Ex06DetectorConstructionOld.cxx

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//------------------------------------------------
// The Virtual Monte Carlo examples
// Copyright (C) 2007 - 2014 Ivana Hrivnacova
// All rights reserved.
//
// For the licensing terms see geant4_vmc/LICENSE.
// Contact: root-vmc@cern.ch
//-------------------------------------------------
 
/// \file Ex06DetectorConstructionOld.cxx
/// \brief Implementation of the Ex06DetectorConstructionOld class
///
/// Geant4 ExampleN06 adapted to Virtual Monte Carlo \n
/// Id: ExN06DetectorConstruction.cc,v 1.14 2004/03/17 22:41:12 gum Exp \n
/// GEANT4 tag Name: geant4-07-00-cand-01
///
/// \date 16/05/2005
/// \author I. Hrivnacova; IPN, Orsay
 
#include <Riostream.h>
#include <TGeoManager.h>
#include <TVirtualMC.h>
 
#include "Ex06DetectorConstructionOld.h"
 
/// \cond CLASSIMP
ClassImp(Ex06DetectorConstructionOld)
  /// \endcond
 
  //_____________________________________________________________________________
  Ex06DetectorConstructionOld::Ex06DetectorConstructionOld()
  : TObject(),
    fWorldSize(1500),   // 15*m
    fExpHallSize(1000), // 10*m
    fTankSize(500),     // 5*m
    fBubbleSize(50),    // 0.5*m
    fImedAir(-1),
    fImedWater(-1)
{
  /// Default constuctor
}
 
//_____________________________________________________________________________
Ex06DetectorConstructionOld::~Ex06DetectorConstructionOld()
{
  /// Destructor
}
 
//
// public methods
//
 
//_____________________________________________________________________________
void Ex06DetectorConstructionOld::ConstructMaterials()
{
  /// Construct materials using VMC functions
 
  Double_t a1[2] = { 14.01, 16.00 };
  Double_t z1[2] = { 7.0, 8.0 };
  Double_t w1[2] = { 0.7, 0.3 };
  Double_t density = 1.29e-03;
  Int_t imatAir;
  gMC->Mixture(imatAir, "Air", a1, z1, density, 2, w1);
 
  Double_t a2[2] = { 1.01, 16.00 };
  Double_t z2[2] = { 1.0, 8.0 };
  Double_t w2[2] = { 2.0, 1.0 };
  density = 1.0;
  Int_t imatWater;
  gMC->Mixture(imatWater, "Water", a2, z2, density, -2, w2);
 
  //
  // Tracking medias
  //
 
  Int_t ifield = 0;        // No magnetic field
  Double_t fieldm = 0.;    //
  Double_t epsil = .001;   // Tracking precision,
  Double_t stemax = -0.01; // Maximum displacement for multiple scat
  Double_t tmaxfd = -20.;  // Maximum angle due to field deflection
  Double_t deemax = -.3;   // Maximum fractional energy loss, DLS
  Double_t stmin = -.8;
  Float_t* ubuf = 0;
  gMC->Medium(fImedAir, "Air", imatAir, 0, ifield, fieldm, tmaxfd, stemax,
    deemax, epsil, stmin, ubuf, 0);
  gMC->Medium(fImedWater, "Water", imatWater, 0, ifield, fieldm, tmaxfd, stemax,
    deemax, epsil, stmin, ubuf, 0);
}
 
//_____________________________________________________________________________
void Ex06DetectorConstructionOld::ConstructGeometry()
{
  /// Contruct volumes using VMC functions
 
  // The world
  //
  Double_t world[3];
  world[0] = fWorldSize;
  world[1] = fWorldSize;
  world[2] = fWorldSize;
  gMC->Gsvolu("WRLD", "BOX", fImedAir, world, 3);
 
  // The experimental Hall
  //
  Double_t expHall[3];
  expHall[0] = fExpHallSize;
  expHall[1] = fExpHallSize;
  expHall[2] = fExpHallSize;
  gMC->Gsvolu("EXPH", "BOX", fImedAir, expHall, 3);
 
  Double_t posX = 0.;
  Double_t posY = 0.;
  Double_t posZ = 0.;
  gMC->Gspos("EXPH", 1, "WRLD", posX, posY, posZ, 0, "ONLY");
 
  // The Water Tank
  //
  Double_t waterTank[3];
  waterTank[0] = fTankSize;
  waterTank[1] = fTankSize;
  waterTank[2] = fTankSize;
  gMC->Gsvolu("TANK", "BOX", fImedWater, waterTank, 3);
 
  gMC->Gspos("TANK", 1, "EXPH", posX, posY, posZ, 0, "ONLY");
 
  // The Air Bubble
  //
  Double_t bubbleAir[3];
  bubbleAir[0] = fBubbleSize;
  bubbleAir[1] = fBubbleSize;
  bubbleAir[2] = fBubbleSize;
  gMC->Gsvolu("BUBL", "BOX", fImedAir, bubbleAir, 3);
 
  posX = 0.;
  posY = 250.;
  posZ = 0.;
  gMC->Gspos("BUBL", 1, "TANK", posX, posY, posZ, 0, "ONLY");
}