648 lines
21 KiB
C++
648 lines
21 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: G4SynchrotronRadiationInMat.cc,v 1.2 2006/06/29 19:56:17 gunter Exp $
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// GEANT4 tag $Name: geant4-08-01 $
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//
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// --------------------------------------------------------------
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// GEANT 4 class implementation file
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// CERN Geneva Switzerland
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//
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// History: first implementation,
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// 21-5-98 V.Grichine
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// 28-05-01, V.Ivanchenko minor changes to provide ANSI -wall compilation
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// 04.03.05, V.Grichine: get local field interface
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// 19-05-06, V.Ivanchenko rename from G4SynchrotronRadiation
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//
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//
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///////////////////////////////////////////////////////////////////////////
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#include "G4SynchrotronRadiationInMat.hh"
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#include "G4Integrator.hh"
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using namespace std;
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////////////////////////////////////////////////////////////////////
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//
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// Constant for calculation of mean free path
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//
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const G4double
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G4SynchrotronRadiationInMat::fLambdaConst = sqrt(3.0)*electron_mass_c2/
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(2.5*fine_structure_const*eplus*c_light) ;
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/////////////////////////////////////////////////////////////////////
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//
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// Constant for calculation of characterictic energy
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//
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const G4double
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G4SynchrotronRadiationInMat::fEnergyConst = 1.5*c_light*c_light*eplus*hbar_Planck/
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electron_mass_c2 ;
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////////////////////////////////////////////////////////////////////
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//
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// Array of integral probability of synchrotron photons:
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//
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// the corresponding energy = 0.0001*i*i*(characteristic energy)
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//
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const G4double
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G4SynchrotronRadiationInMat::fIntegralProbabilityOfSR[200] =
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{
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1.000000e+00, 9.428859e-01, 9.094095e-01, 8.813971e-01, 8.565154e-01,
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8.337008e-01, 8.124961e-01, 7.925217e-01, 7.735517e-01, 7.554561e-01,
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7.381233e-01, 7.214521e-01, 7.053634e-01, 6.898006e-01, 6.747219e-01,
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6.600922e-01, 6.458793e-01, 6.320533e-01, 6.185872e-01, 6.054579e-01,
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5.926459e-01, 5.801347e-01, 5.679103e-01, 5.559604e-01, 5.442736e-01,
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5.328395e-01, 5.216482e-01, 5.106904e-01, 4.999575e-01, 4.894415e-01,
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4.791351e-01, 4.690316e-01, 4.591249e-01, 4.494094e-01, 4.398800e-01,
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4.305320e-01, 4.213608e-01, 4.123623e-01, 4.035325e-01, 3.948676e-01,
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3.863639e-01, 3.780179e-01, 3.698262e-01, 3.617858e-01, 3.538933e-01,
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3.461460e-01, 3.385411e-01, 3.310757e-01, 3.237474e-01, 3.165536e-01,
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3.094921e-01, 3.025605e-01, 2.957566e-01, 2.890784e-01, 2.825237e-01,
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2.760907e-01, 2.697773e-01, 2.635817e-01, 2.575020e-01, 2.515365e-01,
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2.456834e-01, 2.399409e-01, 2.343074e-01, 2.287812e-01, 2.233607e-01,
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2.180442e-01, 2.128303e-01, 2.077174e-01, 2.027040e-01, 1.977885e-01,
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1.929696e-01, 1.882457e-01, 1.836155e-01, 1.790775e-01, 1.746305e-01,
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1.702730e-01, 1.660036e-01, 1.618212e-01, 1.577243e-01, 1.537117e-01,
