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// $Id: HadrontherapyDetectorDecay.cc; May 2005
// ----------------------------------------------------------------------------
//                 GEANT 4 - Hadrontherapy example
// ----------------------------------------------------------------------------
// Code developed by:
//
// G.A.P. Cirrone(a)*, F. Di Rosa(a), S. Guatelli(b), G. Russo(a)
// 
// (a) Laboratori Nazionali del Sud 
//     of the INFN, Catania, Italy
// (b) INFN Section of Genova, Genova, Italy
// 
// * cirrone@lns.infn.it
// ----------------------------------------------------------------------------
#include "Decay.hh"
#include "G4ParticleDefinition.hh"
#include "G4ProcessManager.hh"
#include "G4Decay.hh"


Decay::Decay(const G4String& name): 
  G4VPhysicsConstructor(name)
{ 
  G4cout<< "DECAY PROCESS: G4Decay (unstable particles)" 
        << G4endl;
}

Decay::~Decay()
{}

void Decay::ConstructProcess()
{
  G4Decay* decayProcess = new G4Decay();
  theParticleIterator -> reset();

  while( (*theParticleIterator)() )
    {
      G4ParticleDefinition* particle = theParticleIterator -> value();
      G4ProcessManager* processManager = particle -> GetProcessManager();

      if ( decayProcess -> IsApplicable(*particle) && 
           !particle -> IsShortLived() ) 
	{ 
	  G4String name =  particle -> GetParticleName();
	  processManager -> AddProcess(decayProcess);
	 
	  processManager -> SetProcessOrdering(decayProcess, idxPostStep);
	  processManager -> SetProcessOrdering(decayProcess, idxAtRest);
	}
    }
}