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26 26
27 #include "G4ErrorEnergyLoss.hh" 27 #include "G4ErrorEnergyLoss.hh"
28 #include "G4EnergyLossForExtrapolator.hh" 28 #include "G4EnergyLossForExtrapolator.hh"
29 #include "G4ErrorPropagatorData.hh" 29 #include "G4ErrorPropagatorData.hh"
30 30
31 //-------------------------------------------- 31 //-------------------------------------------------------------------
32 G4ErrorEnergyLoss::G4ErrorEnergyLoss(const G4S 32 G4ErrorEnergyLoss::G4ErrorEnergyLoss(const G4String& processName,
33 G4ProcessType type) 33 G4ProcessType type)
34 : G4VContinuousProcess(processName, type) 34 : G4VContinuousProcess(processName, type)
35 { 35 {
36 if (verboseLevel>2) { 36 if (verboseLevel>2) {
37 G4cout << GetProcessName() << " is created 37 G4cout << GetProcessName() << " is created " << G4endl;
38 } 38 }
39 39
40 theELossForExtrapolator = new G4EnergyLossFo 40 theELossForExtrapolator = new G4EnergyLossForExtrapolator;
41 theStepLimit = 1.*CLHEP::mm; 41 theStepLimit = 1.*CLHEP::mm;
42 } 42 }
43 43
44 //-------------------------------------------- 44 //-------------------------------------------------------------------
45 void G4ErrorEnergyLoss::InstantiateEforExtrapo 45 void G4ErrorEnergyLoss::InstantiateEforExtrapolator()
46 {} 46 {}
47 47
48 //-------------------------------------------- 48 //-------------------------------------------------------------------
49 G4ErrorEnergyLoss::~G4ErrorEnergyLoss() 49 G4ErrorEnergyLoss::~G4ErrorEnergyLoss()
50 { 50 {
51 delete theELossForExtrapolator; 51 delete theELossForExtrapolator;
52 } 52 }
53 53
54 //-------------------------------------------- 54 //-------------------------------------------------------------------
55 55
56 G4bool G4ErrorEnergyLoss::IsApplicable(const G 56 G4bool G4ErrorEnergyLoss::IsApplicable(const G4ParticleDefinition& aParticleType)
57 { 57 {
58 return (aParticleType.GetPDGCharge() != 0); 58 return (aParticleType.GetPDGCharge() != 0);
59 } 59 }
60 60
61 //-------------------------------------------- 61 //-------------------------------------------------------------------
62 G4VParticleChange* 62 G4VParticleChange*
63 G4ErrorEnergyLoss::AlongStepDoIt(const G4Track 63 G4ErrorEnergyLoss::AlongStepDoIt(const G4Track& aTrack, const G4Step& aStep)
64 { 64 {
65 aParticleChange.Initialize(aTrack); 65 aParticleChange.Initialize(aTrack);
66 66
67 G4ErrorPropagatorData* g4edata = G4ErrorProp 67 G4ErrorPropagatorData* g4edata = G4ErrorPropagatorData::GetErrorPropagatorData();
68 68
69 G4double kinEnergyStart = aTrack.GetKineticE 69 G4double kinEnergyStart = aTrack.GetKineticEnergy();
70 G4double step_length = aStep.GetStepLength( 70 G4double step_length = aStep.GetStepLength();
71 71
72 const G4Material* aMaterial = aTrack.GetMate 72 const G4Material* aMaterial = aTrack.GetMaterial();
73 const G4ParticleDefinition* aParticleDef = a 73 const G4ParticleDefinition* aParticleDef = aTrack.GetDynamicParticle()->GetDefinition();
74 G4double kinEnergyEnd = kinEnergyStart; 74 G4double kinEnergyEnd = kinEnergyStart;
75 75
76 // backward - energy increased 76 // backward - energy increased
77 if( g4edata->GetMode() == G4ErrorMode(G4Erro 77 if( g4edata->GetMode() == G4ErrorMode(G4ErrorMode_PropBackwards) ) {
78 kinEnergyEnd = theELossForExtrapolator->En 78 kinEnergyEnd = theELossForExtrapolator->EnergyBeforeStep( kinEnergyStart,
79 step_length, 79 step_length,
80 aMaterial, 80 aMaterial,
81 aParticleDef ); 81 aParticleDef );
82 G4double kinEnergyHalfStep = (kinEnergySta 82 G4double kinEnergyHalfStep = (kinEnergyStart + kinEnergyEnd) * 0.5;
83 83
84 #ifdef G4VERBOSE 84 #ifdef G4VERBOSE
85 if(G4ErrorPropagatorData::verbose() >= 3 ) 85 if(G4ErrorPropagatorData::verbose() >= 3 )
86 G4cout << " G4ErrorEnergyLoss FWD end " < 86 G4cout << " G4ErrorEnergyLoss FWD end " << kinEnergyEnd
87 << " halfstep " << kinEnergyHalfStep << G 87 << " halfstep " << kinEnergyHalfStep << G4endl;
88 #endif 88 #endif
89 89
90 //--- rescale to energy lost at 1/2 step 90 //--- rescale to energy lost at 1/2 step
91 kinEnergyEnd = theELossForExtrapolator->En 91 kinEnergyEnd = theELossForExtrapolator->EnergyBeforeStep( kinEnergyHalfStep,
