Gabriele Cosmo
185 lines
7.0 KiB
C++
185 lines
7.0 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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* =============================================================================
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*
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* Filename: CexmcPhysicsList.hh
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*
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* Description: mandatory physics list
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*
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* Version: 1.0
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* Created: 11.10.2009 14:51:08
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* Revision: none
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* Compiler: gcc
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*
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* Author: Alexey Radkov (),
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* Company: PNPI
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*
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* =============================================================================
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*/
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#ifndef CEXMC_PHYSICS_LIST_HH
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#define CEXMC_PHYSICS_LIST_HH
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#include <Randomize.hh>
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#include <G4Track.hh>
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#include <G4StepPoint.hh>
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#include <G4ThreeVector.hh>
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#include <G4AffineTransform.hh>
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#include "CexmcPhysicsManager.hh"
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#include "CexmcProductionModel.hh"
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#include "CexmcIncidentParticleTrackInfo.hh"
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#include "CexmcSetup.hh"
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#include "CexmcException.hh"
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#include "CexmcCommon.hh"
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template < typename BasePhysics, template < typename > class StudiedPhysics,
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typename ProductionModel >
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class CexmcPhysicsList : public BasePhysics, public CexmcPhysicsManager
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{
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public:
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CexmcPhysicsList();
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public:
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CexmcProductionModel * GetProductionModel( void );
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G4bool IsStudiedProcessAllowed( void ) const;
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void ResampleTrackLengthInTarget( const G4Track * track,
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const G4StepPoint * stepPoint );
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void SetupConstructionHook( const CexmcSetup * setup );
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protected:
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void CalculateBasicMaxIL( const G4ThreeVector & direction );
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private:
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StudiedPhysics< ProductionModel > * studiedPhysics;
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G4VSolid * targetSolid;
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G4AffineTransform targetTransform;
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};
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template < typename BasePhysics, template < typename > class StudiedPhysics,
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typename ProductionModel >
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CexmcPhysicsList< BasePhysics, StudiedPhysics, ProductionModel >::
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CexmcPhysicsList() : studiedPhysics( NULL ), targetSolid( NULL )
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{
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studiedPhysics = new StudiedPhysics< ProductionModel >( this );
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this->RegisterPhysics( studiedPhysics );
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}
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template < typename BasePhysics, template < typename > class StudiedPhysics,
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typename ProductionModel >
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CexmcProductionModel *
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CexmcPhysicsList< BasePhysics, StudiedPhysics, ProductionModel >::
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GetProductionModel( void )
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{
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return studiedPhysics->GetProductionModel();
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}
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template < typename BasePhysics, template < typename > class StudiedPhysics,
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typename ProductionModel >
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G4bool CexmcPhysicsList< BasePhysics, StudiedPhysics, ProductionModel >::
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IsStudiedProcessAllowed( void ) const
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{
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return numberOfTriggeredStudiedInteractions == 0;
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}
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template < typename BasePhysics, template < typename > class StudiedPhysics,
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typename ProductionModel >
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void CexmcPhysicsList< BasePhysics, StudiedPhysics, ProductionModel >::
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ResampleTrackLengthInTarget( const G4Track * track,
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const G4StepPoint * stepPoint )
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{
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/* BEWARE: all callers must ensure that:
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* 1) track (or stepPoint if not NULL) is inside target volume:
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* in this case we can use already calculated targetTransform
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* 2) track info object is of type CexmcIncidentParticleTrackInfo*:
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* in this case we can use static_cast<> for trackInfo */
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CexmcIncidentParticleTrackInfo * trackInfo(
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static_cast< CexmcIncidentParticleTrackInfo * >(
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track->GetUserInformation() ) );
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if ( ! trackInfo )
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return;
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G4ThreeVector position;
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G4ThreeVector direction;
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if ( stepPoint )
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{
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position = targetTransform.TransformPoint( stepPoint->GetPosition() );
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direction = targetTransform.TransformAxis(
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stepPoint->GetMomentumDirection() );
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}
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else
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{
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position = targetTransform.TransformPoint( track->GetPosition() );
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direction = targetTransform.TransformAxis(
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track->GetMomentumDirection() );
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}
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G4double distanceInTarget( targetSolid->DistanceToOut( position,
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direction ) );
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trackInfo->ResetCurrentTrackLengthInTarget();
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trackInfo->SetFinalTrackLengthInTarget( G4UniformRand() *
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std::max( distanceInTarget, proposedMaxIL ) );
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trackInfo->SetNeedsTrackLengthResampling( false );
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}
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template < typename BasePhysics, template < typename > class StudiedPhysics,
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typename ProductionModel >
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void CexmcPhysicsList< BasePhysics, StudiedPhysics, ProductionModel >::
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CalculateBasicMaxIL( const G4ThreeVector & direction )
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{
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/* basicMaxIL is double distance from the point (0, 0, 0) to the edge of the
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* target solid along the specified direction */
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basicMaxIL = targetSolid->DistanceToOut( G4ThreeVector(),
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targetTransform.TransformAxis( direction ) ) * 2;
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}
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template < typename BasePhysics, template < typename > class StudiedPhysics,
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typename ProductionModel >
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void CexmcPhysicsList< BasePhysics, StudiedPhysics, ProductionModel >::
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SetupConstructionHook( const CexmcSetup * setup )
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{
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targetSolid = setup->GetVolume( CexmcSetup::Target )->GetSolid();
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targetTransform = setup->GetTargetTransform().Inverse();
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}
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#endif
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