Gabriele Cosmo
123 lines
4.4 KiB
C++
123 lines
4.4 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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// $Id: RandomDetector.cc,v 1.5 2006/06/29 17:23:16 gunter Exp $
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// GEANT4 tag $Name: geant4-08-01 $
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//
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//
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// --------------------------------------------------------------
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// RandomDetector
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//
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// Author: Martin Liendl - Martin.Liendl@cern.ch
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//
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// --------------------------------------------------------------
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//
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#include "globals.hh"
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#include "Randomize.hh"
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#include "G4PVPlacement.hh"
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#include "G4LogicalVolume.hh"
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#include "G4Box.hh"
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#include "G4Material.hh"
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#include "RandomDetector.hh"
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//RandomDetector::RandomDetector(G4int levels, G4int perLevel, G4double prop)
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RandomDetector::RandomDetector(G4double prop)
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: levels_(0),
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perLevel_(0),
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overlapProp_(prop),
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worldDim_(10.*m)
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{
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}
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RandomDetector::~RandomDetector()
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{
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}
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G4VPhysicalVolume * RandomDetector::Construct()
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{
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// Material: only one for all volumes ...
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G4double density = 1.390*g/cm3;
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G4double a = 39.95*g/mole;
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G4Material* lAr = new G4Material("liquidArgon", 18., a, density);
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// world volume
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G4double halfDim = worldDim_/2.;
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G4Box * aWorldBox = new G4Box("WorldBox", halfDim, halfDim, halfDim);
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G4LogicalVolume * aWorldLV = new G4LogicalVolume(aWorldBox, lAr, "WorldLV");
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// 2 daughters, overlapping with prop. p (protruding parent or each other)
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// G4double outer = sqrt(3.*halfDim*halfDim);
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G4double inner = halfDim;
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G4double childDim = halfDim/3.;
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G4double childRad = std::sqrt(3.*childDim*childDim);
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G4Box * aChildBox = new G4Box("ChildBox", childDim, childDim, childDim);
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G4LogicalVolume * child1 = new G4LogicalVolume(aChildBox, lAr, "Child_1_LV");
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G4LogicalVolume * child2 = new G4LogicalVolume(aChildBox, lAr, "Child_2_LV");
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G4bool parentOverlap = G4UniformRand() < overlapProp_ ? true : false;
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G4bool childOverlap = G4UniformRand() < overlapProp_ ? true : false;
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G4ThreeVector ax1(1.,1.,1.);
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G4RotationMatrix * rm1 = new G4RotationMatrix(ax1,30.*deg);
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G4ThreeVector ax2(0.2,-1.,0.45);
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G4RotationMatrix * rm2 = new G4RotationMatrix(ax2,70.*deg);
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G4double t1 = G4UniformRand()*180.*deg;
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G4double p1 = G4UniformRand()*360.*deg;
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G4double t2 = G4UniformRand()*180.*deg;
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G4double p2 = G4UniformRand()*360.*deg;
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G4double r1, r2;
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if (parentOverlap)
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{
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r1 = inner - childRad/3.;
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}
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else
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{
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r1 = inner - childRad - childRad/5.;
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}
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r2 = inner - childRad - childRad/5.;
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if (childOverlap)
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{
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t2 = t1;
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p2 = p1;
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}
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G4ThreeVector tr1( r1*std::cos(p1)*std::sin(t1), r1*std::sin(p1)*std::sin(t1), r1*std::cos(t1));
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G4ThreeVector tr2( r2*std::cos(p2)*std::sin(t2), r2*std::sin(p2)*std::sin(t2), r2*std::cos(t2));
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new G4PVPlacement(rm1,tr1,child1,"Child_1",aWorldLV,false,1);
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new G4PVPlacement(rm2,tr2,child2,"Child_2",aWorldLV,false,2);
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return new G4PVPlacement(0,G4ThreeVector(),aWorldLV,"Random",0,false,1);
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}
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