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1.497822e-01, 1.459344e-01, 1.421671e-01, 1.384791e-01, 1.348691e-01,
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1.313360e-01, 1.278785e-01, 1.244956e-01, 1.211859e-01, 1.179483e-01,
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1.147818e-01, 1.116850e-01, 1.086570e-01, 1.056966e-01, 1.028026e-01,
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9.997405e-02, 9.720975e-02, 9.450865e-02, 9.186969e-02, 8.929179e-02,
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8.677391e-02, 8.431501e-02, 8.191406e-02, 7.957003e-02, 7.728192e-02,
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7.504872e-02, 7.286944e-02, 7.074311e-02, 6.866874e-02, 6.664538e-02,
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6.467208e-02, 6.274790e-02, 6.087191e-02, 5.904317e-02, 5.726079e-02,
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5.552387e-02, 5.383150e-02, 5.218282e-02, 5.057695e-02, 4.901302e-02,
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4.749020e-02, 4.600763e-02, 4.456450e-02, 4.315997e-02, 4.179325e-02,
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4.046353e-02, 3.917002e-02, 3.791195e-02, 3.668855e-02, 3.549906e-02,
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3.434274e-02, 3.321884e-02, 3.212665e-02, 3.106544e-02, 3.003452e-02,
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2.903319e-02, 2.806076e-02, 2.711656e-02, 2.619993e-02, 2.531021e-02,
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2.444677e-02, 2.360897e-02, 2.279620e-02, 2.200783e-02, 2.124327e-02,
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2.050194e-02, 1.978324e-02, 1.908662e-02, 1.841151e-02, 1.775735e-02,
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1.712363e-02, 1.650979e-02, 1.591533e-02, 1.533973e-02, 1.478250e-02,
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1.424314e-02, 1.372117e-02, 1.321613e-02, 1.272755e-02, 1.225498e-02,
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1.179798e-02, 1.135611e-02, 1.092896e-02, 1.051609e-02, 1.011712e-02,
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9.731635e-03, 9.359254e-03, 8.999595e-03, 8.652287e-03, 8.316967e-03,
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7.993280e-03, 7.680879e-03, 7.379426e-03, 7.088591e-03, 6.808051e-03,
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6.537491e-03, 6.276605e-03, 6.025092e-03, 5.782661e-03, 5.549027e-03,
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5.323912e-03, 5.107045e-03, 4.898164e-03, 4.697011e-03, 4.503336e-03,
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4.316896e-03, 4.137454e-03, 3.964780e-03, 3.798649e-03, 3.638843e-03,
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3.485150e-03, 3.337364e-03, 3.195284e-03, 3.058715e-03, 2.927469e-03,
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2.801361e-03, 2.680213e-03, 2.563852e-03, 2.452110e-03, 2.344824e-03
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};
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///////////////////////////////////////////////////////////////////////
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//
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// Constructor
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//
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G4SynchrotronRadiationInMat::G4SynchrotronRadiationInMat(const G4String& processName,
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G4ProcessType type):G4VDiscreteProcess (processName, type),
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LowestKineticEnergy (10.*keV),
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HighestKineticEnergy (100.*TeV),
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TotBin(200),
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theGamma (G4Gamma::Gamma() ),
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theElectron ( G4Electron::Electron() ),
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thePositron ( G4Positron::Positron() ), fAlpha(0.0), fRootNumber(80),
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fVerboseLevel( verboseLevel )
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{
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G4TransportationManager* transportMgr = G4TransportationManager::GetTransportationManager();
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fFieldPropagator = transportMgr->GetPropagatorInField();
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}
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/////////////////////////////////////////////////////////////////////////
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//
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// Destructor
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//
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G4SynchrotronRadiationInMat::~G4SynchrotronRadiationInMat()
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{
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;
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}
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/////////////////////////////// METHODS /////////////////////////////////
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//
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//
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// Production of synchrotron X-ray photon
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// GEANT4 internal units.
