G4AdjointTrackingAction.cc

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//
// G4AdjointTrackingAction class implementation
//
// Author: L. Desorgher, SpaceIT GmbH
// Contract: ESA contract 21435/08/NL/AT
// Customer: ESA/ESTEC
// --------------------------------------------------------------------
 
#include "G4AdjointTrackingAction.hh"
 
#include "G4AdjointSteppingAction.hh"
#include "G4ParticleTable.hh"
#include "G4Track.hh"
 
// --------------------------------------------------------------------
//
G4AdjointTrackingAction::G4AdjointTrackingAction(G4AdjointSteppingAction* anAction)
  : theAdjointSteppingAction(anAction)
{}
 
// --------------------------------------------------------------------
//
void G4AdjointTrackingAction::PreUserTrackingAction(const G4Track* aTrack)
{
  G4String partType = aTrack->GetParticleDefinition()->GetParticleType();
  if (G4StrUtil::contains(partType, "adjoint")) {
    is_adjoint_tracking_mode = true;
    theAdjointSteppingAction->SetPrimWeight(aTrack->GetWeight());
  }
  else {
    is_adjoint_tracking_mode = false;
    if (theUserFwdTrackingAction != nullptr) {
      theUserFwdTrackingAction->PreUserTrackingAction(aTrack);
    }
  }
  theAdjointSteppingAction->SetAdjointTrackingMode(is_adjoint_tracking_mode);
}
 
// --------------------------------------------------------------------
//
void G4AdjointTrackingAction::PostUserTrackingAction(const G4Track* aTrack)
{
  // important to have it here !
  //
  last_weight = theAdjointSteppingAction->GetLastWeight();
  last_ekin = theAdjointSteppingAction->GetLastEkin();
 
  if (! is_adjoint_tracking_mode) {
    if (theUserFwdTrackingAction != nullptr) {
      theUserFwdTrackingAction->PostUserTrackingAction(aTrack);
    }
  }
  else if (theAdjointSteppingAction->GetDidAdjParticleReachTheExtSource()) {
    last_pos = theAdjointSteppingAction->GetLastPosition();
    last_direction = theAdjointSteppingAction->GetLastMomentum();
    last_direction /= last_direction.mag();
    last_cos_th = last_direction.z();
    G4ParticleDefinition* aPartDef = theAdjointSteppingAction->GetLastPartDef();
    last_fwd_part_name = aPartDef->GetParticleName();
    last_fwd_part_name.erase(0, 4);
    last_fwd_part_PDGEncoding =
      G4ParticleTable::GetParticleTable()->FindParticle(last_fwd_part_name)->GetPDGEncoding();
    last_ekin = theAdjointSteppingAction->GetLastEkin();
    last_ekin_nuc = last_ekin;
    if (aPartDef->GetParticleType() == "adjoint_nucleus") {
      auto nb_nuc = G4double(aPartDef->GetBaryonNumber());
      last_ekin_nuc /= nb_nuc;
    }
 
    last_fwd_part_index = -1;
    std::size_t i = 0;
    while (i < pListOfPrimaryFwdParticles->size() && last_fwd_part_index < 0) {
      if ((*pListOfPrimaryFwdParticles)[i]->GetParticleName() == last_fwd_part_name) {
        last_fwd_part_index = (G4int)i;
      }
      ++i;
    }
 
    // Fill the vectors
    //
    last_pos_vec.push_back(last_pos);
    last_direction_vec.push_back(last_direction);
    last_ekin_vec.push_back(last_ekin);
    last_ekin_nuc_vec.push_back(last_ekin_nuc);
    last_cos_th_vec.push_back(last_cos_th);
    last_weight_vec.push_back(last_weight);
    last_fwd_part_PDGEncoding_vec.push_back(last_fwd_part_PDGEncoding);
    last_fwd_part_index_vec.push_back(last_fwd_part_index);
  }
  else {
  }
}
 
// --------------------------------------------------------------------
//
void G4AdjointTrackingAction::ClearEndOfAdjointTrackInfoVectors()
{
  last_pos_vec.clear();
  last_direction_vec.clear();
  last_ekin_vec.clear();
  last_ekin_nuc_vec.clear();
  last_cos_th_vec.clear();
  last_weight_vec.clear();
  last_fwd_part_PDGEncoding_vec.clear();
  last_fwd_part_index_vec.clear();
}