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25 // 22 //
26 // 23 //
27 // ------------------------------------------- 24 // --------------------------------------------------------------
28 // GEANT 4 - ULTRA experiment 25 // GEANT 4 - ULTRA experiment example
29 // ------------------------------------------- 26 // --------------------------------------------------------------
30 // 27 //
31 // Code developed by: 28 // Code developed by:
32 // B. Tome, M.C. Espirito-Santo, A. Trindade, << 29 // B. Tome, M.C. Espirito-Santo, A. Trindade, P. Rodrigues
33 // 30 //
34 // **************************************** 31 // ****************************************************
35 // * UltraFresnelLens.cc 32 // * UltraFresnelLens.cc
36 // **************************************** 33 // ****************************************************
37 // 34 //
38 // Class for definition of the Ultra Fresne << 35 // Class for definition of the Ultra Fresnel Lens.
39 // An UltraFresnelLens object is created i 36 // An UltraFresnelLens object is created in the UltraDetectorConstruction class.
40 // This class makes use of the UltraFresnel 37 // This class makes use of the UltraFresnelLensParameterisation class.
41 // The lens profile is define through the G << 38 // The lens profile is define through the GetSagita method.
42 // 39 //
43 #include <cmath> 40 #include <cmath>
44 #include "UltraFresnelLens.hh" 41 #include "UltraFresnelLens.hh"
45 #include "UltraFresnelLensParameterisation.hh" 42 #include "UltraFresnelLensParameterisation.hh"
46 43
47 #include "G4PhysicalConstants.hh" <<
48 #include "G4SystemOfUnits.hh" <<
49 #include "G4Material.hh" 44 #include "G4Material.hh"
50 #include "G4MaterialTable.hh" 45 #include "G4MaterialTable.hh"
51 #include "G4Tubs.hh" 46 #include "G4Tubs.hh"
52 #include "G4Cons.hh" 47 #include "G4Cons.hh"
53 #include "G4LogicalVolume.hh" 48 #include "G4LogicalVolume.hh"
54 #include "G4PVPlacement.hh" 49 #include "G4PVPlacement.hh"
55 #include "G4PVParameterised.hh" 50 #include "G4PVParameterised.hh"
56 #include "G4ThreeVector.hh" 51 #include "G4ThreeVector.hh"
57 #include "G4VisAttributes.hh" 52 #include "G4VisAttributes.hh"
58 53
59 UltraFresnelLens::UltraFresnelLens(G4double Di << 54 UltraFresnelLens::UltraFresnelLens( G4double Diameter, G4int nGrooves, G4Material* Material, G4VPhysicalVolume * MotherPV, G4ThreeVector Pos)
60 { 55 {
61 56
62 LensMaterial = Material ; 57 LensMaterial = Material ;
63 LensDiameter = Diameter ; 58 LensDiameter = Diameter ;
64 NumberOfGrooves = nGrooves; 59 NumberOfGrooves = nGrooves;
65 GrooveWidth = (Diameter/2.0)/nGrooves ; 60 GrooveWidth = (Diameter/2.0)/nGrooves ;
66 LensPosition = Pos ; 61 LensPosition = Pos ;
67 62
68 if( GrooveWidth <= 0 ){ 63 if( GrooveWidth <= 0 ){
69 G4Exception("UltraFresnelLens::UltraFresnel << 64 G4Exception("UltraFresnelLens constructor: GrooveWidth<=0");
70 "UltraFresnelLens constructor: Groove <<
71 } 65 }
72 66
73 67
74 auto Rmin1 = (NumberOfGrooves-1)*(GrooveWidth << 68 G4double Rmin1 = (NumberOfGrooves-1)*(GrooveWidth) ;
75 auto Rmax1 = (NumberOfGrooves-0)*(GrooveWidth << 69 G4double Rmax1 = (NumberOfGrooves-0)*(GrooveWidth) ;
76 LensThickness = GetSagita(Rmax1)-GetSagita(R << 70 LensThickness = GetSagita(Rmax1)-GetSagita(Rmin1) ; // Height of the highest groove
77 71
78 BuildLens(MotherPV) ; 72 BuildLens(MotherPV) ;
79 73
80 } 74 }
81 75
82 76
83 UltraFresnelLens::~UltraFresnelLens( ) 77 UltraFresnelLens::~UltraFresnelLens( )
84 {;} 78 {;}
85 79
86 //....oooOO0OOooo........oooOO0OOooo........oo 80 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
87 81
88 void UltraFresnelLens::BuildLens(G4VPhysicalVo 82 void UltraFresnelLens::BuildLens(G4VPhysicalVolume *MotherPV){
89 83