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//
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G4double
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G4SynchrotronRadiationInMat::GetMeanFreePath( const G4Track& trackData,
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G4double,
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G4ForceCondition* condition)
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{
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// gives the MeanFreePath in GEANT4 internal units
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G4double MeanFreePath;
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const G4DynamicParticle* aDynamicParticle = trackData.GetDynamicParticle();
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// G4Material* aMaterial = trackData.GetMaterial();
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//G4bool isOutRange ;
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*condition = NotForced ;
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G4double gamma = aDynamicParticle->GetTotalEnergy()/
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aDynamicParticle->GetMass();
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G4double particleCharge = aDynamicParticle->GetDefinition()->GetPDGCharge();
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G4double KineticEnergy = aDynamicParticle->GetKineticEnergy();
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if ( KineticEnergy < LowestKineticEnergy || gamma < 1.0e3 ) MeanFreePath = DBL_MAX;
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else
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{
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G4ThreeVector FieldValue;
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const G4Field* pField = 0;
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G4FieldManager* fieldMgr=0;
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G4bool fieldExertsForce = false;
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if( (particleCharge != 0.0) )
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{
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fieldMgr = fFieldPropagator->FindAndSetFieldManager( trackData.GetVolume() );
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if ( fieldMgr != 0 )
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{
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// If the field manager has no field, there is no field !
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fieldExertsForce = ( fieldMgr->GetDetectorField() != 0 );
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}
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}
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if ( fieldExertsForce )
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{
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pField = fieldMgr->GetDetectorField() ;
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G4ThreeVector globPosition = trackData.GetPosition();
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G4double globPosVec[3], FieldValueVec[3];
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globPosVec[0] = globPosition.x();
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globPosVec[1] = globPosition.y();
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globPosVec[2] = globPosition.z();
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pField->GetFieldValue( globPosVec, FieldValueVec );
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FieldValue = G4ThreeVector( FieldValueVec[0],
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FieldValueVec[1],
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FieldValueVec[2] );
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G4ThreeVector unitMomentum = aDynamicParticle->GetMomentumDirection();
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G4ThreeVector unitMcrossB = FieldValue.cross(unitMomentum) ;
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G4double perpB = unitMcrossB.mag() ;
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G4double beta = aDynamicParticle->GetTotalMomentum()/
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(aDynamicParticle->GetTotalEnergy() );
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if( perpB > 0.0 ) MeanFreePath = fLambdaConst*beta/perpB;
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else MeanFreePath = DBL_MAX;
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}
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else MeanFreePath = DBL_MAX;
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}
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if(fVerboseLevel > 0)
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{
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G4cout<<"G4SynchrotronRadiationInMat::MeanFreePath = "<<MeanFreePath/m<<" m"<<G4endl;
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}
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return MeanFreePath;
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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G4VParticleChange*
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G4SynchrotronRadiationInMat::PostStepDoIt(const G4Track& trackData,
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const G4Step& stepData )
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{
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aParticleChange.Initialize(trackData);
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const G4DynamicParticle* aDynamicParticle=trackData.GetDynamicParticle();
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G4double gamma = aDynamicParticle->GetTotalEnergy()/
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(aDynamicParticle->GetMass() );
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if(gamma <= 1.0e3 )
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{
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return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
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}
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G4double particleCharge = aDynamicParticle->GetDefinition()->GetPDGCharge();
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G4ThreeVector FieldValue;
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const G4Field* pField = 0 ;
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G4FieldManager* fieldMgr=0;
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G4bool fieldExertsForce = false;
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if( (particleCharge != 0.0) )
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{
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fieldMgr = fFieldPropagator->FindAndSetFieldManager( trackData.GetVolume() );
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if ( fieldMgr != 0 )
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{
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// If the field manager has no field, there is no field !
