Hodoscope sensitive detector. More...

#include <Doxymodules_basic.h>

Inheritance diagram for B5::HodoscopeSD:

Public Member Functions
	HodoscopeSD (G4String name)

	~HodoscopeSD () override=default

void	Initialize (G4HCofThisEvent *HCE) override

G4bool	ProcessHits (G4Step aStep, G4TouchableHistory ROhist) override

Private Attributes
HodoscopeHitsCollection *	fHitsCollection = nullptr

G4int	fHCID = -1

Detailed Description

Hodoscope sensitive detector.

Definition at line 195 of file Doxymodules_basic.h.

Constructor & Destructor Documentation

◆ HodoscopeSD()

B5::HodoscopeSD::HodoscopeSD ( G4String name )

Definition at line 45 of file HodoscopeSD.cc.

: G4VSensitiveDetector(name)
{
  collectionName.insert( "hodoscopeColl");
}

◆ ~HodoscopeSD()

B5::HodoscopeSD::~HodoscopeSD ( )

overridedefault

Member Function Documentation

◆ Initialize()

void B5::HodoscopeSD::Initialize ( G4HCofThisEvent * HCE )

override

Definition at line 53 of file HodoscopeSD.cc.

{
  fHitsCollection = new HodoscopeHitsCollection
  (SensitiveDetectorName,collectionName[0]);
  if (fHCID<0) {
    fHCID = G4SDManager::GetSDMpointer()->GetCollectionID(fHitsCollection);
  }
  hce->AddHitsCollection(fHCID,fHitsCollection);
}

◆ ProcessHits()

G4bool B5::HodoscopeSD::ProcessHits	(	G4Step *	aStep,
		G4TouchableHistory *	ROhist
	)

override

Definition at line 65 of file HodoscopeSD.cc.

{
  auto edep = step->GetTotalEnergyDeposit();
  if (edep==0.) return true;
 
  auto preStepPoint = step->GetPreStepPoint();
  auto touchable = preStepPoint->GetTouchable();
  auto copyNo = touchable->GetVolume()->GetCopyNo();
  auto hitTime = preStepPoint->GetGlobalTime();
 
  // check if this finger already has a hit
  auto ix = -1;
  for (std::size_t i=0;i<fHitsCollection->entries();++i) {
    if ((*fHitsCollection)[i]->GetID()==copyNo) {
      ix = i;
      break;
    }
  }
 
  if (ix>=0) {
    // if it has, then take the earlier time
    if ((*fHitsCollection)[ix]->GetTime()>hitTime) {
      (*fHitsCollection)[ix]->SetTime(hitTime);
    }
  }
  else {
    // if not, create a new hit and set it to the collection
    auto hit = new HodoscopeHit(copyNo,hitTime);
    auto physical = touchable->GetVolume();
    hit->SetLogV(physical->GetLogicalVolume());
    auto transform = touchable->GetHistory()->GetTopTransform();
    transform.Invert();
    hit->SetRot(transform.NetRotation());
    hit->SetPos(transform.NetTranslation());
    fHitsCollection->insert(hit);
  }
  return true;
}

Member Data Documentation

◆ fHitsCollection

HodoscopeHitsCollection* B5::HodoscopeSD::fHitsCollection = nullptr

private

Definition at line 55 of file HodoscopeSD.hh.

◆ fHCID

G4int B5::HodoscopeSD::fHCID = -1