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25 // 25 //
26 // 26 //
27 // ------------------------------------------- 27 // --------------------------------------------------------------
28 // GEANT 4 - ULTRA experiment 28 // GEANT 4 - ULTRA experiment example
29 // ------------------------------------------- 29 // --------------------------------------------------------------
30 // 30 //
31 // Code developed by: 31 // Code developed by:
32 // B. Tome, M.C. Espirito-Santo, A. Trindade, << 32 // B. Tome, M.C. Espirito-Santo, A. Trindade, P. Rodrigues
33 // 33 //
34 // **************************************** 34 // ****************************************************
35 // * UltraFresnelLens.cc 35 // * UltraFresnelLens.cc
36 // **************************************** 36 // ****************************************************
37 // 37 //
38 // Class for definition of the Ultra Fresne << 38 // Class for definition of the Ultra Fresnel Lens.
39 // An UltraFresnelLens object is created i 39 // An UltraFresnelLens object is created in the UltraDetectorConstruction class.
40 // This class makes use of the UltraFresnel 40 // This class makes use of the UltraFresnelLensParameterisation class.
41 // The lens profile is define through the G << 41 // The lens profile is define through the GetSagita method.
42 // 42 //
43 #include <cmath> 43 #include <cmath>
44 #include "UltraFresnelLens.hh" 44 #include "UltraFresnelLens.hh"
45 #include "UltraFresnelLensParameterisation.hh" 45 #include "UltraFresnelLensParameterisation.hh"
46 46
47 #include "G4PhysicalConstants.hh" 47 #include "G4PhysicalConstants.hh"
48 #include "G4SystemOfUnits.hh" 48 #include "G4SystemOfUnits.hh"
49 #include "G4Material.hh" 49 #include "G4Material.hh"
50 #include "G4MaterialTable.hh" 50 #include "G4MaterialTable.hh"
51 #include "G4Tubs.hh" 51 #include "G4Tubs.hh"
52 #include "G4Cons.hh" 52 #include "G4Cons.hh"
53 #include "G4LogicalVolume.hh" 53 #include "G4LogicalVolume.hh"
54 #include "G4PVPlacement.hh" 54 #include "G4PVPlacement.hh"
55 #include "G4PVParameterised.hh" 55 #include "G4PVParameterised.hh"
56 #include "G4ThreeVector.hh" 56 #include "G4ThreeVector.hh"
57 #include "G4VisAttributes.hh" 57 #include "G4VisAttributes.hh"
58 58
59 UltraFresnelLens::UltraFresnelLens(G4double Di << 59 UltraFresnelLens::UltraFresnelLens( G4double Diameter, G4int nGrooves, G4Material* Material, G4VPhysicalVolume * MotherPV, G4ThreeVector Pos)
60 { 60 {
61 61
62 LensMaterial = Material ; 62 LensMaterial = Material ;
63 LensDiameter = Diameter ; 63 LensDiameter = Diameter ;
64 NumberOfGrooves = nGrooves; 64 NumberOfGrooves = nGrooves;
65 GrooveWidth = (Diameter/2.0)/nGrooves ; 65 GrooveWidth = (Diameter/2.0)/nGrooves ;
66 LensPosition = Pos ; 66 LensPosition = Pos ;
67 67
68 if( GrooveWidth <= 0 ){ 68 if( GrooveWidth <= 0 ){
69 G4Exception("UltraFresnelLens::UltraFresnel 69 G4Exception("UltraFresnelLens::UltraFresnelLens()","AirSh001",FatalException,
70 "UltraFresnelLens constructor: Groove 70 "UltraFresnelLens constructor: GrooveWidth<=0");
71 } 71 }
72 72
73 73
74 auto Rmin1 = (NumberOfGrooves-1)*(GrooveWidth << 74 G4double Rmin1 = (NumberOfGrooves-1)*(GrooveWidth) ;
75 auto Rmax1 = (NumberOfGrooves-0)*(GrooveWidth << 75 G4double Rmax1 = (NumberOfGrooves-0)*(GrooveWidth) ;
76 LensThickness = GetSagita(Rmax1)-GetSagita(R << 76 LensThickness = GetSagita(Rmax1)-GetSagita(Rmin1) ; // Height of the highest groove
77 77
78 BuildLens(MotherPV) ; 78 BuildLens(MotherPV) ;
79 79
80 } 80 }
81 81
82 82
83 UltraFresnelLens::~UltraFresnelLens( ) 83 UltraFresnelLens::~UltraFresnelLens( )
84 {;} 84 {;}
85 85
86 //....oooOO0OOooo........oooOO0OOooo........oo 86 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
87 87
88 void UltraFresnelLens::BuildLens(G4VPhysicalVo 88 void UltraFresnelLens::BuildLens(G4VPhysicalVolume *MotherPV){
