Class describing double-sided silicon strip sensors. More...

#include <CbmStsSensorTypeDssd.h>

Inheritance diagram for CbmStsSensorTypeDssd:

Collaboration diagram for CbmStsSensorTypeDssd:

Public Member Functions
	CbmStsSensorTypeDssd ()
	Constructor.
virtual	~CbmStsSensorTypeDssd ()
	Destructor.
virtual void	Print (Option_t *opt="") const
	Print parameters.
virtual void	ProcessPoint (CbmStsSensorPoint point, const CbmStsSenzor sensor) const
	Process a point.
void	SetParameters (Double_t dx, Double_t dy, Double_t dz, Int_t nStripsF, Int_t nStripsB, Double_t stereoF, Double_t stereoB)
	Set the parameters.
Public Member Functions inherited from CbmStsSensorType
	CbmStsSensorType ()
	Constructor.
virtual	~CbmStsSensorType ()
	Destructor.
Int_t	GetTypeId () const
	Type identifier.
Public Member Functions inherited from TNamed
	TNamed ()
	TNamed (const char name, const char title)
	TNamed (const TNamed &named)
	TNamed (const TString &name, const TString &title)
virtual	~TNamed ()
void	Clear (Option_t *option="") override
TObject *	Clone (const char *newname="") const override
Int_t	Compare (const TObject *obj) const override
void	Copy (TObject &named) const override
virtual void	FillBuffer (char *&buffer)
const char *	GetName () const override
const char *	GetTitle () const override
ULong_t	Hash () const override
TClass *	IsA () const override
Bool_t	IsSortable () const override
void	ls (Option_t *option="") const override
TNamed &	operator= (const TNamed &rhs)
void	Print (Option_t *option="") const override
virtual void	SetName (const char *name)
virtual void	SetNameTitle (const char name, const char title)
virtual void	SetTitle (const char *title="")
virtual Int_t	Sizeof () const
void	Streamer (TBuffer &) override
void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
Public Member Functions inherited from TObject
	TObject ()
	TObject (const TObject &object)
virtual	~TObject ()
void	AbstractMethod (const char *method) const
virtual void	AppendPad (Option_t *option="")
virtual void	Browse (TBrowser *b)
ULong_t	CheckedHash ()
virtual const char *	ClassName () const
virtual void	Delete (Option_t *option="")
virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
virtual void	Draw (Option_t *option="")
virtual void	DrawClass () const
virtual TObject *	DrawClone (Option_t *option="") const
virtual void	Dump () const
virtual void	Error (const char method, const char msgfmt,...) const
virtual void	Execute (const char method, const char params, Int_t *error=nullptr)
virtual void	Execute (TMethod method, TObjArray params, Int_t *error=nullptr)
virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
virtual void	Fatal (const char method, const char msgfmt,...) const
virtual TObject *	FindObject (const char *name) const
virtual TObject *	FindObject (const TObject *obj) const
virtual Option_t *	GetDrawOption () const
virtual const char *	GetIconName () const
virtual char *	GetObjectInfo (Int_t px, Int_t py) const
virtual Option_t *	GetOption () const
virtual UInt_t	GetUniqueID () const
virtual Bool_t	HandleTimer (TTimer *timer)
Bool_t	HasInconsistentHash () const
virtual void	Info (const char method, const char msgfmt,...) const
virtual Bool_t	InheritsFrom (const char *classname) const
virtual Bool_t	InheritsFrom (const TClass *cl) const
virtual void	Inspect () const
void	InvertBit (UInt_t f)
Bool_t	IsDestructed () const
virtual Bool_t	IsEqual (const TObject *obj) const
virtual Bool_t	IsFolder () const
R__ALWAYS_INLINE Bool_t	IsOnHeap () const
R__ALWAYS_INLINE Bool_t	IsZombie () const
void	MayNotUse (const char *method) const
virtual Bool_t	Notify ()
void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
void	operator delete (void *ptr)
void	operator delete (void ptr, void vp)
void	operator delete[] (void *ptr)
void	operator delete[] (void ptr, void vp)
void *	operator new (size_t sz)
void *	operator new (size_t sz, void *vp)
void *	operator new[] (size_t sz)
void *	operator new[] (size_t sz, void *vp)
TObject &	operator= (const TObject &rhs)
virtual void	Paint (Option_t *option="")
virtual void	Pop ()
virtual Int_t	Read (const char *name)
virtual void	RecursiveRemove (TObject *obj)
void	ResetBit (UInt_t f)
virtual void	SaveAs (const char filename="", Option_t option="") const
virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
void	SetBit (UInt_t f)
void	SetBit (UInt_t f, Bool_t set)
virtual void	SetDrawOption (Option_t *option="")
virtual void	SetUniqueID (UInt_t uid)
void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
virtual void	SysError (const char method, const char msgfmt,...) const
R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const
Int_t	TestBits (UInt_t f) const
virtual void	UseCurrentStyle ()
virtual void	Warning (const char method, const char msgfmt,...) const
virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0)
virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const

