Par01PionShowerModel Class Reference

#include <Par01PionShowerModel.hh>

Inheritance diagram for Par01PionShowerModel:

Collaboration diagram for Par01PionShowerModel:

Public Member Functions
	Par01PionShowerModel (G4String, G4Region *)
	Par01PionShowerModel (G4String)
	~Par01PionShowerModel ()
virtual G4bool	IsApplicable (const G4ParticleDefinition &)
virtual G4bool	ModelTrigger (const G4FastTrack &)
virtual void	DoIt (const G4FastTrack &, G4FastStep &)
Public Member Functions inherited from G4VFastSimulationModel
	G4VFastSimulationModel (const G4String &aName)
	G4VFastSimulationModel (const G4String &aName, G4Envelope *, G4bool IsUnique=FALSE)
virtual	~G4VFastSimulationModel ()
virtual G4bool	AtRestModelTrigger (const G4FastTrack &)
virtual void	AtRestDoIt (const G4FastTrack &, G4FastStep &)
const G4String	GetName () const
G4bool	operator== (const G4VFastSimulationModel &) const

Private Member Functions
void	AssignSpotAndCallHit (const Par01EnergySpot &eSpot)
void	FillFakeStep (const Par01EnergySpot &eSpot)
void	Explode (const G4FastTrack &)
void	BuildDetectorResponse ()

Private Attributes
G4Step *	fFakeStep
G4StepPoint *	fFakePreStepPoint
G4StepPoint *	fFakePostStepPoint
G4TouchableHandle	fTouchableHandle
G4Navigator *	fpNavigator
G4bool	fNaviSetup
std::vector< Par01EnergySpot >	feSpotList

Detailed Description

Definition at line 43 of file Par01PionShowerModel.hh.

Constructor & Destructor Documentation

Par01PionShowerModel() [1/2]

Par01PionShowerModel::Par01PionShowerModel	(	G4String	modelName,
		G4Region *	envelope
	)

Definition at line 44 of file Par01PionShowerModel.cc.

: G4VFastSimulationModel(modelName, envelope)
{
  fFakeStep          = new G4Step();
  fFakePreStepPoint  = fFakeStep->GetPreStepPoint();
  fFakePostStepPoint = fFakeStep->GetPostStepPoint();
  fTouchableHandle   = new G4TouchableHistory();
  fpNavigator        = new G4Navigator();
  fNaviSetup         = false;
}

Par01PionShowerModel() [2/2]

Par01PionShowerModel::Par01PionShowerModel

(

G4String

modelName

)

Definition at line 55 of file Par01PionShowerModel.cc.

: G4VFastSimulationModel(modelName)
{
  fFakeStep          = new G4Step();
  fFakePreStepPoint  = fFakeStep->GetPreStepPoint();
  fFakePostStepPoint = fFakeStep->GetPostStepPoint();
  fTouchableHandle   = new G4TouchableHistory();
  fpNavigator        = new G4Navigator();
  fNaviSetup         = false;
}

~Par01PionShowerModel()

Par01PionShowerModel::~Par01PionShowerModel

(

)

Definition at line 66 of file Par01PionShowerModel.cc.

{
  delete fFakeStep;
  delete fpNavigator;
}

Member Function Documentation

AssignSpotAndCallHit()

void Par01PionShowerModel::AssignSpotAndCallHit ( const Par01EnergySpot &  eSpot )

private

Definition at line 171 of file Par01PionShowerModel.cc.

{
  //
  // "converts" the energy spot into the fake
  // G4Step to pass to sensitive detector:
  //
  FillFakeStep(eSpot);

  //
  // call sensitive part: taken/adapted from the stepping:
  // Send G4Step information to Hit/Dig if the volume is sensitive
  //
  G4VPhysicalVolume* pCurrentVolume = 
    fFakeStep->GetPreStepPoint()->GetPhysicalVolume();
  G4VSensitiveDetector* pSensitive;
  
  if( pCurrentVolume != 0 )
    {
      pSensitive = pCurrentVolume->GetLogicalVolume()->
        GetSensitiveDetector();
      if( pSensitive != 0 )
        {
          pSensitive->Hit(fFakeStep);
        }
    }
}

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BuildDetectorResponse()

void Par01PionShowerModel::BuildDetectorResponse ( )

private

Definition at line 154 of file Par01PionShowerModel.cc.

{
  // Does the assignation of the energy spots to the sensitive volumes:
  for (size_t i = 0; i < feSpotList.size(); i++)
    {
      // Draw the energy spot:
      G4Colour red(1.,0.,0.);
      feSpotList[i].Draw(&red);
      //      feSpotList[i].Print();
      
      // "converts" the energy spot into the fake
      // G4Step to pass to sensitive detector:
      AssignSpotAndCallHit(feSpotList[i]);
    }
}

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DoIt()

void Par01PionShowerModel::DoIt ( const G4FastTrack &  fastTrack, G4FastStep &  fastStep  )

virtual

Implements G4VFastSimulationModel.

Definition at line 86 of file Par01PionShowerModel.cc.

{
  //  G4cout << "Par01PionShowerModel::DoIt" << G4endl;

  // Kill the parameterised particle:
  fastStep.KillPrimaryTrack();
  fastStep.ProposePrimaryTrackPathLength(0.0);
  fastStep.ProposeTotalEnergyDeposited(fastTrack.GetPrimaryTrack()->GetKineticEnergy());

  // split into "energy spots" energy according to the shower shape:
  Explode(fastTrack);
  
  // and put those energy spots into the crystals:
  BuildDetectorResponse();
}

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Explode()

void Par01PionShowerModel::Explode ( const G4FastTrack &  fastTrack )

private

Definition at line 103 of file Par01PionShowerModel.cc.

