Gabriele Cosmo
121 lines
4.1 KiB
C++
121 lines
4.1 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: RandomDetector.cc,v 1.1 2002/06/04 07:40:23 gcosmo Exp $
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// GEANT4 tag $Name: geant4-04-01 $
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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 "SystemOfUnits.h"
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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 = 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*cos(p1)*sin(t1), r1*sin(p1)*sin(t1), r1*cos(t1));
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G4ThreeVector tr2( r2*cos(p2)*sin(t2), r2*sin(p2)*sin(t2), r2*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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