Gabriele Cosmo
143 lines
4.8 KiB
C++
143 lines
4.8 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4OpAbsorption.cc,v 1.4 2001/07/11 10:08:22 gunter Exp $
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// GEANT4 tag $Name: geant4-05-02-patch-01 $
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//
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////////////////////////////////////////////////////////////////////////
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// Optical Photon Absorption Class Implementation
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////////////////////////////////////////////////////////////////////////
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//
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// File: G4OpAbsorption.cc
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// Description: Discrete Process -- Absorption of Optical Photons
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// Version: 1.0
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// Created: 1996-05-21
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// Author: Juliet Armstrong
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// Updated: 2000-09-18 by Peter Gumplinger
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// > comment out warning - "No Absorption length specified"
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// 1997-04-09 by Peter Gumplinger
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// > new physics/tracking scheme
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// 1998-08-25 by Stefano Magni
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// > Change process to use G4MaterialPropertiesTables
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// 1998-09-03 by Peter Gumplinger
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// > Protect G4MaterialPropertyVector* AttenuationLengthVector
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// mail: gum@triumf.ca
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// magni@mi.infn.it
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//
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////////////////////////////////////////////////////////////////////////
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#include "G4ios.hh"
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#include "G4OpAbsorption.hh"
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/////////////////////////
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// Class Implementation
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/////////////////////////
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//////////////
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// Operators
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//////////////
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// G4OpAbsorption::operator=(const G4OpAbsorption &right)
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// {
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// }
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/////////////////
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// Constructors
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/////////////////
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G4OpAbsorption::G4OpAbsorption(const G4String& processName)
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: G4VDiscreteProcess(processName)
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{
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if (verboseLevel>0) {
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G4cout << GetProcessName() << " is created " << G4endl;
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}
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}
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// G4OpAbsorption::G4OpAbsorption(const G4OpAbsorpton &right)
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// {
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// }
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////////////////
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// Destructors
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////////////////
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G4OpAbsorption::~G4OpAbsorption(){}
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////////////
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// Methods
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////////////
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// PostStepDoIt
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// -------------
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//
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G4VParticleChange*
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G4OpAbsorption::PostStepDoIt(const G4Track& aTrack, const G4Step& aStep)
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{
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aParticleChange.Initialize(aTrack);
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aParticleChange.SetStatusChange(fStopAndKill);
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if (verboseLevel>0) {
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G4cout << "\n** Photon absorbed! **" << G4endl;
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}
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return G4VDiscreteProcess::PostStepDoIt(aTrack, aStep);
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}
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// GetMeanFreePath
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// ---------------
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//
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G4double G4OpAbsorption::GetMeanFreePath(const G4Track& aTrack,
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G4double ,
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G4ForceCondition* )
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{
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const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
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const G4Material* aMaterial = aTrack.GetMaterial();
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G4double thePhotonMomentum = aParticle->GetTotalMomentum();
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G4MaterialPropertiesTable* aMaterialPropertyTable;
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G4MaterialPropertyVector* AttenuationLengthVector;
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G4double AttenuationLength = DBL_MAX;
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aMaterialPropertyTable = aMaterial->GetMaterialPropertiesTable();
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if ( aMaterialPropertyTable ) {
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AttenuationLengthVector = aMaterialPropertyTable->
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GetProperty("ABSLENGTH");
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if ( AttenuationLengthVector ){
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AttenuationLength = AttenuationLengthVector->
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GetProperty (thePhotonMomentum);
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}
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else {
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// G4cout << "No Absorption length specified" << G4endl;
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}
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}
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else {
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// G4cout << "No Absorption length specified" << G4endl;
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}
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return AttenuationLength;
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}
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