90 auto StartPhi = 0.0 ; << 84 G4double StartPhi = 0.0 ;
91 auto DeltaPhi = twopi ; << 85 G4double DeltaPhi = twopi ;
92 86
93 auto LensMotherDz = LensThickness ; << 87 G4double LensMotherDz = LensThickness ;
94 88
95 89
96 auto LensMotherCylinder << 90 G4Tubs *LensMotherCylinder
97 = new G4Tubs("LensMotherCylinder",0.0*mm,L 91 = new G4Tubs("LensMotherCylinder",0.0*mm,LensDiameter/2.0,LensMotherDz/2.0,StartPhi,DeltaPhi);
98 92
99 auto LensMotherMaterial = MotherPV->GetLogical << 93 G4Material *LensMotherMaterial = MotherPV->GetLogicalVolume()->GetMaterial() ;
100 auto LensMotherLV << 94 G4LogicalVolume *LensMotherLV
101 = new G4LogicalVolume(LensMotherCylinder,L 95 = new G4LogicalVolume(LensMotherCylinder,LensMotherMaterial,"LensMotherLV",0,0,0);
102 auto LensMotherPV << 96 G4VPhysicalVolume *LensMotherPV
103 = new G4PVPlacement(0,LensPosition,"LensMo 97 = new G4PVPlacement(0,LensPosition,"LensMotherPV",LensMotherLV,MotherPV,false,0);
104 98
105 LensMotherLV->SetVisAttributes (G4VisAttribute << 99 LensMotherLV->SetVisAttributes (G4VisAttributes::Invisible);
106 100
107 101
108 auto solidGroove << 102 G4Cons *solidGroove
109 = new G4Cons("Groove",40.0*mm,50.0*mm,40.0*m 103 = new G4Cons("Groove",40.0*mm,50.0*mm,40.0*mm,40.001*mm,1.0*mm,StartPhi,DeltaPhi);
110 104
111 auto logicalGroove << 105 G4LogicalVolume *logicalGroove
112 = new G4LogicalVolume(solidGroove,LensMate 106 = new G4LogicalVolume(solidGroove,LensMaterial,"Groove_log",0,0,0);
113 107
114 auto FresnelLensParam = new UltraFresnelLensPa << 108 G4VPVParameterisation *FresnelLensParam = new UltraFresnelLensParameterisation(this);
115 109
116 LensPhysicalVolume = << 110 LensPhysicalVolume =
117 new G4PVParameterised("LensPV",logicalGroove, 111 new G4PVParameterised("LensPV",logicalGroove,LensMotherPV,kZAxis,NumberOfGrooves,FresnelLensParam) ;
118 112
119 } 113 }
120 114
121 //....oooOO0OOooo........oooOO0OOooo........oo 115 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
122 116
123 G4double UltraFresnelLens::GetSagita(G4double << 117 G4double UltraFresnelLens::GetSagita(G4double radius)
124 { 118 {
125 auto Conic = -1.0; << 119
126 auto Curvature = 0.00437636761488/mm ; << 120 G4double Conic = -1.0;
127 G4double Aspher[8] = {4.206739256e-05/(mm), << 121 G4double Curvature = 0.00437636761488/mm ;
128 9.6440152e-10/(mm3), << 122 G4double Aspher[8] = { 4.206739256e-05/(mm),
129 -1.4884317e-15/(mm2*mm3 << 123 9.6440152e-10/(mm3),
>> 124 -1.4884317e-15/(mm2*mm3),
130 0.0/(mm*mm3*mm3), 125 0.0/(mm*mm3*mm3),
131 0.0/(mm3*mm3*mm3), 126 0.0/(mm3*mm3*mm3),
132 0.0/(mm2*mm3*mm3*mm3), 127 0.0/(mm2*mm3*mm3*mm3),
133 0.0/(mm*mm3*mm3*mm3*mm 128 0.0/(mm*mm3*mm3*mm3*mm3),
134 0.0/(mm*3*mm3*mm3*mm3* 129 0.0/(mm*3*mm3*mm3*mm3*mm3)
135 }; 130 };
136 131
137 auto TotAspher = 0.0*mm ; << 132 G4double TotAspher = 0.0*mm ;
138 133
139 for(G4int k=1;k<9;k++){ 134 for(G4int k=1;k<9;k++){
140 TotAspher += Aspher[k-1]*std::pow(radius,2 135 TotAspher += Aspher[k-1]*std::pow(radius,2*k) ;
141 } 136 }
142 137
143 auto ArgSqrt = 1.0-(1.0+Conic)*std::pow(Curv << 138 G4double ArgSqrt = 1.0-(1.0+Conic)*std::pow(Curvature,2)*std::pow(radius,2) ;
144 139
145 if (ArgSqrt < 0.0){ 140 if (ArgSqrt < 0.0){
146 G4Exception("UltraFresnelLens::GetSagita() << 141 G4Exception("UltraFresnelLensParameterisation::Sagita: Square Root of <0 !");
147 FatalException, <<
148 "UltraFresnelLensParameterisation::Sagita: <<
149 } 142 }
150 auto Sagita_value = Curvature*std::pow(radiu << 143 G4double Sagita_value = Curvature*std::pow(radius,2)/(1.0+std::sqrt(ArgSqrt)) + TotAspher;
151 144
152 return Sagita_value ; 145 return Sagita_value ;
153 146
154 << 147
155 } 148 }
>> 149
>> 150 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 151
>> 152
156 153