B1EventAction.cc

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// $Id$
//

#include "B1EventAction.hh"

#include "B1RunAction.hh"
#include "B1SteppingAction.hh"
  // use of stepping action to get and reset accumulated energy  

#include "G4RunManager.hh"
#include "G4Event.hh"

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B1EventAction* B1EventAction::fgInstance = 0;

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B1EventAction* B1EventAction::Instance()
{
// Static acces function via G4RunManager 

  return fgInstance;
}      

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B1EventAction::B1EventAction()
: G4UserEventAction(),
  fPrintModulo(100),
  fEnergySum(0.),
  fEnergy2Sum(0.)
{ 
  fgInstance = this;
}

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B1EventAction::~B1EventAction()
{ 
  fgInstance = 0;
}

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void B1EventAction::BeginOfEventAction(const G4Event* event)
{  
  G4int eventNb = event->GetEventID();
  if (eventNb%fPrintModulo == 0) { 
    G4cout << "\n---> Begin of event: " << eventNb << G4endl;
  }
 
  // Reset accounted energy in stepping action
  B1SteppingAction::Instance()->Reset();
}

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void B1EventAction::EndOfEventAction(const G4Event* /*event*/)
{
  // accumulate statistics
  G4double energy = B1SteppingAction::Instance()->GetEnergy();
  fEnergySum  += energy;
  fEnergy2Sum += energy*energy;
}  

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void B1EventAction::Reset()
{
  //reset cumulative quantities
  //
  fEnergySum = 0.;
  fEnergy2Sum = 0.;
}

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