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fieldExertsForce = ( fieldMgr->GetDetectorField() != 0 );
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}
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}
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if ( fieldExertsForce )
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{
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pField = fieldMgr->GetDetectorField() ;
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G4ThreeVector globPosition = trackData.GetPosition() ;
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G4double globPosVec[3], FieldValueVec[3] ;
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globPosVec[0] = globPosition.x() ;
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globPosVec[1] = globPosition.y() ;
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globPosVec[2] = globPosition.z() ;
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pField->GetFieldValue( globPosVec, FieldValueVec ) ;
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FieldValue = G4ThreeVector( FieldValueVec[0],
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FieldValueVec[1],
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FieldValueVec[2] );
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G4ThreeVector unitMomentum = aDynamicParticle->GetMomentumDirection();
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G4ThreeVector unitMcrossB = FieldValue.cross(unitMomentum);
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G4double perpB = unitMcrossB.mag() ;
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if(perpB > 0.0)
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{
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// M-C of synchrotron photon energy
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G4double energyOfSR = GetRandomEnergySR(gamma,perpB);
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if(fVerboseLevel > 0)
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{
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G4cout<<"SR photon energy = "<<energyOfSR/keV<<" keV"<<G4endl;
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}
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// check against insufficient energy
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if( energyOfSR <= 0.0 )
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{
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return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
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}
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G4double kineticEnergy = aDynamicParticle->GetKineticEnergy();
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G4ParticleMomentum
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particleDirection = aDynamicParticle->GetMomentumDirection();
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// M-C of its direction
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G4double Teta = G4UniformRand()/gamma ; // Very roughly
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G4double Phi = twopi * G4UniformRand() ;
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G4double dirx = sin(Teta)*cos(Phi) ,
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diry = sin(Teta)*sin(Phi) ,
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dirz = cos(Teta) ;
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G4ThreeVector gammaDirection ( dirx, diry, dirz);
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gammaDirection.rotateUz(particleDirection);
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// polarization of new gamma
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// G4double sx = cos(Teta)*cos(Phi);
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// G4double sy = cos(Teta)*sin(Phi);
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// G4double sz = -sin(Teta);
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G4ThreeVector gammaPolarization = FieldValue.cross(gammaDirection);
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gammaPolarization = gammaPolarization.unit();
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// (sx, sy, sz);
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// gammaPolarization.rotateUz(particleDirection);
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// create G4DynamicParticle object for the SR photon
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G4DynamicParticle* aGamma= new G4DynamicParticle ( G4Gamma::Gamma(),
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gammaDirection,
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energyOfSR );
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aGamma->SetPolarization( gammaPolarization.x(),
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gammaPolarization.y(),
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gammaPolarization.z() );
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aParticleChange.SetNumberOfSecondaries(1);
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aParticleChange.AddSecondary(aGamma);
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// Update the incident particle
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G4double newKinEnergy = kineticEnergy - energyOfSR ;
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if (newKinEnergy > 0.)
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{
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aParticleChange.ProposeMomentumDirection( particleDirection );
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aParticleChange.ProposeEnergy( newKinEnergy );
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aParticleChange.ProposeLocalEnergyDeposit (0.);
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}
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else
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{
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aParticleChange.ProposeEnergy( 0. );
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aParticleChange.ProposeLocalEnergyDeposit (0.);
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G4double charge = aDynamicParticle->GetDefinition()->GetPDGCharge();
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if (charge<0.)
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{
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aParticleChange.ProposeTrackStatus(fStopAndKill) ;
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}
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else
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{
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aParticleChange.ProposeTrackStatus(fStopButAlive) ;
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}
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}
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}
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else
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{
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return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
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}
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}
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return G4VDiscreteProcess::PostStepDoIt(trackData,stepData);
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}
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G4double
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G4SynchrotronRadiationInMat::GetPhotonEnergy( const G4Track& trackData,
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const G4Step& )
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{
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G4int i ;
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G4double energyOfSR = -1.0 ;
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//G4Material* aMaterial=trackData.GetMaterial() ;
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const G4DynamicParticle* aDynamicParticle=trackData.GetDynamicParticle();
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G4double gamma = aDynamicParticle->GetTotalEnergy()/
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(aDynamicParticle->GetMass() ) ;
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G4double particleCharge = aDynamicParticle->GetDefinition()->GetPDGCharge();
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G4ThreeVector FieldValue;
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const G4Field* pField = 0 ;
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G4FieldManager* fieldMgr=0;
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G4bool fieldExertsForce = false;
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if( (particleCharge != 0.0) )
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{
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fieldMgr = fFieldPropagator->FindAndSetFieldManager( trackData.GetVolume() );
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if ( fieldMgr != 0 )
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{
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// If the field manager has no field, there is no field !
