Gabriele Cosmo
108 lines
4.3 KiB
C++
108 lines
4.3 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: CexmcPrimaryGeneratorAction.cc
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*
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* Description: primary particle position, direction, energy etc.
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*
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* Version: 1.0
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* Created: 11.10.2009 14:43:03
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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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#include <G4Event.hh>
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#include <G4ParticleTable.hh>
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#include <globals.hh>
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#include <Randomize.hh>
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#include "CexmcPrimaryGeneratorAction.hh"
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#include "CexmcPrimaryGeneratorActionMessenger.hh"
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#include "CexmcParticleGun.hh"
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#include "CexmcCommon.hh"
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CexmcPrimaryGeneratorAction::CexmcPrimaryGeneratorAction(
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CexmcPhysicsManager * physicsManager ) :
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particleGun( NULL ), fwhmPosX( 0 ), fwhmPosY( 0 ), fwhmDirX( 0 ),
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fwhmDirY( 0 ), messenger( NULL )
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{
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particleGun = new CexmcParticleGun( physicsManager );
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messenger = new CexmcPrimaryGeneratorActionMessenger( this );
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}
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CexmcPrimaryGeneratorAction::~CexmcPrimaryGeneratorAction()
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{
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delete particleGun;
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delete messenger;
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}
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void CexmcPrimaryGeneratorAction::GeneratePrimaries( G4Event * event )
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{
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particleGun->PrepareForNewEvent();
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const G4ThreeVector & origPos( particleGun->GetOrigPosition() );
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const G4ThreeVector & origDir( particleGun->GetOrigDirection() );
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G4double origMomentumAmp( particleGun->GetOrigMomentumAmp() );
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G4double randPosX( G4RandGauss::shoot( origPos.x(),
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fwhmPosX * CexmcFwhmToStddev ) );
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G4double randPosY( G4RandGauss::shoot( origPos.y(),
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fwhmPosY * CexmcFwhmToStddev ) );
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G4ThreeVector newPos( randPosX, randPosY, origPos.z() );
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G4double randAngleX( G4RandGauss::shoot( origDir.x(),
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fwhmDirX * CexmcFwhmToStddev ) );
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G4double randAngleY( G4RandGauss::shoot( origDir.y(),
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fwhmDirY * CexmcFwhmToStddev ) );
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G4ThreeVector newAngle( randAngleX, randAngleY, origDir.z() );
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G4double newMomentumAmp( G4RandGauss::shoot( origMomentumAmp,
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fwhmMomentumAmp * origMomentumAmp *
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CexmcFwhmToStddev ) );
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particleGun->SetParticlePosition( newPos );
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particleGun->SetParticleMomentumDirection( newAngle );
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particleGun->SetParticleMomentum( newMomentumAmp );
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particleGun->GeneratePrimaryVertex( event );
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}
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CexmcParticleGun * CexmcPrimaryGeneratorAction::GetParticleGun( void )
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{
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return particleGun;
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}
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