[1197] | 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 | // $Id: G4AdjointPosOnPhysVolGenerator.hh,v 1.2 2009/11/18 17:57:59 gcosmo Exp $ |
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| 27 | // GEANT4 tag $Name: geant4-09-03-cand-01 $ |
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| 28 | // |
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| 29 | ///////////////////////////////////////////////////////////////////////////////// |
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| 30 | // Class Name: G4AdjointPosOnPhysVolGenerator |
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| 31 | // Author: L. Desorgher |
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| 32 | // Organisation: SpaceIT GmbH |
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| 33 | // Contract: ESA contract 21435/08/NL/AT |
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| 34 | // Customer: ESA/ESTEC |
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| 35 | ///////////////////////////////////////////////////////////////////////////////// |
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| 36 | // |
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| 37 | // CHANGE HISTORY |
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| 38 | // -------------- |
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| 39 | // ChangeHistory: |
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| 40 | // 1st June 2006 creation by L. Desorgher |
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| 41 | // |
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| 42 | //------------------------------------------------------------- |
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| 43 | // Documentation: |
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| 44 | // This class is responsible for the generation of primary adjoint particle on the external surface of a user selected volume. |
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| 45 | // The particle are generated uniformly on the surface with the angular distribution set to a cosine law relative to normal of the surface. |
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| 46 | // It is equivalent to the flux going in from the surface if an isotropic flux is considered outside. |
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| 47 | // It uses ray tracking technique and can be applied to all kind of convex volume. Uisng the ray tracking technique the area |
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| 48 | // of the external surface is also computed. The area is needed to fix the weight of the primary adjoint particle. |
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| 49 | // At the time of the development of this class, generation of particle on volume surface and computation of surface was limited in G4, |
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| 50 | // therfore the general ray tracking technique was adopted. It could be now (2009) that direct method of G4VSolid could be used instead. To be checked! |
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| 51 | // |
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| 52 | // |
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| 53 | // |
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| 54 | #ifndef G4AdjointPosOnPhysVolGenerator_h |
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| 55 | #define G4AdjointPosOnPhysVolGenerator_h 1 |
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| 56 | |
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| 57 | #include "G4VPhysicalVolume.hh" |
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| 58 | #include "G4AffineTransform.hh" |
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| 59 | #include "G4ThreeVector.hh" |
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| 60 | |
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| 61 | class G4VSolid; |
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| 62 | |
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| 63 | class G4AdjointPosOnPhysVolGenerator |
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| 64 | /////////////////////// |
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| 65 | { |
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| 66 | |
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| 67 | //-------- |
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| 68 | public: //without description |
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| 69 | //-------- |
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| 70 | |
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| 71 | static G4AdjointPosOnPhysVolGenerator* GetInstance(); |
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| 72 | |
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| 73 | //-------- |
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| 74 | public: //public methods |
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| 75 | //-------- |
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| 76 | G4VPhysicalVolume* DefinePhysicalVolume(const G4String& aName); |
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| 77 | void DefinePhysicalVolume1(const G4String& aName); |
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| 78 | G4double ComputeAreaOfExtSurface(); |
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| 79 | G4double ComputeAreaOfExtSurface(G4int NStat); |
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| 80 | G4double ComputeAreaOfExtSurface(G4double epsilon); |
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| 81 | G4double ComputeAreaOfExtSurface(G4VSolid* aSolid); |
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| 82 | G4double ComputeAreaOfExtSurface(G4VSolid* aSolid,G4int NStat); |
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| 83 | G4double ComputeAreaOfExtSurface(G4VSolid* aSolid,G4double epsilon); |
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| 84 | |
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| 85 | void GenerateAPositionOnTheExtSurfaceOfASolid(G4VSolid* aSolid,G4ThreeVector& p, G4ThreeVector& direction); |
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| 86 | void GenerateAPositionOnTheExtSurfaceOfTheSolid(G4ThreeVector& p, G4ThreeVector& direction); |
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| 87 | void GenerateAPositionOnTheExtSurfaceOfThePhysicalVolume(G4ThreeVector& p, G4ThreeVector& direction); |
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| 88 | void GenerateAPositionOnTheExtSurfaceOfThePhysicalVolume(G4ThreeVector& p, G4ThreeVector& direction, |
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| 89 | G4double& costh_to_normal); |
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| 90 | |
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| 91 | //inline public methods |
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| 92 | |
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| 93 | inline void SetSolid(G4VSolid* aSolid){theSolid=aSolid;} |
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| 94 | inline G4double GetAreaOfExtSurfaceOfThePhysicalVolume(){return AreaOfExtSurfaceOfThePhysicalVolume;} |
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| 95 | inline G4double GetCosThDirComparedToNormal(){return CosThDirComparedToNormal;} |
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| 96 | |
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| 97 | //--------- |
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| 98 | private: //private methods |
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| 99 | //--------- |
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| 100 | G4AdjointPosOnPhysVolGenerator(); |
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| 101 | ~G4AdjointPosOnPhysVolGenerator(); |
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| 102 | G4double ComputeAreaOfExtSurfaceStartingFromSphere(G4VSolid* aSolid,G4int NStat); |
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| 103 | G4double ComputeAreaOfExtSurfaceStartingFromBox(G4VSolid* aSolid,G4int NStat); |
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| 104 | void GenerateAPositionOnASolidBoundary(G4VSolid* aSolid,G4ThreeVector& p, G4ThreeVector& direction); |
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| 105 | G4double GenerateAPositionOnASphereBoundary(G4VSolid* aSolid,G4ThreeVector& p, G4ThreeVector& direction); |
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| 106 | G4double GenerateAPositionOnABoxBoundary(G4VSolid* aSolid,G4ThreeVector& p, G4ThreeVector& direction); |
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| 107 | void ComputeTransformationFromPhysVolToWorld(); |
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| 108 | |
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| 109 | //--------- |
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| 110 | private: //attributes |
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| 111 | //--------- |
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| 112 | static G4AdjointPosOnPhysVolGenerator* theInstance; |
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| 113 | G4VSolid* theSolid; |
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| 114 | G4VPhysicalVolume* thePhysicalVolume; |
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| 115 | G4int NStat; |
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| 116 | G4double epsilon; |
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| 117 | G4bool UseSphere; |
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| 118 | G4String ModelOfSurfaceSource; |
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| 119 | G4double ExtSourceRadius; |
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| 120 | G4double ExtSourceDx,ExtSourceDy,ExtSourceDz ; |
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| 121 | G4AffineTransform theTransformationFromPhysVolToWorld; |
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| 122 | G4double AreaOfExtSurfaceOfThePhysicalVolume; |
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| 123 | G4double CosThDirComparedToNormal; |
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| 124 | }; |
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| 125 | |
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| 126 | #endif |
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| 127 | |
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