cbm::algo::trd::HitFinder2D Class Reference

Cluster finding and hit reconstruction algorithms for the TRD(2D) module. More...

#include <HitFinder2D.h>

Collaboration diagram for cbm::algo::trd::HitFinder2D:

Public Types
typedef std::pair< Hit, std::vector< DigiRec > >	resultType

Public Member Functions
	HitFinder2D ()
	Default constructor.
	HitFinder2D (HitFinder2DModPar params)
	Constructor with placement.
virtual	~HitFinder2D ()
std::vector< resultType >	operator() (std::vector< Cluster2D > *clusters)
	Steering routine for building hits.
std::pair< int, HitFactory2D >	ProjectDigis (const Cluster2D *cluster)
bool	BuildHit (Hit *h, HitFactory2D &hitF)
	Implement topologic cuts for hit merging.
void	SetHitTimeOffset (int dt)
	Time offset to synchronize TRD2D hits to the rest of detectors.

Private Member Functions
	HitFinder2D (const HitFinder2D &ref)
const HitFinder2D &	operator= (const HitFinder2D &ref)
Hit	MakeHit (int cId, const Cluster2D *cluster)
int	GetPadRowCol (int address, int &c)
	Addressing ASIC on module based on id.
void	CalibrateHit (Hit *h, const double dx, const double dy, const double edx, const double edy, const double edt, const double time, const double tdrift, const double eloss, const HitFactory2D &hitF)

Private Attributes
const float	fClk = CbmTrdDigi::Clk(CbmTrdDigi::eCbmTrdAsicType::kFASP)
HitFinder2DModPar	fParams
	Parameter container.
int	fHitTimeOff = 0

Static Private Attributes
static Double_t	fgDT [3] = {4.181e-6, 1586, 24}
	hit time offset for synchronization

Detailed Description

Cluster finding and hit reconstruction algorithms for the TRD(2D) module.

Author

Alexandru Bercucic aberc.nosp@m.uci@.nosp@m.niham.nosp@m..nip.nosp@m.ne.ro

Since

01.02.2019

Date

01.10.2021

Extend the TRD module reconstructor for the particular case of inner TRD-2D modules. The class is a collection of algorithms to :

• identify time and spatially correlated digis and build clusters
• identify the type of clusters and apply further merging/deconvolution
• apply FEE (channel gain, baseline) and detector (energy gain, maps, etc) calibration
• steer the calculation of hit 4D parameters (x, y, t, E)

Definition at line 42 of file HitFinder2D.h.

Member Typedef Documentation

resultType

std::pair<Hit, std::vector<DigiRec> > cbm::algo::trd::HitFinder2D::resultType

Definition at line 44 of file HitFinder2D.h.

Constructor & Destructor Documentation

HitFinder2D() [1/3]

cbm::algo::trd::HitFinder2D::HitFinder2D ( )

inline

Default constructor.

Definition at line 47 of file HitFinder2D.h.

HitFinder2D() [2/3]

cbm::algo::trd::HitFinder2D::HitFinder2D

(

HitFinder2DModPar

params

)

Constructor with placement.

Definition at line 21 of file HitFinder2D.cxx.

~HitFinder2D()

virtual cbm::algo::trd::HitFinder2D::~HitFinder2D ( )

inlinevirtual

Definition at line 52 of file HitFinder2D.h.

HitFinder2D() [3/3]

cbm::algo::trd::HitFinder2D::HitFinder2D ( const HitFinder2D & ref )

private

Member Function Documentation

BuildHit()

bool cbm::algo::trd::HitFinder2D::BuildHit	(	Hit *	h,
		HitFactory2D &	hitF )

Implement topologic cuts for hit merging.

Returns

index of anode wire wrt to boundary or 0 if check fails

Definition at line 55 of file HitFinder2D.cxx.

References CalibrateHit(), cbm::algo::trd::HitFactory2D::CorrectPosition(), fClk, fgDT, fParams, cbm::algo::trd::HitFactory2D::fSignal, cbm::algo::trd::HitFactory2D::GetDxDy(), cbm::algo::trd::HitFactory2D::GetHitClass(), cbm::algo::trd::HitFactory2D::GetXcorr(), NANODE, cbm::algo::trd::HitFinder2DModPar::padSizeX, cbm::algo::trd::HitFinder2DModPar::padSizeY, cbm::algo::trd::HitFactory2D::signal::s, cbm::algo::trd::HitFactory2D::signal::t, cbm::algo::trd::HitFactory2D::signal::x, and cbm::algo::trd::HitFactory2D::signal::xe.

Referenced by MakeHit().

CalibrateHit()

void cbm::algo::trd::HitFinder2D::CalibrateHit ( Hit * h, const double dx, const double dy, const double edx, const double edy, const double edt, const double time, const double tdrift, const double eloss, const HitFactory2D & hitF )

private

Definition at line 101 of file HitFinder2D.cxx.