89 89
90 auto StartPhi = 0.0 ; << 90 G4double StartPhi = 0.0 ;
91 auto DeltaPhi = twopi ; << 91 G4double DeltaPhi = twopi ;
92 92
93 auto LensMotherDz = LensThickness ; << 93 G4double LensMotherDz = LensThickness ;
94 94
95 95
96 auto LensMotherCylinder << 96 G4Tubs *LensMotherCylinder
97 = new G4Tubs("LensMotherCylinder",0.0*mm,L 97 = new G4Tubs("LensMotherCylinder",0.0*mm,LensDiameter/2.0,LensMotherDz/2.0,StartPhi,DeltaPhi);
98 98
99 auto LensMotherMaterial = MotherPV->GetLogical << 99 G4Material *LensMotherMaterial = MotherPV->GetLogicalVolume()->GetMaterial() ;
100 auto LensMotherLV << 100 G4LogicalVolume *LensMotherLV
101 = new G4LogicalVolume(LensMotherCylinder,L 101 = new G4LogicalVolume(LensMotherCylinder,LensMotherMaterial,"LensMotherLV",0,0,0);
102 auto LensMotherPV << 102 G4VPhysicalVolume *LensMotherPV
103 = new G4PVPlacement(0,LensPosition,"LensMo 103 = new G4PVPlacement(0,LensPosition,"LensMotherPV",LensMotherLV,MotherPV,false,0);
104 104
105 LensMotherLV->SetVisAttributes (G4VisAttribute 105 LensMotherLV->SetVisAttributes (G4VisAttributes::GetInvisible());
106 106
107 107
108 auto solidGroove << 108 G4Cons *solidGroove
109 = new G4Cons("Groove",40.0*mm,50.0*mm,40.0*m 109 = new G4Cons("Groove",40.0*mm,50.0*mm,40.0*mm,40.001*mm,1.0*mm,StartPhi,DeltaPhi);
110 110
111 auto logicalGroove << 111 G4LogicalVolume *logicalGroove
112 = new G4LogicalVolume(solidGroove,LensMate 112 = new G4LogicalVolume(solidGroove,LensMaterial,"Groove_log",0,0,0);
113 113
114 auto FresnelLensParam = new UltraFresnelLensPa << 114 G4VPVParameterisation *FresnelLensParam = new UltraFresnelLensParameterisation(this);
115 115
116 LensPhysicalVolume = << 116 LensPhysicalVolume =
117 new G4PVParameterised("LensPV",logicalGroove, 117 new G4PVParameterised("LensPV",logicalGroove,LensMotherPV,kZAxis,NumberOfGrooves,FresnelLensParam) ;
118 118
119 } 119 }
120 120
121 //....oooOO0OOooo........oooOO0OOooo........oo 121 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
122 122
123 G4double UltraFresnelLens::GetSagita(G4double << 123 G4double UltraFresnelLens::GetSagita(G4double radius)
124 { 124 {
125 auto Conic = -1.0; << 125
126 auto Curvature = 0.00437636761488/mm ; << 126 G4double Conic = -1.0;
127 G4double Aspher[8] = {4.206739256e-05/(mm), << 127 G4double Curvature = 0.00437636761488/mm ;
128 9.6440152e-10/(mm3), << 128 G4double Aspher[8] = { 4.206739256e-05/(mm),
129 -1.4884317e-15/(mm2*mm3 << 129 9.6440152e-10/(mm3),
>> 130 -1.4884317e-15/(mm2*mm3),
130 0.0/(mm*mm3*mm3), 131 0.0/(mm*mm3*mm3),
131 0.0/(mm3*mm3*mm3), 132 0.0/(mm3*mm3*mm3),
132 0.0/(mm2*mm3*mm3*mm3), 133 0.0/(mm2*mm3*mm3*mm3),
133 0.0/(mm*mm3*mm3*mm3*mm 134 0.0/(mm*mm3*mm3*mm3*mm3),
134 0.0/(mm*3*mm3*mm3*mm3* 135 0.0/(mm*3*mm3*mm3*mm3*mm3)
135 }; 136 };
136 137
137 auto TotAspher = 0.0*mm ; << 138 G4double TotAspher = 0.0*mm ;
138 139
139 for(G4int k=1;k<9;k++){ 140 for(G4int k=1;k<9;k++){
140 TotAspher += Aspher[k-1]*std::pow(radius,2 141 TotAspher += Aspher[k-1]*std::pow(radius,2*k) ;
141 } 142 }
142 143
143 auto ArgSqrt = 1.0-(1.0+Conic)*std::pow(Curv << 144 G4double ArgSqrt = 1.0-(1.0+Conic)*std::pow(Curvature,2)*std::pow(radius,2) ;
144 145
145 if (ArgSqrt < 0.0){ 146 if (ArgSqrt < 0.0){
146 G4Exception("UltraFresnelLens::GetSagita() 147 G4Exception("UltraFresnelLens::GetSagita()","AirSh002",
147 FatalException, 148 FatalException,
148 "UltraFresnelLensParameterisation::Sagita: 149 "UltraFresnelLensParameterisation::Sagita: Square Root of <0 !");
149 } 150 }
150 auto Sagita_value = Curvature*std::pow(radiu << 151 G4double Sagita_value = Curvature*std::pow(radius,2)/(1.0+std::sqrt(ArgSqrt)) + TotAspher;
151 152
152 return Sagita_value ; 153 return Sagita_value ;
153 154
154 << 155
155 } 156 }
>> 157
>> 158 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 159
>> 160
156 161