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Geant4/processes/electromagnetic/xrays/src/G4GammaXTRadiator.cc

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Differences between /processes/electromagnetic/xrays/src/G4GammaXTRadiator.cc (Version 11.3.0) and /processes/electromagnetic/xrays/src/G4GammaXTRadiator.cc (Version 8.1.p2)


  1 //                                                  1 //
  2 // *******************************************      2 // ********************************************************************
  3 // * License and Disclaimer                         3 // * License and Disclaimer                                           *
  4 // *                                                4 // *                                                                  *
  5 // * The  Geant4 software  is  copyright of th      5 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
  6 // * the Geant4 Collaboration.  It is provided      6 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
  7 // * conditions of the Geant4 Software License      7 // * conditions of the Geant4 Software License,  included in the file *
  8 // * LICENSE and available at  http://cern.ch/      8 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
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 10 // *                                               10 // *                                                                  *
 11 // * Neither the authors of this software syst     11 // * Neither the authors of this software system, nor their employing *
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 13 // * work  make  any representation or  warran     13 // * work  make  any representation or  warranty, express or implied, *
 14 // * regarding  this  software system or assum     14 // * regarding  this  software system or assume any liability for its *
 15 // * use.  Please see the license in the file      15 // * use.  Please see the license in the file  LICENSE  and URL above *
 16 // * for the full disclaimer and the limitatio     16 // * for the full disclaimer and the limitation of liability.         *
 17 // *                                               17 // *                                                                  *
 18 // * This  code  implementation is the result      18 // * This  code  implementation is the result of  the  scientific and *
 19 // * technical work of the GEANT4 collaboratio     19 // * technical work of the GEANT4 collaboration.                      *
 20 // * By using,  copying,  modifying or  distri     20 // * By using,  copying,  modifying or  distributing the software (or *
 21 // * any work based  on the software)  you  ag     21 // * any work based  on the software)  you  agree  to acknowledge its *
 22 // * use  in  resulting  scientific  publicati     22 // * use  in  resulting  scientific  publications,  and indicate your *
 23 // * acceptance of all terms of the Geant4 Sof     23 // * acceptance of all terms of the Geant4 Software license.          *
 24 // *******************************************     24 // ********************************************************************
 25 //                                                 25 //
                                                   >>  26 //
                                                   >>  27 // $Id: G4GammaXTRadiator.cc,v 1.5 2006/06/29 19:56:07 gunter Exp $
                                                   >>  28 // GEANT4 tag $Name: geant4-08-01-patch-01 $
                                                   >>  29 //
                                                   >>  30 
                                                   >>  31 #include <complex>
 26                                                    32 
 27 #include "G4GammaXTRadiator.hh"                    33 #include "G4GammaXTRadiator.hh"
                                                   >>  34 #include "Randomize.hh"
 28                                                    35 
 29 #include "G4Gamma.hh"                              36 #include "G4Gamma.hh"
 30                                                    37 
                                                   >>  38 using namespace std;
                                                   >>  39 
 31 //////////////////////////////////////////////     40 ////////////////////////////////////////////////////////////////////////////
                                                   >>  41 //
 32 // Constructor, destructor                         42 // Constructor, destructor
 33 G4GammaXTRadiator::G4GammaXTRadiator(G4Logical <<  43 
 34                                      G4double  <<  44 G4GammaXTRadiator::G4GammaXTRadiator(G4LogicalVolume* anEnvelope, 
 35                                      G4Materia <<  45              G4double alphaPlate,
                                                   >>  46              G4double alphaGas,
                                                   >>  47                                      G4Material* foilMat,G4Material* gasMat, 
 36                                      G4double      48                                      G4double a, G4double b, G4int n,
 37                                      const G4S <<  49                                      const G4String& processName) :
 38   : G4VXTRenergyLoss(anEnvelope, foilMat, gasM <<  50   G4VXTRenergyLoss(anEnvelope,foilMat,gasMat,a,b,n,processName)
 39 {                                                  51 {
 40   G4cout << "Gamma distributed X-ray TR radiat <<  52   G4cout<<"Gammma distributed X-ray TR radiator model is called"<<G4endl ;
 41                                                    53 
 42   // Build energy and angular integral spectra     54   // Build energy and angular integral spectra of X-ray TR photons from
 43   // a radiator                                    55   // a radiator
 44                                                    56 
 45   fAlphaPlate = alphaPlate;                    <<  57   fAlphaPlate = alphaPlate ;
 46   fAlphaGas   = alphaGas;                      <<  58   fAlphaGas   = alphaGas   ;
 47   G4cout << "fAlphaPlate = " << fAlphaPlate << <<  59   G4cout<<"fAlphaPlate = "<<fAlphaPlate<<" ; fAlphaGas = "<<fAlphaGas<<G4endl ;
 48          << G4endl;                            <<  60 
                                                   >>  61   // BuildTable() ;
 49 }                                                  62 }
 50                                                    63 
 51 //////////////////////////////////////////////     64 ///////////////////////////////////////////////////////////////////////////
 52 G4GammaXTRadiator::~G4GammaXTRadiator() = defa << 
 53                                                    65 
 54 void G4GammaXTRadiator::ProcessDescription(std <<  66 G4GammaXTRadiator::~G4GammaXTRadiator()
 55 {                                                  67 {
 56   out                                          <<  68   ;
 57     << "Rough approximation describing a radia << 
 58        "radiation.\n"                          << 
 59        "Thicknesses of plates and gas gaps are << 
 60        "description.\n";                       << 
 61 }                                                  69 }
 62                                                    70 
                                                   >>  71 
                                                   >>  72 
 63 //////////////////////////////////////////////     73 ///////////////////////////////////////////////////////////////////////////
                                                   >>  74 //
 64 // Rough approximation for radiator interferen     75 // Rough approximation for radiator interference factor for the case of
 65 // fully GamDistr radiator. The plate and gas  <<  76 // fully GamDistr radiator. The plate and gas gap thicknesses are distributed 
 66 // according to exponent. The mean values of t <<  77 // according to exponent. The mean values of the plate and gas gap thicknesses 
 67 // are supposed to be about XTR formation zone <<  78 // are supposed to be about XTR formation zones but much less than 
 68 // mean absorption length of XTR photons in co <<  79 // mean absorption length of XTR photons in coresponding material.