References fClk, fHitTimeOff, fParams, cbm::algo::trd::HitFactory2D::HasOvf(), cbm::algo::trd::HitFactory2D::IsMaxTilt(), cbm::algo::trd::HitFinder2DModPar::rotation, cbm::algo::trd::HitFinder2DModPar::rowPar, cbm::algo::trd::HitFinder2DModPar::translation, cbm::algo::trd::HitFactory2D::vcM, cbm::algo::trd::HitFactory2D::vrM, and cbm::algo::trd::HitFactory2D::vt0.

Referenced by BuildHit().

GetPadRowCol()

int cbm::algo::trd::HitFinder2D::GetPadRowCol ( int address, int & c )

inlineprivate

Addressing ASIC on module based on id.

Parameters

[in]

id

module wise ASIC identifier

Returns

ASIC address within experiment

Definition at line 274 of file HitFinder2D.cxx.

References fParams, and cbm::algo::trd::HitFinder2DModPar::rowPar.

Referenced by ProjectDigis().

MakeHit()

Hit cbm::algo::trd::HitFinder2D::MakeHit ( int cId, const Cluster2D * cluster )

private

Definition at line 39 of file HitFinder2D.cxx.

References cbm::algo::trd::HitFinder2DModPar::address, BuildHit(), fParams, cbm::algo::trd::Cluster2D::GetRecDigis(), ProjectDigis(), cbm::algo::trd::Hit::SetAddress(), and cbm::algo::trd::Hit::SetRefId().

Referenced by operator()().

operator()()

std::vector< trd::HitFinder2D::resultType > cbm::algo::trd::HitFinder2D::operator()

(

std::vector< Cluster2D > *

clusters

)

Steering routine for building hits.

Definition at line 24 of file HitFinder2D.cxx.

References MakeHit().

operator=()

const HitFinder2D & cbm::algo::trd::HitFinder2D::operator= ( const HitFinder2D & ref )

private

ProjectDigis()

std::pair< int, HitFactory2D > cbm::algo::trd::HitFinder2D::ProjectDigis

(

const Cluster2D *

cluster

)

Load digis information in working vectors Digis are represented in the normal coordinate system of (pad width [pw], DAQ time [clk], signal [ADC chs]) with rectangular signals at integer positions.

Definition at line 123 of file HitFinder2D.cxx.

References fParams, cbm::algo::trd::HitFactory2D::fSignal, CbmTrdDigi::GetAddressChannel(), GetPadRowCol(), cbm::algo::trd::Cluster2D::GetRecDigis(), cbm::algo::trd::DigiRec::GetRectCharge(), cbm::algo::trd::DigiRec::GetRectTime(), cbm::algo::trd::DigiRec::GetTiltCharge(), cbm::algo::trd::DigiRec::GetTiltTime(), CbmTrdDigi::GetTimeDAQ(), cbm::algo::trd::DigiRec::HasRectOvf(), cbm::algo::trd::DigiRec::HasTiltOvf(), L_, max(), cbm::algo::trd::HitFactory2D::reset(), cbm::algo::trd::HitFinder2DModPar::rowPar, cbm::algo::trd::HitFactory2D::SetBiasX(), cbm::algo::trd::HitFactory2D::SetBiasY(), cbm::algo::trd::HitFactory2D::SetLeftHit(), cbm::algo::trd::HitFactory2D::SetLeftSgn(), cbm::algo::trd::HitFactory2D::SetMaxTilt(), cbm::algo::trd::HitFactory2D::SetOvf(), cbm::algo::trd::HitFactory2D::SetSymmHit(), cbm::algo::trd::HitFactory2D::vcM, cbm::algo::trd::HitFactory2D::viM, cbm::algo::trd::HitFactory2D::vrM, and cbm::algo::trd::HitFactory2D::vt0.

Referenced by MakeHit().

SetHitTimeOffset()

void cbm::algo::trd::HitFinder2D::SetHitTimeOffset ( int dt )

inline

Time offset to synchronize TRD2D hits to the rest of detectors.

Parameters

dt	offset in [ns]

Definition at line 66 of file HitFinder2D.h.

References fHitTimeOff.

Member Data Documentation

fClk

const float cbm::algo::trd::HitFinder2D::fClk = CbmTrdDigi::Clk(CbmTrdDigi::eCbmTrdAsicType::kFASP)

private

Definition at line 74 of file HitFinder2D.h.

Referenced by BuildHit(), and CalibrateHit().

fgDT

double cbm::algo::trd::HitFinder2D::fgDT = {4.181e-6, 1586, 24}

staticprivate

hit time offset for synchronization

Definition at line 89 of file HitFinder2D.h.

Referenced by BuildHit().

fHitTimeOff

int cbm::algo::trd::HitFinder2D::fHitTimeOff = 0

private

Definition at line 87 of file HitFinder2D.h.

Referenced by CalibrateHit(), and SetHitTimeOffset().

fParams

HitFinder2DModPar cbm::algo::trd::HitFinder2D::fParams

private

Parameter container.

Definition at line 76 of file HitFinder2D.h.

Referenced by BuildHit(), CalibrateHit(), GetPadRowCol(), MakeHit(), and ProjectDigis().

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

• HitFinder2D.h
• HitFinder2D.cxx