{
  //-----------------------------------------------------
  // Non-physical shower generated: exp along z and
  // transverse.
  //-----------------------------------------------------

  // center of the shower, we put at the middle of the ghost:
  G4ThreeVector showerCenter;
  G4double distOut;
  distOut = fastTrack.GetEnvelopeSolid()->
    DistanceToOut(fastTrack.GetPrimaryTrackLocalPosition(),
                  fastTrack.GetPrimaryTrackLocalDirection());
  showerCenter = fastTrack.GetPrimaryTrackLocalPosition() + 
    (distOut/2.)*fastTrack.GetPrimaryTrackLocalDirection();

  showerCenter = fastTrack.GetInverseAffineTransformation()->
    TransformPoint(showerCenter);

  // axis of the shower, in global reference frame:
  G4ThreeVector xShower, yShower, zShower;
  zShower = fastTrack.GetPrimaryTrack()->GetMomentumDirection();
  xShower = zShower.orthogonal();
  yShower = zShower.cross(xShower);
  
  // shoot the energy spots:
  G4double Energy = fastTrack.GetPrimaryTrack()->GetKineticEnergy();
  G4int nSpot = 50;
  G4double deposit = Energy/double(nSpot);
  Par01EnergySpot eSpot;
  eSpot.SetEnergy(deposit);
  G4ThreeVector ePoint;

  // clear the spot list before use
  feSpotList.clear();

  G4double z, r, phi;
  for (int i = 0; i < nSpot; i++)
    {
      z   = G4RandGauss::shoot(0,20*cm);
      r   = G4RandGauss::shoot(0,10*cm);
      phi = G4UniformRand()*twopi;
      ePoint = showerCenter +
        z*zShower +
        r*std::cos(phi)*xShower + r*std::sin(phi)*yShower;
      eSpot.SetPosition(ePoint);
      feSpotList.push_back(eSpot);
    }
}

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FillFakeStep()

void Par01PionShowerModel::FillFakeStep ( const Par01EnergySpot &  eSpot )

private

Definition at line 199 of file Par01PionShowerModel.cc.

{
  //-----------------------------------------------------------
  // find in which volume the spot is.
  //-----------------------------------------------------------
  if (!fNaviSetup)
    {
      fpNavigator->
        SetWorldVolume(G4TransportationManager::GetTransportationManager()->
                       GetNavigatorForTracking()->GetWorldVolume());
      fpNavigator->
        LocateGlobalPointAndUpdateTouchableHandle(eSpot.GetPosition(),
                                            G4ThreeVector(0.,0.,0.),
                                            fTouchableHandle,
                                            false);
      fNaviSetup = true;
    }
  else
    {
      fpNavigator->
        LocateGlobalPointAndUpdateTouchableHandle(eSpot.GetPosition(),
                                            G4ThreeVector(0.,0.,0.),
                                            fTouchableHandle);
     }
  //--------------------------------------
  // Fills attribute of the G4Step needed
  // by our sensitive detector:
  //-------------------------------------
  // set touchable volume at PreStepPoint:
  fFakePreStepPoint->SetTouchableHandle(fTouchableHandle);
  // set total energy deposit:
  fFakeStep->SetTotalEnergyDeposit(eSpot.GetEnergy());
}

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IsApplicable()

G4bool Par01PionShowerModel::IsApplicable ( const G4ParticleDefinition &  particleType )

virtual

Implements G4VFastSimulationModel.

Definition at line 72 of file Par01PionShowerModel.cc.

{
  return 
    &particleType == G4PionMinus::PionMinusDefinition() ||
    &particleType == G4PionPlus::PionPlusDefinition();
}

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ModelTrigger()

G4bool Par01PionShowerModel::ModelTrigger ( const G4FastTrack &  )

virtual

Implements G4VFastSimulationModel.

Definition at line 79 of file Par01PionShowerModel.cc.

{
  // Applies the parameterisation always:
  // ie as soon as the pion enters the envelope
  return true;
}

Member Data Documentation

feSpotList

std::vector<Par01EnergySpot> Par01PionShowerModel::feSpotList

private

Definition at line 78 of file Par01PionShowerModel.hh.

fFakePostStepPoint

G4StepPoint * Par01PionShowerModel::fFakePostStepPoint

private

Definition at line 73 of file Par01PionShowerModel.hh.

fFakePreStepPoint

G4StepPoint* Par01PionShowerModel::fFakePreStepPoint

private

Definition at line 73 of file Par01PionShowerModel.hh.

fFakeStep

G4Step* Par01PionShowerModel::fFakeStep

private

Definition at line 72 of file Par01PionShowerModel.hh.

fNaviSetup

G4bool Par01PionShowerModel::fNaviSetup

private

Definition at line 76 of file Par01PionShowerModel.hh.

fpNavigator

G4Navigator* Par01PionShowerModel::fpNavigator

private

Definition at line 75 of file Par01PionShowerModel.hh.

fTouchableHandle

G4TouchableHandle Par01PionShowerModel::fTouchableHandle

private

Definition at line 74 of file Par01PionShowerModel.hh.

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The documentation for this class was generated from the following files:

• Par01PionShowerModel.hh
• Par01PionShowerModel.cc