 69 G4double G4GammaXTRadiator::GetStackFactor(G4d <<  80 
 70                                            G4d <<  81 G4double 
                                                   >>  82 G4GammaXTRadiator::GetStackFactor( G4double energy, 
                                                   >>  83                                          G4double gamma, G4double varAngle )
 71 {                                                  84 {
 72   G4double result, Za, Zb, Ma, Mb;             <<  85   G4double result, Za, Zb, Ma, Mb ;
 73                                                <<  86   
 74   Za = GetPlateFormationZone(energy, gamma, va <<  87   Za = GetPlateFormationZone(energy,gamma,varAngle) ;
 75   Zb = GetGasFormationZone(energy, gamma, varA <<  88   Zb = GetGasFormationZone(energy,gamma,varAngle) ;
 76                                                    89 
 77   Ma = GetPlateLinearPhotoAbs(energy);         <<  90   Ma = GetPlateLinearPhotoAbs(energy) ;
 78   Mb = GetGasLinearPhotoAbs(energy);           <<  91   Mb = GetGasLinearPhotoAbs(energy) ;
 79                                                    92 
 80   G4complex Ca(1.0 + 0.5 * fPlateThick * Ma /  << 
 81                fPlateThick / Za / fAlphaPlate) << 
 82   G4complex Cb(1.0 + 0.5 * fGasThick * Mb / fA << 
 83                fGasThick / Zb / fAlphaGas);    << 
 84                                                    93 
 85   G4complex Ha = std::pow(Ca, -fAlphaPlate);   <<  94   G4complex Ca(1.0+0.5*fPlateThick*Ma/fAlphaPlate,fPlateThick/Za/fAlphaPlate) ; 
 86   G4complex Hb = std::pow(Cb, -fAlphaGas);     <<  95   G4complex Cb(1.0+0.5*fGasThick*Mb/fAlphaGas,fGasThick/Zb/fAlphaGas) ; 
 87   G4complex H  = Ha * Hb;                      << 
 88                                                    96 
 89   G4complex F1 = (1.0 - Ha) * (1.0 - Hb) / (1. <<  97   G4complex Ha = pow(Ca,-fAlphaPlate) ;  
                                                   >>  98   G4complex Hb = pow(Cb,-fAlphaGas) ;
                                                   >>  99   G4complex H  = Ha*Hb ;
 90                                                   100 
 91   G4complex F2 = (1.0 - Ha) * (1.0 - Ha) * Hb  << 101   G4complex F1 =   (1.0 - Ha)*(1.0 - Hb )/(1.0 - H)
 92                  (1.0 - std::pow(H, fPlateNumb << 102                  * G4double(fPlateNumber) ;
 93                                                   103 
 94   G4complex R = (F1 + F2) * OneInterfaceXTRdEd << 104   G4complex F2 =   (1.0-Ha)*(1.0-Ha)*Hb/(1.0-H)/(1.0-H)
                                                   >> 105                  * (1.0 - pow(H,fPlateNumber)) ;
 95                                                   106 
 96   result = 2.0 * std::real(R);                 << 107   G4complex R  = (F1 + F2)*OneInterfaceXTRdEdx(energy,gamma,varAngle) ;
 97                                                   108 
 98   return result;                               << 109   result       = 2.0*real(R) ;
                                                   >> 110   
                                                   >> 111   return      result ;
 99 }                                                 112 }
                                                   >> 113 
                                                   >> 114 
                                                   >> 115 //
                                                   >> 116 //
                                                   >> 117 ////////////////////////////////////////////////////////////////////////////
                                                   >> 118 
                                                   >> 119 
                                                   >> 120 
                                                   >> 121 
                                                   >> 122 
                                                   >> 123 
                                                   >> 124 
                                                   >> 125 
100                                                   126