| [807] | 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | //
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| 27 | // $Id: RandomDetector.cc,v 1.5 2006/06/29 17:23:16 gunter Exp $
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| 28 | // GEANT4 tag $Name: $
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| 29 | //
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| 30 | //
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| 31 | // --------------------------------------------------------------
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| 32 | // RandomDetector
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| 33 | //
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| 34 | // Author: Martin Liendl - Martin.Liendl@cern.ch
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| 35 | //
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| 36 | // --------------------------------------------------------------
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| 37 | //
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| 38 | #include "globals.hh"
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| 39 | #include "Randomize.hh"
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| 40 | #include "G4PVPlacement.hh"
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| 41 | #include "G4LogicalVolume.hh"
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| 42 | #include "G4Box.hh"
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| 43 | #include "G4Material.hh"
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| 44 |
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| 45 | #include "RandomDetector.hh"
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| 46 |
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| 47 | //RandomDetector::RandomDetector(G4int levels, G4int perLevel, G4double prop)
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| 48 |
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| 49 | RandomDetector::RandomDetector(G4double prop)
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| 50 | : levels_(0),
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| 51 | perLevel_(0),
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| 52 | overlapProp_(prop),
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| 53 | worldDim_(10.*m)
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| 54 | {
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| 55 | }
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| 56 |
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| 57 |
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| 58 | RandomDetector::~RandomDetector()
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| 59 | {
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| 60 | }
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| 61 |
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| 62 |
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| 63 | G4VPhysicalVolume * RandomDetector::Construct()
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| 64 | {
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| 65 | // Material: only one for all volumes ...
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| 66 | G4double density = 1.390*g/cm3;
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| 67 | G4double a = 39.95*g/mole;
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| 68 | G4Material* lAr = new G4Material("liquidArgon", 18., a, density);
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| 69 |
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| 70 | // world volume
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| 71 | G4double halfDim = worldDim_/2.;
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| 72 | G4Box * aWorldBox = new G4Box("WorldBox", halfDim, halfDim, halfDim);
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| 73 | G4LogicalVolume * aWorldLV = new G4LogicalVolume(aWorldBox, lAr, "WorldLV");
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| 74 |
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| 75 | // 2 daughters, overlapping with prop. p (protruding parent or each other)
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| 76 | // G4double outer = sqrt(3.*halfDim*halfDim);
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| 77 | G4double inner = halfDim;
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| 78 | G4double childDim = halfDim/3.;
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| 79 | G4double childRad = std::sqrt(3.*childDim*childDim);
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| 80 | G4Box * aChildBox = new G4Box("ChildBox", childDim, childDim, childDim);
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| 81 | G4LogicalVolume * child1 = new G4LogicalVolume(aChildBox, lAr, "Child_1_LV");
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| 82 | G4LogicalVolume * child2 = new G4LogicalVolume(aChildBox, lAr, "Child_2_LV");
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| 83 |
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| 84 | G4bool parentOverlap = G4UniformRand() < overlapProp_ ? true : false;
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| 85 | G4bool childOverlap = G4UniformRand() < overlapProp_ ? true : false;
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| 86 |
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| 87 | G4ThreeVector ax1(1.,1.,1.);
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| 88 | G4RotationMatrix * rm1 = new G4RotationMatrix(ax1,30.*deg);
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| 89 | G4ThreeVector ax2(0.2,-1.,0.45);
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| 90 | G4RotationMatrix * rm2 = new G4RotationMatrix(ax2,70.*deg);
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| 91 |
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| 92 | G4double t1 = G4UniformRand()*180.*deg;
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| 93 | G4double p1 = G4UniformRand()*360.*deg;
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| 94 | G4double t2 = G4UniformRand()*180.*deg;
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| 95 | G4double p2 = G4UniformRand()*360.*deg;
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| 96 | G4double r1, r2;
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| 97 |
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| 98 | if (parentOverlap)
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| 99 | {
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| 100 | r1 = inner - childRad/3.;
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| 101 | }
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| 102 | else
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| 103 | {
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| 104 | r1 = inner - childRad - childRad/5.;
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| 105 | }
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| 106 |
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| 107 | r2 = inner - childRad - childRad/5.;
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| 108 |
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| 109 | if (childOverlap)
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| 110 | {
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| 111 | t2 = t1;
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| 112 | p2 = p1;
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| 113 | }
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| 114 |
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| 115 | G4ThreeVector tr1( r1*std::cos(p1)*std::sin(t1), r1*std::sin(p1)*std::sin(t1), r1*std::cos(t1));
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| 116 | G4ThreeVector tr2( r2*std::cos(p2)*std::sin(t2), r2*std::sin(p2)*std::sin(t2), r2*std::cos(t2));
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| 117 |
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| 118 | new G4PVPlacement(rm1,tr1,child1,"Child_1",aWorldLV,false,1);
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| 119 | new G4PVPlacement(rm2,tr2,child2,"Child_2",aWorldLV,false,2);
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| 120 | return new G4PVPlacement(0,G4ThreeVector(),aWorldLV,"Random",0,false,1);
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| 121 | }
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| 122 |
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