B02ScoringDetectorConstruction.cc

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// $Id$
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#include "globals.hh"

#include "B02ScoringDetectorConstruction.hh"

#include "G4Material.hh"
#include "G4Tubs.hh"
#include "G4LogicalVolume.hh"
#include "G4ThreeVector.hh"
#include "G4PVPlacement.hh"
#include "G4PhysicalConstants.hh"
#include "G4SystemOfUnits.hh"

G4VPhysicalVolume* B02ScoringDetectorConstruction::Construct()
{  
  // world score cylinder volume

  G4String name;

  G4double density     = universe_mean_density;
  G4double pressure    = 3.e-18*pascal;
  G4double temperature = 2.73*kelvin;
  G4double z,A;
  G4Material *Galactic = 
    new G4Material(name="Galactic", z=1., A=1.01*g/mole, density,
                   kStateGas,temperature,pressure);
  G4Material *WorldMaterial = Galactic;

  // world solid

  G4double innerRadiusCylinder = 0*cm;
  G4double outerRadiusCylinder = 101*cm;
  G4double hightCylinder       = 16*cm;
  G4double startAngleCylinder  = 0*deg;
  G4double spanningAngleCylinder    = 360*deg;


  G4Tubs *score_worldCylinder = new G4Tubs("score_worldCylinder",
                                     innerRadiusCylinder,
                                     outerRadiusCylinder,
                                     hightCylinder,
                                     startAngleCylinder,
                                     spanningAngleCylinder);

  // logical score world

  G4LogicalVolume *score_worldCylinder_log = 
    new G4LogicalVolume(score_worldCylinder, WorldMaterial, "score_worldCylinder_log");
  
  // physical world

  name = "score_world_phys";
  G4VPhysicalVolume* score_worldCylinder_phys =
    new G4PVPlacement(0, G4ThreeVector(0,0,0), score_worldCylinder_log,
                      name, 0, false, 0);


  // score M1, D1, M2, D2


  G4double innerRadiusShield = 0*cm;
  G4double outerRadiusShield = 101*cm;
  G4double MhightShield       = 7.5002*cm;
  G4double startAngleShield  = 0*deg;
  G4double spanningAngleShield    = 360*deg;

  G4Tubs *tube_M = new G4Tubs("tube_M",
                              innerRadiusShield,
                              outerRadiusShield,
                              MhightShield,
                              startAngleShield,
                              spanningAngleShield);
  
  G4LogicalVolume *M1_log = 
    new G4LogicalVolume(tube_M, Galactic, "M1_log");
  
  name = "scorecell: M1";
  G4double pos_x = 0*cm;
  G4double pos_y = 0*cm;
  G4double pos_z = -1*MhightShield;
  
//  G4VPhysicalVolume *pM1 = 
    new G4PVPlacement(0, G4ThreeVector(pos_x, pos_y, pos_z),
                      M1_log, name, score_worldCylinder_log, false, 0);
  


  innerRadiusShield = 0*cm;
  outerRadiusShield = 101*cm;
  G4double DhightShield       = 2*cm;
  startAngleShield  = 0*deg;
  spanningAngleShield    = 360*deg;
  

  G4Tubs *tube_D = new G4Tubs("tube_D",
                              innerRadiusShield,
                              outerRadiusShield,
                              DhightShield,
                              startAngleShield,
                              spanningAngleShield);
  
  G4LogicalVolume *D1_log = 
    new G4LogicalVolume(tube_D, Galactic, "D1_log");
  
  name ="scorecell: D1";
  
//  G4VPhysicalVolume *pD1 = 
    new G4PVPlacement(0, G4ThreeVector(0, 0, 0),
                      D1_log, name, M1_log, false, 0);

  
  G4LogicalVolume *M2_log = 
    new G4LogicalVolume(tube_M, Galactic, "M2_log");
  
  name = "scorecell: M2";
  pos_x = 0*cm;
  pos_y = 0*cm;
  pos_z = MhightShield;
//  G4VPhysicalVolume *pM2 = 
    new G4PVPlacement(0, G4ThreeVector(pos_x, pos_y, pos_z),
                      M2_log, name, score_worldCylinder_log, false, 0);
  

  G4LogicalVolume *D2_log = 
    new G4LogicalVolume(tube_D, Galactic, "D2_log");
  
  name ="scorecell: D2";
  
//  G4VPhysicalVolume *pD2 = 
    new G4PVPlacement(0, G4ThreeVector(0, 0, 0),
                      D2_log, name, M2_log, false, 0);
  
  
  return score_worldCylinder_phys;
}