HadrontherapyStepMax.cc

Go to the documentation of this file.

//
// ********************************************************************
// * License and Disclaimer                                           *
// *                                                                  *
// * The  Geant4 software  is  copyright of the Copyright Holders  of *
// * the Geant4 Collaboration.  It is provided  under  the terms  and *
// * conditions of the Geant4 Software License,  included in the file *
// * LICENSE and available at  http://cern.ch/geant4/license .  These *
// * include a list of copyright holders.                             *
// *                                                                  *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work  make  any representation or  warranty, express or implied, *
// * regarding  this  software system or assume any liability for its *
// * use.  Please see the license in the file  LICENSE  and URL above *
// * for the full disclaimer and the limitation of liability.         *
// *                                                                  *
// * This  code  implementation is the result of  the  scientific and *
// * technical work of the GEANT4 collaboration.                      *
// * By using,  copying,  modifying or  distributing the software (or *
// * any work based  on the software)  you  agree  to acknowledge its *
// * use  in  resulting  scientific  publications,  and indicate your *
// * acceptance of all terms of the Geant4 Software license.          *
// ********************************************************************
//
// This is the *BASIC* version of Hadrontherapy, a Geant4-based application
// See more at: http://g4advancedexamples.lngs.infn.it/Examples/hadrontherapy
//
// Visit the Hadrontherapy web site (http://www.lns.infn.it/link/Hadrontherapy) to request 
// the *COMPLETE* version of this program, together with its documentation;
// Hadrontherapy (both basic and full version) are supported by the Italian INFN
// Institute in the framework of the MC-INFN Group
//

#include "HadrontherapyStepMax.hh"
#include "HadrontherapyStepMaxMessenger.hh"

HadrontherapyStepMax::HadrontherapyStepMax(const G4String& processName)
 : G4VDiscreteProcess(processName),MaxChargedStep(DBL_MAX)
{
  pMess = new HadrontherapyStepMaxMessenger(this);
}
 
HadrontherapyStepMax::~HadrontherapyStepMax() { delete pMess; }

G4bool HadrontherapyStepMax::IsApplicable(const G4ParticleDefinition& particle) 
{ 
  return (particle.GetPDGCharge() != 0.);
}

void HadrontherapyStepMax::SetMaxStep(G4double step) {MaxChargedStep = step;}

G4double HadrontherapyStepMax::PostStepGetPhysicalInteractionLength(const G4Track& aTrack,
                                                  G4double,
                                                  G4ForceCondition* condition )
{
  // condition is set to "Not Forced"
  *condition = NotForced;
  
  G4double ProposedStep = DBL_MAX;

  if((MaxChargedStep > 0.) &&
     (aTrack.GetVolume() != 0) &&
     (aTrack.GetVolume()->GetName() == "DetectorPhys"))
     ProposedStep = MaxChargedStep;

  return ProposedStep;
}

G4VParticleChange* HadrontherapyStepMax::PostStepDoIt(const G4Track& aTrack, const G4Step&)
{
   // do nothing
   aParticleChange.Initialize(aTrack);
   return &aParticleChange;
}