Private Member Functions
Int_t	GetModuleChannel (Int_t strip, Int_t side, Int_t sensorId) const
	Shift in number of strips from bottom to top.
void	GetStrip (Int_t channel, Int_t sensorId, Int_t &strip, Int_t &side)
	Get strip and side from module channel.
void	ProduceCharge (CbmStsSensorPoint point, Int_t side, const CbmStsSenzor sensor) const
	Produce charge on front or back side from a CbmStsPoint.
void	RegisterCharge (const CbmStsSenzor *sensor, Int_t side, Int_t strip, Double_t charge, Double_t time) const
	Register produced charge in one strip.
Bool_t	SelfTest ()
	Test the consistent implementation of GetModuleChannel and GetStrip.

Private Attributes
Double_t	fDx
	Dimension of active area in x [cm].
Double_t	fDy
	Dimension of active area in y [cm].
Double_t	fDz
	Thickness in z [cm].
Int_t	fNofStrips [2]
	Number of strips on front/back side.
Double_t	fStereo [2]
	Stereo angle front/back side [degrees].
Bool_t	fIsSet
	Flag whether parameters are set.
Double_t	fPitch [2]
	Temporary variables to avoid frequent calculations.
Double_t	fCosStereo [2]
	Strip pitch front/back side [cm].
Double_t	fSinStereo [2]
	cos of stereo angle front/back side
Int_t	fStripShift [2]
	sin if stereo angle front/back side

Additional Inherited Members
Public Types inherited from TObject
enum	EDeprecatedStatusBits
enum	EStatusBits
Static Public Member Functions inherited from TNamed
static TClass *	Class ()
static const char *	Class_Name ()
static constexpr Version_t	Class_Version ()
static const char *	DeclFileName ()
Static Public Member Functions inherited from TObject
static TClass *	Class ()
static const char *	Class_Name ()
static constexpr Version_t	Class_Version ()
static const char *	DeclFileName ()
static Longptr_t	GetDtorOnly ()
static Bool_t	GetObjectStat ()
static void	SetDtorOnly (void *obj)
static void	SetObjectStat (Bool_t stat)
Public Attributes inherited from TObject
	kIsOnHeap
	kNotDeleted
	kZombie
	kInconsistent
	kBitMask
	kSingleKey
	kOverwrite
	kWriteDelete
	kObjInCanvas
	kCanDelete
	kMustCleanup
	kIsReferenced
	kHasUUID
	kCannotPick
	kNoContextMenu
	kInvalidObject
Protected Member Functions inherited from TNamed
void	SavePrimitiveNameTitle (std::ostream &out, const char *variable_name)
Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const
void	MakeZombie ()
Static Protected Member Functions inherited from TObject
static void	SavePrimitiveConstructor (std::ostream &out, TClass cl, const char variable_name, const char *constructor_agrs="", Bool_t empty_line=kTRUE)
static void	SavePrimitiveDraw (std::ostream &out, const char variable_name, Option_t option=nullptr)
static TString	SavePrimitiveVector (std::ostream &out, const char prefix, Int_t len, Double_t arr, Bool_t empty_line=kFALSE)
Protected Attributes inherited from TNamed
TString	fName
TString	fTitle
Protected Attributes inherited from TObject
	kOnlyPrepStep

Detailed Description

Author: V.Friese v.fri.nosp@m.ese@.nosp@m.gsi.d.nosp@m.e

Version: 1.0

This class describes the response of double-sided silicon strip sensors in the STS. Its free parameters are the dimensions of the active area, the number of strips at the top (readout) edge and the stereo angles on front and back side.

The active area does not necessarily coincide with the geometric dimensions of the sensor. It is, however, centred in the latter, meaning that the width of inactive regions (guard ring) are the same on the left and on the right side and also the same at the top and and the bottom.

The stereo angle is defined with respect to the y (vertical) axis. Readout is performed at the top edge of the sensor. In case of finite stereo angle, the corner strips not reaching the top edge are connected horizontally to the corresponding strip in the other corner.

The response to charged particles is modelled by a uniform charge distribution along the particle trajectory in the active volume, which is projected to the readout edge, where it is discretised on the active strips. The charge is then delivered to the corresponding channel of the readout module (CbmStsModule).

