutron.GetTotalEne 75 G4double nEnergy = theNeutron.GetTotalEnergy();
90 G4ThreeVector the3Target = theTarget.GetM 76 G4ThreeVector the3Target = theTarget.GetMomentum();
91 G4double tEnergy = theTarget.GetTotalEner 77 G4double tEnergy = theTarget.GetTotalEnergy();
92 G4ReactionProduct theCMS; 78 G4ReactionProduct theCMS;
93 G4double totE = nEnergy+tEnergy; 79 G4double totE = nEnergy+tEnergy;
94 G4ThreeVector the3CMS = the3Target+the3Ne 80 G4ThreeVector the3CMS = the3Target+the3Neutron;
95 theCMS.SetMomentum(the3CMS); 81 theCMS.SetMomentum(the3CMS);
96 G4double cmsMom = std::sqrt(the3CMS*the3C 82 G4double cmsMom = std::sqrt(the3CMS*the3CMS);
97 G4double sqrts = std::sqrt((totE-cmsMom)* 83 G4double sqrts = std::sqrt((totE-cmsMom)*(totE+cmsMom));
98 theCMS.SetMass(sqrts); 84 theCMS.SetMass(sqrts);
99 theCMS.SetTotalEnergy(totE); 85 theCMS.SetTotalEnergy(totE);
100 86
101 theNeutron.Lorentz(theNeutron, theCMS); 87 theNeutron.Lorentz(theNeutron, theCMS);
102 theTarget.Lorentz(theTarget, theCMS); 88 theTarget.Lorentz(theTarget, theCMS);
103 G4double en = theNeutron.GetTotalMoment 89 G4double en = theNeutron.GetTotalMomentum(); // already in CMS.
104 G4ThreeVector cms3Mom=theNeutron.GetMom 90 G4ThreeVector cms3Mom=theNeutron.GetMomentum(); // for neutron direction in CMS
105 G4double cms_theta=cms3Mom.theta(); 91 G4double cms_theta=cms3Mom.theta();
106 G4double cms_phi=cms3Mom.phi(); 92 G4double cms_phi=cms3Mom.phi();
107 G4ThreeVector tempVector; 93 G4ThreeVector tempVector;
108 tempVector.setX( std::cos(theta)*std::s 94 tempVector.setX( std::cos(theta)*std::sin(cms_theta)*std::cos(cms_phi)
109 +std::sin(theta)*std::c 95 +std::sin(theta)*std::cos(phi)*std::cos(cms_theta)*std::cos(cms_phi)
110 -std::sin(theta)*std::s 96 -std::sin(theta)*std::sin(phi)*std::sin(cms_phi) );
111 tempVector.setY( std::cos(theta)*std::s 97 tempVector.setY( std::cos(theta)*std::sin(cms_theta)*std::sin(cms_phi)
112 +std::sin(theta)*std::c 98 +std::sin(theta)*std::cos(phi)*std::cos(cms_theta)*std::sin(cms_phi)
113 +std::sin(theta)*std::s 99 +std::sin(theta)*std::sin(phi)*std::cos(cms_phi) );
114 tempVector.setZ( std::cos(theta)*std::c 100 tempVector.setZ( std::cos(theta)*std::cos(cms_theta)
115 -std::sin(theta)*std::c 101 -std::sin(theta)*std::cos(phi)*std::sin(cms_theta) );
116 tempVector *= en; 102 tempVector *= en;
117 theNeutron.SetMomentum(tempVector); 103 theNeutron.SetMomentum(tempVector);
118 theTarget.SetMomentum(-tempVector); 104 theTarget.SetMomentum(-tempVector);
119 G4double tP = theTarget.GetTotalMomentu 105 G4double tP = theTarget.GetTotalMomentum();
120 G4double tM = theTarget.GetMass(); 106 G4double tM = theTarget.GetMass();
121 theTarget.SetTotalEnergy(std::sqrt((tP+ 107 theTarget.SetTotalEnergy(std::sqrt((tP+tM)*(tP+tM)-2.*tP*tM));
122 108
123 109
124 theNeutron.Lorentz(theNeutron, -1.*theCM << 110 theNeutron.Lorentz(theNeutron, -1.*theCMS);
125 theTarget.Lorentz(theTarget, -1.*theCMS) <<
126 111
127 //110913 Add Protection for very low energy (1 112 //110913 Add Protection for very low energy (1e-6eV) scattering
128 if ( theNeutron.GetKineticEnergy() <= 0 113 if ( theNeutron.GetKineticEnergy() <= 0 )
129 { 114 {
130 theNeutron.SetTotalEnergy ( theNeutro << 115 theNeutron.SetTotalEnergy ( theNeutron.GetMass() * ( 1 + std::pow( 10 , -15.65 ) ) );
131 } 116 }
132 117
>> 118 theTarget.Lorentz(theTarget, -1.*theCMS);
133 if ( theTarget.GetKineticEnergy() < 0 ) 119 if ( theTarget.GetKineticEnergy() < 0 )
134 { 120 {
135 theTarget.SetTotalEnergy ( theTarget. << 121 theTarget.SetTotalEnergy ( theTarget.GetMass() * ( 1 + std::pow( 10 , -15.65 ) ) );
136 } 122 }
137 //110913 END 123 //110913 END
138 124
>> 125 theTarget.Lorentz(theTarget, -1.*theCMS);
>> 126
139 theResult->SetEnergyChange(theNeutron.Get 127 theResult->SetEnergyChange(theNeutron.GetKineticEnergy());
140 theResult->SetMomentumChange(theNeutron.G 128 theResult->SetMomentumChange(theNeutron.GetMomentum().unit());
141 G4DynamicParticle* theRecoil = new G4Dyna 129 G4DynamicParticle* theRecoil = new G4DynamicParticle;
142 130
143 theRecoil->SetDefinition( target_pd ); << 131 // theRecoil->SetDefinition( ionTable->GetIon( iZ , iA ) );
>> 132 theRecoil->SetDefinition( G4ParticleTable::GetParticleTable()->FindIon( iZ, iA , 0, iZ ));
144 theRecoil->SetMomentum( theTarget.GetMome 133 theRecoil->SetMomentum( theTarget.GetMomentum() );
145 theResult->AddSecondary( theRecoil, secID << 134
>> 135 theResult->AddSecondary( theRecoil );
146 136
147 return theResult; 137 return theResult;
148 138
149 } 139 }
150 140
151 141