TimeDetHit Class Reference

#include <TimeDetHit.h>

Inheritance diagram for TimeDetHit:

Collaboration diagram for TimeDetHit:

Public Member Functions
	TimeDetHit ()
	TimeDetHit (TimeDetPoint *p, Double_t t0)
	~TimeDetHit () override=default
	TimeDetHit (const TimeDetHit &point)=default
TimeDetHit &	operator= (const TimeDetHit &point)=default
Double_t	GetX () const
Double_t	GetY () const
Double_t	GetZ () const
TVector3	GetXYZ () const
TGeoNode *	GetNode () const
std::vector< double >	GetTime (Double_t x) const
std::vector< double >	GetTime () const
std::vector< double >	GetMeasurements () const
void	SetTDC (Float_t val1, Float_t val2)
void	Print () const
void	Dist (Float_t x, Float_t &lpos, Float_t &lneg) const
Double_t	Resol (Double_t x) const
void	setInvalid ()
void	setIsValid ()
bool	isValid () const
Public Member Functions inherited from SHiP::DetectorHit
	DetectorHit ()
	DetectorHit (Int_t detID, Float_t digi)
	~DetectorHit () override=default
Double_t	GetDigi () const
Int_t	GetDetectorID () const
void	SetDigi (Float_t d)
void	SetDetectorID (Int_t detID)
void	Print (const Option_t *opt="") const override

Private Member Functions
	ClassDef (TimeDetHit, 4)

Private Attributes
Bool_t	flag {true}
	flag
Float_t	t_1
Float_t	t_2
	TDC on both sides.

Static Private Attributes
static constexpr Double_t	v_drift = 15.
static constexpr Double_t	par [4] = {0.0272814, 109.303, 0, 0.0539487}

Additional Inherited Members
Protected Member Functions inherited from SHiP::DetectorHit
	ClassDefOverride (SHiP::DetectorHit, 1)
Protected Attributes inherited from SHiP::DetectorHit
Float_t	fdigi
	digitized detector hit
Int_t	fDetectorID
	Detector unique identifier.

Detailed Description

Definition at line 11 of file TimeDetHit.h.

Constructor & Destructor Documentation

TimeDetHit() [1/3]

TimeDetHit::TimeDetHit

(

)

Default constructor

Definition at line 27 of file TimeDetHit.cxx.

: SHiP::DetectorHit() {}

TimeDetHit() [2/3]

TimeDetHit::TimeDetHit	(	TimeDetPoint *	p,
		Double_t	t0
	)

Constructor from TimeDetHit

Parameters

detID	Detector ID
t_1,t_2	TDC on both sides
flag	True/False, in case of pile up

Definition at line 31 of file TimeDetHit.cxx.

                                                   : SHiP::DetectorHit() {
  if (!p) {
    LOG(error) << "TimeDetHit: null TimeDetPoint pointer";
    return;
  }
  fDetectorID = p->GetDetectorID();
  Float_t lpos, lneg;
  Dist(p->GetX(), lpos, lneg);
  Double_t sigma = Resol(lneg);  // in ns
  t_1 = gRandom->Gaus(0, sigma) + lneg / v_drift + t0 + p->GetTime();
  sigma = Resol(lpos);  // in ns
  t_2 = gRandom->Gaus(0, sigma) + lpos / v_drift + t0 + p->GetTime();
}

~TimeDetHit()

TimeDetHit::~TimeDetHit ( )

overridedefault

Destructor

TimeDetHit() [3/3]

TimeDetHit::TimeDetHit ( const TimeDetHit &  point )

default

Copy constructor

Member Function Documentation

ClassDef()

TimeDetHit::ClassDef ( TimeDetHit  , 4    )

private

Dist()

void TimeDetHit::Dist	(	Float_t	x,
		Float_t &	lpos,
		Float_t &	lneg
	)		const

Definition at line 80 of file TimeDetHit.cxx.

                                                                   {
  TGeoNode* node = GetNode();
  auto shape = dynamic_cast<TGeoBBox*>(node->GetVolume()->GetShape());
  TVector3 pos = GetXYZ();
  lpos = TMath::Abs(pos.X() + shape->GetDX() - x);
  lneg = TMath::Abs(pos.X() - shape->GetDX() - x);
}

GetMeasurements()

std::vector< double > TimeDetHit::GetMeasurements

(

)

const

Definition at line 77 of file TimeDetHit.cxx.

{ return {t_1, t_2}; }

GetNode()

TGeoNode * TimeDetHit::GetNode

(

)

const

Definition at line 115 of file TimeDetHit.cxx.

                                    {
  TGeoNavigator* nav = gGeoManager->GetCurrentNavigator();
  TString path = "/Timing Detector_1/TimeDet_";
  path += fDetectorID;
  nav->cd(path);
  return nav->GetCurrentNode();
}

GetTime() [1/2]

std::vector< double > TimeDetHit::GetTime

(

)

const

Definition at line 60 of file TimeDetHit.cxx.

