G4CascadeDeexcitation.cc

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//
//
// Takes an arbitrary excited or unphysical nuclear state and produces
// a final state with evaporated particles and (possibly) a stable nucleus.
//
// 20100926  M. Kelsey -- Move to new G4VCascadeDeexcitation base class.
// 20110302  M. Kelsey -- Don't do "final" conservation check (not needed)
// 20130621  Replace collide() interface with deExcite() using G4Fragment
// 20130622  Inherit from G4CascadeDeexciteBase
 
#include "G4CascadeDeexcitation.hh"
#include "globals.hh"
#include "G4BigBanger.hh"
#include "G4EquilibriumEvaporator.hh"
#include "G4NonEquilibriumEvaporator.hh"
#include "G4InuclNuclei.hh"
#include "G4InuclParticle.hh"
 
 
// Constructor and destructor
 
G4CascadeDeexcitation::G4CascadeDeexcitation() 
  : G4CascadeDeexciteBase("G4CascadeDeexcitation"),
    theBigBanger(new G4BigBanger),
    theNonEquilibriumEvaporator(new G4NonEquilibriumEvaporator),
    theEquilibriumEvaporator(new G4EquilibriumEvaporator) {}
 
G4CascadeDeexcitation::~G4CascadeDeexcitation() {
  delete theBigBanger;
  delete theNonEquilibriumEvaporator;
  delete theEquilibriumEvaporator;
}
 
void G4CascadeDeexcitation::setVerboseLevel(G4int verbose) {
  G4CascadeDeexciteBase::setVerboseLevel(verbose);
  theBigBanger->setVerboseLevel(verbose);
  theNonEquilibriumEvaporator->setVerboseLevel(verbose);
  theEquilibriumEvaporator->setVerboseLevel(verbose);
}
 
 
// Convert generic G4Fragment into Bertini particle
 
void G4CascadeDeexcitation::deExcite(const G4Fragment& fragment,
                     G4CollisionOutput& globalOutput) {
  if (verboseLevel) {
    G4cout << " >>> G4CascadeDeexcitation::deExcite" << G4endl;
  }
 
  if (verboseLevel > 1) G4cout << fragment << G4endl;
 
  // Check if fragment should be broken up
  if (explosion(fragment)) {
    if (verboseLevel > 1) G4cout << " big bang after cascade " << G4endl;
 
    // Add result of explosion directly to output and exit
    theBigBanger->deExcite(fragment, globalOutput);
    return;
  }
 
  // Fragment is unstable nucleus
  tempOutput.reset();
  theNonEquilibriumEvaporator->deExcite(fragment, tempOutput);
  
  if (verboseLevel > 1) {
    G4cout << " After NonEquilibriumEvaporator " << G4endl;
    tempOutput.printCollisionOutput(G4cout);
  }
  
  // Copy evaporated particles (not nuclear fragment) to output
  globalOutput.addOutgoingParticles(tempOutput.getOutgoingParticles());
    
  // Use nuclear fragment left from non-equilibrium for next step
  // NOTE:  Must make a copy before reset occurs below
  G4Fragment newfrag = tempOutput.getRecoilFragment();
 
  tempOutput.reset();
  theEquilibriumEvaporator->deExcite(newfrag, tempOutput);
    
  if (verboseLevel > 1) {
    G4cout << " After EquilibriumEvaporator " << G4endl;
    tempOutput.printCollisionOutput(G4cout);
  }
    
  globalOutput.add(tempOutput);      // Evaporated particles and nucleus
}