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fieldExertsForce = ( fieldMgr->GetDetectorField() != 0 );
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}
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}
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if ( fieldExertsForce )
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{
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pField = fieldMgr->GetDetectorField();
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G4ThreeVector globPosition = trackData.GetPosition();
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G4double globPosVec[3], FieldValueVec[3];
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globPosVec[0] = globPosition.x();
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globPosVec[1] = globPosition.y();
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globPosVec[2] = globPosition.z();
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pField->GetFieldValue( globPosVec, FieldValueVec );
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FieldValue = G4ThreeVector( FieldValueVec[0],
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FieldValueVec[1],
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FieldValueVec[2] );
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G4ThreeVector unitMomentum = aDynamicParticle->GetMomentumDirection();
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G4ThreeVector unitMcrossB = FieldValue.cross(unitMomentum) ;
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G4double perpB = unitMcrossB.mag();
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if( perpB > 0.0 )
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{
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// M-C of synchrotron photon energy
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G4double random = G4UniformRand() ;
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for(i=0;i<200;i++)
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{
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if(random >= fIntegralProbabilityOfSR[i]) break ;
|
|
}
|
|
energyOfSR = 0.0001*i*i*fEnergyConst*gamma*gamma*perpB ;
|
|
|
|
// check against insufficient energy
|
|
|
|
if(energyOfSR <= 0.0)
|
|
{
|
|
return -1.0 ;
|
|
}
|
|
//G4double kineticEnergy = aDynamicParticle->GetKineticEnergy();
|
|
//G4ParticleMomentum
|
|
//particleDirection = aDynamicParticle->GetMomentumDirection();
|
|
|
|
// Gamma production cut in this material
|
|
//G4double
|
|
//gammaEnergyCut = (G4Gamma::GetCutsInEnergy())[aMaterial->GetIndex()];
|
|
|
|
// SR photon has energy more than the current material cut
|
|
// M-C of its direction
|
|
|
|
//G4double Teta = G4UniformRand()/gamma ; // Very roughly
|
|
|
|
//G4double Phi = twopi * G4UniformRand() ;
|
|
}
|
|
else
|
|
{
|
|
return -1.0 ;
|
|
}
|
|
}
|
|
return energyOfSR ;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
//
|
|
|
|
G4double G4SynchrotronRadiationInMat::GetRandomEnergySR(G4double gamma, G4double perpB)
|
|
{
|
|
G4int i, iMax;
|
|
G4double energySR, random, position;
|
|
|
|
iMax = 200;
|
|
random = G4UniformRand();
|
|
|
|
for( i = 0; i < iMax; i++ )
|
|
{
|
|
if( random >= fIntegralProbabilityOfSR[i] ) break;
|
|
}
|
|
if(i <= 0 ) position = G4UniformRand(); // 0.
|
|
else if( i>= iMax) position = G4double(iMax);
|
|
else position = i + G4UniformRand(); // -1
|
|
//
|
|
// it was in initial implementation:
|
|
// energyOfSR = 0.0001*i*i*fEnergyConst*gamma*gamma*perpB ;
|
|
|
|
energySR = 0.0001*position*position*fEnergyConst*gamma*gamma*perpB;
|
|
|
|
if( energySR < 0. ) energySR = 0.;
|
|
|
|
return energySR;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// return
|
|
|
|
G4double G4SynchrotronRadiationInMat::GetProbSpectrumSRforInt( G4double t)
|
|
{
|
|
G4double result, hypCos2, hypCos=std::cosh(t);
|
|
|
|
hypCos2 = hypCos*hypCos;
|
|
result = std::cosh(5.*t/3.)*std::exp(t-fKsi*hypCos); // fKsi > 0. !
|
|
result /= hypCos2;
|
|
return result;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// return the probability to emit SR photon with relative energy
|
|
// energy/energy_c >= ksi
|
|
// for ksi <= 0. P = 1., however the method works for ksi > 0 only!
|
|
|
|
G4double G4SynchrotronRadiationInMat::GetIntProbSR( G4double ksi)
|
|
{
|
|
if (ksi <= 0.) return 1.0;
|
|
fKsi = ksi; // should be > 0. !
|
|
G4int n;
|
|
G4double result, a;
|
|
|
|
a = fAlpha; // always = 0.
