Gabriele Cosmo
168 lines
5.4 KiB
C++
168 lines
5.4 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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// $Id$
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//
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// G4VTransitionRadiation class -- implementation file
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// GEANT 4 class implementation file --- Copyright CERN 1995
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// CERN Geneva Switzerland
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// History:
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// 29.02.04 V.Ivanchenko create
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// 28.07.05, P.Gumplinger add G4ProcessType to constructor
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#include "G4VTransitionRadiation.hh"
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#include "G4ParticleDefinition.hh"
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#include "G4VTRModel.hh"
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#include "G4Material.hh"
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#include "G4Region.hh"
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#include "G4TransportationManager.hh"
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///////////////////////////////////////////////////////////////////////
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G4VTransitionRadiation::G4VTransitionRadiation( const G4String& processName,
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G4ProcessType type )
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: G4VDiscreteProcess(processName, type),
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region(0),
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model(0),
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nSteps(0),
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gammaMin(100),
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cosDThetaMax(std::cos(0.1))
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{
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Clear();
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}
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///////////////////////////////////////////////////////////////////////
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G4VTransitionRadiation::~G4VTransitionRadiation()
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{
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Clear();
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}
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///////////////////////////////////////////////////////////////////////
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void G4VTransitionRadiation::Clear()
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{
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materials.clear();
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steps.clear();
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normals.clear();
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nSteps = 0;
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}
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///////////////////////////////////////////////////////////////////////
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G4VParticleChange* G4VTransitionRadiation::PostStepDoIt(
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const G4Track& track,
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const G4Step& step)
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{
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// Fill temporary vectors
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const G4Material* material = track.GetMaterial();
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G4double length = step.GetStepLength();
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G4ThreeVector direction = track.GetMomentumDirection();
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if(nSteps == 0) {
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nSteps = 1;
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materials.push_back(material);
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steps.push_back(length);
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const G4StepPoint* point = step.GetPreStepPoint();
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startingPosition = point->GetPosition();
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startingDirection = point->GetMomentumDirection();
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G4bool valid = true;
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G4ThreeVector n = G4TransportationManager::GetTransportationManager()
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->GetNavigatorForTracking()->GetLocalExitNormal(&valid);
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if(valid) normals.push_back(n);
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else normals.push_back(direction);
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} else {
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if(material == materials[nSteps-1]) {
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steps[nSteps-1] += length;
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} else {
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nSteps++;
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materials.push_back(material);
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steps.push_back(length);
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G4bool valid = true;
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G4ThreeVector n = G4TransportationManager::GetTransportationManager()
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->GetNavigatorForTracking()->GetLocalExitNormal(&valid);
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if(valid) normals.push_back(n);
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else normals.push_back(direction);
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}
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}
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// Check POstStepPoint condition
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if(track.GetTrackStatus() == fStopAndKill ||
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track.GetVolume()->GetLogicalVolume()->GetRegion() != region ||
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startingDirection.x()*direction.x() +
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startingDirection.y()*direction.y() +
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startingDirection.z()*direction.z() < cosDThetaMax)
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{
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if(model) {
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model->GenerateSecondaries(*pParticleChange, materials, steps,
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normals, startingPosition, track);
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}
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Clear();
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}
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return pParticleChange;
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}
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///////////////////////////////////////////////////////////////////////
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G4bool G4VTransitionRadiation::IsApplicable(
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const G4ParticleDefinition& aParticle)
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{
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return ( aParticle.GetPDGCharge() != 0.0 );
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}
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///////////////////////////////////////////////////////////////////////
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void G4VTransitionRadiation::SetRegion(const G4Region* reg)
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{
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region = reg;
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}
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///////////////////////////////////////////////////////////////////////
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void G4VTransitionRadiation::SetModel(G4VTRModel* mod)
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{
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model = mod;
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}
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///////////////////////////////////////////////////////////////////////
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void G4VTransitionRadiation::PrintInfoDefinition()
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{
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if(model) model->PrintInfo();
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}
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///////////////////////////////////////////////////////////////////////
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