                                            {
  TGeoBBox* shape =
      dynamic_cast<TGeoBBox*>(gGeoManager->GetVolume("TimeDet")->GetShape());
  Double_t t0 = (t_1 + t_2) / 2. - shape->GetDX() / v_drift;
  Float_t lpos, lneg;
  lneg = (t_1 - t0) * v_drift;
  lpos = (t_2 - t0) * v_drift;
  Float_t r1 = Resol(lneg);
  Float_t r2 = Resol(lpos);
  Double_t dt = TMath::Sqrt(r1 * r1 + r2 * r2);
  return {t0, dt};
}

GetTime() [2/2]

std::vector< double > TimeDetHit::GetTime

(

Double_t

x

)

const

Definition at line 46 of file TimeDetHit.cxx.

                                                      {
  // calculate distance to left and right end
  Float_t lpos, lneg;
  Dist(x, lpos, lneg);
  Double_t r = Resol(lneg);
  Double_t w1 = 1. / (r * r);
  r = Resol(lpos);
  Double_t w2 = 1. / (r * r);
  Double_t dt = 1. / TMath::Sqrt(w1 + w2);
  Double_t t =
      ((t_1 - lneg / v_drift) * w1 + (t_2 - lpos / v_drift) * w2) / (w1 + w2);
  return {t, dt};
}

GetX()

Double_t TimeDetHit::GetX

(

)

const

Accessors

Definition at line 100 of file TimeDetHit.cxx.

                                {
  TVector3 pos = GetXYZ();
  return pos.X();
}

GetXYZ()

TVector3 TimeDetHit::GetXYZ

(

)

const

Definition at line 88 of file TimeDetHit.cxx.

                                  {
  TGeoNavigator* nav = gGeoManager->GetCurrentNavigator();
  TGeoNode* node = GetNode();
  auto shape = dynamic_cast<TGeoBBox*>(node->GetVolume()->GetShape());
  Double_t origin[3] = {shape->GetOrigin()[0], shape->GetOrigin()[1],
                        shape->GetOrigin()[2]};
  Double_t master[3] = {0, 0, 0};
  nav->LocalToMaster(origin, master);
  TVector3 pos = TVector3(master[0], master[1], master[2]);
  return pos;
}

GetY()

Double_t TimeDetHit::GetY

(

)

const

Definition at line 105 of file TimeDetHit.cxx.

                                {
  TVector3 pos = GetXYZ();
  return pos.Y();
}

GetZ()

Double_t TimeDetHit::GetZ

(

)

const

Definition at line 110 of file TimeDetHit.cxx.

                                {
  TVector3 pos = GetXYZ();
  return pos.Z();
}

isValid()

bool TimeDetHit::isValid ( ) const

inline

Definition at line 53 of file TimeDetHit.h.

{ return flag; }

operator=()

TimeDetHit & TimeDetHit::operator= ( const TimeDetHit &  point )

default

Print()

void TimeDetHit::Print

(

)

const

Definition at line 124 of file TimeDetHit.cxx.

                             {
  cout << "-I- TimeDetHit: TimeDet hit " << " in detector " << fDetectorID
       << endl;
  cout << "  TDC left " << t_1 << " ns   TDC right " << t_2 << " ns" << endl;
}

Resol()

Double_t TimeDetHit::Resol

(

Double_t

x

)

const

Definition at line 73 of file TimeDetHit.cxx.

                                           {
  return par[0] * TMath::Exp((x - par[2]) / par[1]) + par[3];
}

setInvalid()

void TimeDetHit::setInvalid ( )

inline

Definition at line 51 of file TimeDetHit.h.

{ flag = false; }

setIsValid()

void TimeDetHit::setIsValid ( )

inline

Definition at line 52 of file TimeDetHit.h.

{ flag = true; }

SetTDC()

void TimeDetHit::SetTDC ( Float_t  val1, Float_t  val2  )

inline

Modifier

Definition at line 40 of file TimeDetHit.h.

                                          {
    t_1 = val1;
    t_2 = val2;
  }

Member Data Documentation

flag

Bool_t TimeDetHit::flag {true}

private

flag

Definition at line 59 of file TimeDetHit.h.

par

constexpr Double_t TimeDetHit::par[4] = {0.0272814, 109.303, 0, 0.0539487}

staticconstexprprivate

Definition at line 57 of file TimeDetHit.h.

t_1

Float_t TimeDetHit::t_1

private

Definition at line 60 of file TimeDetHit.h.

t_2

Float_t TimeDetHit::t_2

private

TDC on both sides.

Definition at line 60 of file TimeDetHit.h.

v_drift

constexpr Double_t TimeDetHit::v_drift = 15.

staticconstexprprivate

Definition at line 56 of file TimeDetHit.h.

---

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

• TimeDet/TimeDetHit.h
• TimeDet/TimeDetHit.cxx