|
|
n = fRootNumber; // around default = 80
|
|
|
|
G4Integrator<G4SynchrotronRadiationInMat, G4double(G4SynchrotronRadiationInMat::*)(G4double)> integral;
|
|
|
|
result = integral.Laguerre(this,
|
|
&G4SynchrotronRadiationInMat::GetProbSpectrumSRforInt, a, n);
|
|
|
|
result *= 3./5./pi;
|
|
|
|
return result;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// return an auxiliary function for K_5/3 integral representation
|
|
|
|
G4double G4SynchrotronRadiationInMat::GetProbSpectrumSRforEnergy( G4double t)
|
|
{
|
|
G4double result, hypCos=std::cosh(t);
|
|
|
|
result = std::cosh(5.*t/3.)*std::exp(t - fKsi*hypCos); // fKsi > 0. !
|
|
result /= hypCos;
|
|
return result;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// return the probability to emit SR photon energy with relative energy
|
|
// energy/energy_c >= ksi
|
|
// for ksi <= 0. P = 1., however the method works for ksi > 0 only!
|
|
|
|
G4double G4SynchrotronRadiationInMat::GetEnergyProbSR( G4double ksi)
|
|
{
|
|
if (ksi <= 0.) return 1.0;
|
|
fKsi = ksi; // should be > 0. !
|
|
G4int n;
|
|
G4double result, a;
|
|
|
|
a = fAlpha; // always = 0.
|
|
n = fRootNumber; // around default = 80
|
|
|
|
G4Integrator<G4SynchrotronRadiationInMat, G4double(G4SynchrotronRadiationInMat::*)(G4double)> integral;
|
|
|
|
result = integral.Laguerre(this,
|
|
&G4SynchrotronRadiationInMat::GetProbSpectrumSRforEnergy, a, n);
|
|
|
|
result *= 9.*std::sqrt(3.)*ksi/8./pi;
|
|
|
|
return result;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
//
|
|
|
|
G4double G4SynchrotronRadiationInMat::GetIntegrandForAngleK( G4double t)
|
|
{
|
|
G4double result, hypCos=std::cosh(t);
|
|
|
|
result = std::cosh(fOrderAngleK*t)*std::exp(t - fEta*hypCos); // fEta > 0. !
|
|
result /= hypCos;
|
|
return result;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Return K 1/3 or 2/3 for angular distribution
|
|
|
|
G4double G4SynchrotronRadiationInMat::GetAngleK( G4double eta)
|
|
{
|
|
fEta = eta; // should be > 0. !
|
|
G4int n;
|
|
G4double result, a;
|
|
|
|
a = fAlpha; // always = 0.
|
|
n = fRootNumber; // around default = 80
|
|
|
|
G4Integrator<G4SynchrotronRadiationInMat, G4double(G4SynchrotronRadiationInMat::*)(G4double)> integral;
|
|
|
|
result = integral.Laguerre(this,
|
|
&G4SynchrotronRadiationInMat::GetIntegrandForAngleK, a, n);
|
|
|
|
return result;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Relative angle diff distribution for given fKsi, which is set externally
|
|
|
|
G4double G4SynchrotronRadiationInMat::GetAngleNumberAtGammaKsi( G4double gpsi)
|
|
{
|
|
G4double result, funK, funK2, gpsi2 = gpsi*gpsi;
|
|
|
|
fPsiGamma = gpsi;
|
|
fEta = 0.5*fKsi*(1 + gpsi2)*std::sqrt(1 + gpsi2);
|
|
|
|
fOrderAngleK = 1./3.;
|
|
funK = GetAngleK(fEta);
|
|
funK2 = funK*funK;
|
|
|
|
result = gpsi2*funK2/(1 + gpsi2);
|
|
|
|
fOrderAngleK = 2./3.;
|
|
funK = GetAngleK(fEta);
|
|
funK2 = funK*funK;
|
|
|
|
result += funK2;
|
|
result *= (1 + gpsi2)*fKsi;
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
///////////////////// end of G4SynchrotronRadiationInMat.cc
|
|
|