The mapping of strip number and module channel is trivial in the case of just one sensor per module. In case of several daisy-chained sensors, the top-edge strip is vertically connected vertically to the corresponding strip on the bottom edge of the sensor above. This results in an offset of strip number to channel number which depends on the position of the' sensor in the daisy chain. The behaviour is implemented in the methods GetStrip and GetModuleChannel.

Definition at line 47 of file CbmStsSensorTypeDssd.h.

Constructor & Destructor Documentation

◆ CbmStsSensorTypeDssd()

CbmStsSensorTypeDssd::CbmStsSensorTypeDssd ( )

Definition at line 23 of file CbmStsSensorTypeDssd.cxx.

References CbmStsSensorType::CbmStsSensorType(), fCosStereo, fDx, fDy, fDz, fIsSet, fNofStrips, fPitch, fSinStereo, fStereo, and fStripShift.

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◆ ~CbmStsSensorTypeDssd()

virtual CbmStsSensorTypeDssd::~CbmStsSensorTypeDssd ( )

inlinevirtual

Definition at line 55 of file CbmStsSensorTypeDssd.h.

Member Function Documentation

◆ GetModuleChannel()

Int_t CbmStsSensorTypeDssd::GetModuleChannel	(	Int_t	strip,
		Int_t	side,
		Int_t	sensorId ) const

private

Get the readout channel in the module for a given strip and side

Parameters

strip	Strip number
side	Side (0 = front, 1 = back)
sensorId	Index of sensor within module

Returns: Channel number in module

Definition at line 39 of file CbmStsSensorTypeDssd.cxx.

References fNofStrips, and fStripShift.

Referenced by RegisterCharge(), and SelfTest().

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◆ GetStrip()

void CbmStsSensorTypeDssd::GetStrip	(	Int_t	channel,
		Int_t	sensorId,
		Int_t &	strip,
		Int_t &	side )

private

Parameters

[in]	channel	Channel number in module
[in]	sensorId	Sensor index in module
[out]	strip	Strip number in sensor
[out]	side	Sensor side [0 = front, 1 = back]

Definition at line 66 of file CbmStsSensorTypeDssd.cxx.

References fNofStrips, and fStripShift.

Referenced by SelfTest().

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◆ Print()

void CbmStsSensorTypeDssd::Print ( Option_t * opt = "" ) const

virtual

Reimplemented from TObject.

Definition at line 97 of file CbmStsSensorTypeDssd.cxx.

References fDx, fDy, fDz, fNofStrips, fPitch, fStereo, and TNamed::GetName().

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◆ ProcessPoint()

void CbmStsSensorTypeDssd::ProcessPoint	(	CbmStsSensorPoint *	point,
		const CbmStsSenzor *	sensor ) const

virtual

Implements CbmStsSensorType.

Definition at line 110 of file CbmStsSensorTypeDssd.cxx.

References fIsSet, TNamed::fName, and ProduceCharge().

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◆ ProduceCharge()

void CbmStsSensorTypeDssd::ProduceCharge	(	CbmStsSensorPoint *	point,
		Int_t	side,
		const CbmStsSenzor *	sensor ) const

private

Parameters

side	0 = front, 1 = back side

Definition at line 125 of file CbmStsSensorTypeDssd.cxx.

References fCosStereo, fDx, fDy, fIsSet, TMath::FloorNint(), TNamed::fName, fNofStrips, fPitch, fSinStereo, CbmStsSensorPoint::GetELoss(), CbmStsSensorPoint::GetTime(), CbmStsSensorPoint::GetX1(), CbmStsSensorPoint::GetX2(), CbmStsSensorPoint::GetY1(), CbmStsSensorPoint::GetY2(), kPairEnergy, TMath::Max(), TMath::Min(), and RegisterCharge().

Referenced by ProcessPoint().

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◆ RegisterCharge()

void CbmStsSensorTypeDssd::RegisterCharge	(	const CbmStsSenzor *	sensor,
		Int_t	side,
		Int_t	strip,
		Double_t	charge,
		Double_t	time ) const

private

Parameters

side	0 = front, 1 = back
strip	strip number
charge	charge in strip [e]
time	time of registration [ns]

Definition at line 187 of file CbmStsSensorTypeDssd.cxx.

References CbmStsModule::AddSignal(), TNamed::fName, CbmStsSenzor::GetModule(), GetModuleChannel(), and CbmStsSenzor::GetSensorId().

Referenced by ProduceCharge().