92 step_length, 92 step_length,
93 aMaterial, 93 aMaterial,
94 aParticleDef ); 94 aParticleDef );
95 kinEnergyEnd = kinEnergyStart - (kinEnergy 95 kinEnergyEnd = kinEnergyStart - (kinEnergyHalfStep - kinEnergyEnd );
96 96
97 // forward - energy decreased 97 // forward - energy decreased
98 } else { 98 } else {
99 kinEnergyEnd = theELossForExtrapolator->En 99 kinEnergyEnd = theELossForExtrapolator->EnergyAfterStep( kinEnergyStart,
100 step_length, 100 step_length,
101 aMaterial, 101 aMaterial,
102 aParticleDef ); 102 aParticleDef );
103 G4double kinEnergyHalfStep = (kinEnergySta 103 G4double kinEnergyHalfStep = (kinEnergyStart + kinEnergyEnd) * 0.5;
104 #ifdef G4VERBOSE 104 #ifdef G4VERBOSE
105 if(G4ErrorPropagatorData::verbose() >= 3 ) 105 if(G4ErrorPropagatorData::verbose() >= 3 )
106 G4cout << " G4ErrorEnergyLoss BCKD end " 106 G4cout << " G4ErrorEnergyLoss BCKD end " << kinEnergyEnd
107 << " halfstep " << kinEnergyHalfStep << G 107 << " halfstep " << kinEnergyHalfStep << G4endl;
108 #endif 108 #endif
109 109
110 //--- rescale to energy lost at 1/2 step 110 //--- rescale to energy lost at 1/2 step
111 kinEnergyEnd = theELossForExtrapolator->En 111 kinEnergyEnd = theELossForExtrapolator->EnergyAfterStep( kinEnergyHalfStep,
112 step_length, 112 step_length,
113 aMaterial, 113 aMaterial,
114 aParticleDef ); 114 aParticleDef );
115 kinEnergyEnd = kinEnergyStart - (kinEnergy 115 kinEnergyEnd = kinEnergyStart - (kinEnergyHalfStep - kinEnergyEnd );
116 } 116 }
117 117
118 G4double edepo = kinEnergyEnd - kinEnergySta 118 G4double edepo = kinEnergyEnd - kinEnergyStart;
119 119
120 #ifdef G4VERBOSE 120 #ifdef G4VERBOSE
121 if( G4ErrorPropagatorData::verbose() >= 2 ) 121 if( G4ErrorPropagatorData::verbose() >= 2 )
122 G4cout << "AlongStepDoIt Estart= " << kinE 122 G4cout << "AlongStepDoIt Estart= " << kinEnergyStart << " Eend " << kinEnergyEnd
123 << " Ediff " << kinEnergyStart-kinEnergyE 123 << " Ediff " << kinEnergyStart-kinEnergyEnd << " step= " << step_length
124 << " mate= " << aMaterial->GetName() 124 << " mate= " << aMaterial->GetName()
125 << " particle= " << aParticleDef->GetPart 125 << " particle= " << aParticleDef->GetParticleName() << G4endl;
126 #endif 126 #endif
127 127
128 aParticleChange.ClearDebugFlag(); 128 aParticleChange.ClearDebugFlag();
129 aParticleChange.ProposeLocalEnergyDeposit( e 129 aParticleChange.ProposeLocalEnergyDeposit( edepo );
130 aParticleChange.SetNumberOfSecondaries(0); 130 aParticleChange.SetNumberOfSecondaries(0);
131 131
132 aParticleChange.ProposeEnergy( kinEnergyEnd 132 aParticleChange.ProposeEnergy( kinEnergyEnd );
133 133
134 return &aParticleChange; 134 return &aParticleChange;
135 } 135 }
136 136
137 137
138 //-------------------------------------------- 138 //-------------------------------------------------------------------
139 G4double G4ErrorEnergyLoss::GetContinuousStepL 139 G4double G4ErrorEnergyLoss::GetContinuousStepLimit(const G4Track& aTrack,
140 G4double, G4double, G4double& ) 140 G4double, G4double, G4double& )
141 { 141 {
142 G4double ekin = aTrack.GetKineticEnergy(); 142 G4double ekin = aTrack.GetKineticEnergy();
143 const G4Material* mat = aTrack.GetMaterial() 143 const G4Material* mat = aTrack.GetMaterial();
144 const G4ParticleDefinition* part = 144 const G4ParticleDefinition* part =
145 aTrack.GetDynamicParticle()->GetDefinition 145 aTrack.GetDynamicParticle()->GetDefinition();
146 G4double range = theELossForExtrapolator->Co 146 G4double range = theELossForExtrapolator->ComputeRange(ekin, part, mat);
147 G4double delta = std::max(range*theFractionL 147 G4double delta = std::max(range*theFractionLimit, theStepLimit);
148 #ifdef G4VERBOSE 148 #ifdef G4VERBOSE
149 if(G4ErrorPropagatorData::verbose() >= 2 ) { 149 if(G4ErrorPropagatorData::verbose() >= 2 ) {
150 G4cout << " G4ErrorEnergyLoss: limiting St 150 G4cout << " G4ErrorEnergyLoss: limiting Step " << delta
151 << " energy(GeV) " << ekin / CLHEP::GeV 151 << " energy(GeV) " << ekin / CLHEP::GeV
152 << " for " << part->GetParticleName() << 152 << " for " << part->GetParticleName() << G4endl;
153 } 153 }
154 #endif 154 #endif
155 return delta; 155 return delta;
156 } 156 }
157 157