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Geant4 examples
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Geant4 examples
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Detector construction class to define materials and geometry. More...
#include <Doxymodules_basic.h>
Public Member Functions | |
| B1DetectorConstruction () | |
| virtual | ~B1DetectorConstruction () |
| virtual G4VPhysicalVolume * | Construct () |
Detector construction class to define materials and geometry.
Definition at line 20 of file Doxymodules_basic.h.
| B1DetectorConstruction::B1DetectorConstruction | ( | ) |
Definition at line 47 of file B1DetectorConstruction.cc.
: G4VUserDetectorConstruction() { }
| B1DetectorConstruction::~B1DetectorConstruction | ( | ) | [virtual] |
Definition at line 53 of file B1DetectorConstruction.cc.
{ }
| G4VPhysicalVolume * B1DetectorConstruction::Construct | ( | ) | [virtual] |
Implements G4VUserDetectorConstruction.
Definition at line 58 of file B1DetectorConstruction.cc.
{
// Get nist material manager
G4NistManager* nist = G4NistManager::Instance();
// Envelope parameters
//
G4double env_sizeXY = 20*cm, env_sizeZ = 30*cm;
G4Material* env_mat = nist->FindOrBuildMaterial("G4_WATER");
// Option to switch on/off checking of volumes overlaps
//
G4bool checkOverlaps = true;
//
// World
//
G4double world_sizeXY = 1.2*env_sizeXY;
G4double world_sizeZ = 1.2*env_sizeZ;
G4Material* world_mat = nist->FindOrBuildMaterial("G4_AIR");
G4Box* solidWorld =
new G4Box("World", //its name
0.5*world_sizeXY, 0.5*world_sizeXY, 0.5*world_sizeZ); //its size
G4LogicalVolume* logicWorld =
new G4LogicalVolume(solidWorld, //its solid
world_mat, //its material
"World"); //its name
G4VPhysicalVolume* physWorld =
new G4PVPlacement(0, //no rotation
G4ThreeVector(), //at (0,0,0)
logicWorld, //its logical volume
"World", //its name
0, //its mother volume
false, //no boolean operation
0, //copy number
checkOverlaps); //overlaps checking
//
// Envelope
//
G4Box* solidEnv =
new G4Box("Envelope", //its name
0.5*env_sizeXY, 0.5*env_sizeXY, 0.5*env_sizeZ); //its size
G4LogicalVolume* logicEnv =
new G4LogicalVolume(solidEnv, //its solid
env_mat, //its material
"Envelope"); //its name
new G4PVPlacement(0, //no rotation
G4ThreeVector(), //at (0,0,0)
logicEnv, //its logical volume
"Envelope", //its name
logicWorld, //its mother volume
false, //no boolean operation
0, //copy number
checkOverlaps); //overlaps checking
//
// Shape 1
//
G4Material* shape1_mat = nist->FindOrBuildMaterial("G4_A-150_TISSUE");
G4ThreeVector pos1 = G4ThreeVector(0, 2*cm, -7*cm);
// Conical section shape
G4double shape1_rmina = 0.*cm, shape1_rmaxa = 2.*cm;
G4double shape1_rminb = 0.*cm, shape1_rmaxb = 4.*cm;
G4double shape1_hz = 3.*cm;
G4double shape1_phimin = 0.*deg, shape1_phimax = 360.*deg;
G4Cons* solidShape1 =
new G4Cons("Shape1",
shape1_rmina, shape1_rmaxa, shape1_rminb, shape1_rmaxb, shape1_hz,
shape1_phimin, shape1_phimax);
/*
// Full sphere shape
G4double shape1_rmax = 4*cm;
G4Orb* solidShape1 =
new G4Orb("Shape1", //its name
shape1_rmax); //its size
// Sphere shape
G4double shape1_rmin = 0*cm, shape1_rmax = 4*cm;
G4double shape1_thetamin = 0.*deg, shape1_thetamax = 180.*deg;
G4double shape1_phimin = 0.*deg, shape1_phimax = 360.*deg;
G4Sphere* solidShape1 =
new G4Sphere("Shape1", //its name
shape1_rmin, shape1_rmax, //its size
shape1_phimin, shape1_phimax, //phi angle
shape1_thetamin, shape1_thetamax); //theta angle
// Box shape
G4double shape1_dx = 8*cm, shape1_dy = 8*cm, shape1_dz = 8*cm;
G4Box* solidShape1 =
new G4Box("Shape1", //its name
0.5*shape1_dx, 0.5*shape1_dy, 0.5*shape1_dz); //its size
*/
G4LogicalVolume* logicShape1 =
new G4LogicalVolume(solidShape1, //its solid
shape1_mat, //its material
"Shape1"); //its name
new G4PVPlacement(0, //no rotation
pos1, //at position
logicShape1, //its logical volume
"Shape1", //its name
logicEnv, //its mother volume
false, //no boolean operation
0, //copy number
checkOverlaps); //overlaps checking
//
// Shape 2
//
G4Material* shape2_mat = nist->FindOrBuildMaterial("G4_BONE_COMPACT_ICRU");
G4ThreeVector pos2 = G4ThreeVector(0, -1*cm, 7*cm);
/*
// Shape 2 - conical section shape
G4double shape2_rmina = 0.*cm, shape2_rmaxa = 5.*cm;
G4double shape2_rminb = 0.*cm, shape2_rmaxb = 8.*cm;
G4double shape2_hz = 3.*cm;
G4double shape2_phimin = 0.*deg, shape2_phimax = 360.*deg;
G4Cons* solidShape2 =
new G4Cons("Shape2",
shape2_rmina, shape2_rmaxa, shape2_rminb, shape2_rmaxb, shape2_hz,
shape2_phimin, shape2_phimax);
*/
// Trapezoid shape
G4double shape2_dxa = 12*cm, shape2_dxb = 12*cm;
G4double shape2_dya = 10*cm, shape2_dyb = 16*cm;
G4double shape2_dz = 6*cm;
G4Trd* solidShape2 =
new G4Trd("Shape2", //its name
0.5*shape2_dxa, 0.5*shape2_dxb,
0.5*shape2_dya, 0.5*shape2_dyb, 0.5*shape2_dz); //its size
G4LogicalVolume* logicShape2 =
new G4LogicalVolume(solidShape2, //its solid
shape2_mat, //its material
"Shape2"); //its name
new G4PVPlacement(0, //no rotation
pos2, //at position
logicShape2, //its logical volume
"Shape2", //its name
logicEnv, //its mother volume
false, //no boolean operation
0, //copy number
checkOverlaps); //overlaps checking
// Set scoring volume to stepping action
// (where we will account energy deposit)
//
B1SteppingAction* steppingAction = B1SteppingAction::Instance();
steppingAction->SetVolume(logicShape2);
//
//always return the physical World
//
return physWorld;
}
1.7.4