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◆ SelfTest()

Bool_t CbmStsSensorTypeDssd::SelfTest ( )

private

The latter should be the reverse of the former.

Returns: kTRUE if successful

Definition at line 207 of file CbmStsSensorTypeDssd.cxx.

References TNamed::fName, fNofStrips, GetModuleChannel(), and GetStrip().

Referenced by SetParameters().

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◆ SetParameters()

void CbmStsSensorTypeDssd::SetParameters	(	Double_t	dx,
		Double_t	dy,
		Double_t	dz,
		Int_t	nStripsF,
		Int_t	nStripsB,
		Double_t	stereoF,
		Double_t	stereoB )

Parameters

dx,dy,dz	Size in x,y,z [cm]
nStripsF,nStripsB	Number of strips on front and back side
stereoF,stereoB	Strip stereo angle front and back side [degrees]

Definition at line 232 of file CbmStsSensorTypeDssd.cxx.

References TMath::Abs(), TMath::Cos(), TMath::DegToRad(), fCosStereo, fDx, fDy, fDz, fIsSet, fNofStrips, fPitch, fSinStereo, fStereo, fStripShift, TMath::Nint(), SelfTest(), and TMath::Sin().

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Member Data Documentation

◆ fCosStereo

Double_t CbmStsSensorTypeDssd::fCosStereo[2]

private

Definition at line 86 of file CbmStsSensorTypeDssd.h.

Referenced by CbmStsSensorTypeDssd(), ProduceCharge(), and SetParameters().

◆ fDx

Double_t CbmStsSensorTypeDssd::fDx

private

Definition at line 77 of file CbmStsSensorTypeDssd.h.

Referenced by CbmStsSensorTypeDssd(), Print(), ProduceCharge(), and SetParameters().

◆ fDy

Double_t CbmStsSensorTypeDssd::fDy

private

Definition at line 78 of file CbmStsSensorTypeDssd.h.

Referenced by CbmStsSensorTypeDssd(), Print(), ProduceCharge(), and SetParameters().

◆ fDz

Double_t CbmStsSensorTypeDssd::fDz

private

Definition at line 79 of file CbmStsSensorTypeDssd.h.

Referenced by CbmStsSensorTypeDssd(), Print(), and SetParameters().

◆ fIsSet

Bool_t CbmStsSensorTypeDssd::fIsSet

private

Definition at line 82 of file CbmStsSensorTypeDssd.h.

Referenced by CbmStsSensorTypeDssd(), ProcessPoint(), ProduceCharge(), and SetParameters().

◆ fNofStrips

Int_t CbmStsSensorTypeDssd::fNofStrips[2]

private

Definition at line 80 of file CbmStsSensorTypeDssd.h.

Referenced by CbmStsSensorTypeDssd(), GetModuleChannel(), GetStrip(), Print(), ProduceCharge(), SelfTest(), and SetParameters().

◆ fPitch

Double_t CbmStsSensorTypeDssd::fPitch[2]

private

Definition at line 85 of file CbmStsSensorTypeDssd.h.

Referenced by CbmStsSensorTypeDssd(), Print(), ProduceCharge(), and SetParameters().

◆ fSinStereo

Double_t CbmStsSensorTypeDssd::fSinStereo[2]

private

Definition at line 87 of file CbmStsSensorTypeDssd.h.

Referenced by CbmStsSensorTypeDssd(), ProduceCharge(), and SetParameters().

◆ fStereo

Double_t CbmStsSensorTypeDssd::fStereo[2]

private

Definition at line 81 of file CbmStsSensorTypeDssd.h.

Referenced by CbmStsSensorTypeDssd(), Print(), and SetParameters().

◆ fStripShift

Int_t CbmStsSensorTypeDssd::fStripShift[2]

private

Definition at line 88 of file CbmStsSensorTypeDssd.h.

Referenced by CbmStsSensorTypeDssd(), GetModuleChannel(), GetStrip(), and SetParameters().

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

detectors/sts/setup/CbmStsSensorTypeDssd.h
detectors/sts/setup/CbmStsSensorTypeDssd.cxx

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ CbmStsSensorTypeDssd()

◆ ~CbmStsSensorTypeDssd()

Member Function Documentation

◆ GetModuleChannel()

◆ GetStrip()

◆ Print()

◆ ProcessPoint()

◆ ProduceCharge()

◆ RegisterCharge()

◆ SelfTest()

◆ SetParameters()

Member Data Documentation

◆ fCosStereo

◆ fDx

◆ fDy

◆ fDz

◆ fIsSet

◆ fNofStrips

◆ fPitch

◆ fSinStereo

◆ fStereo

◆ fStripShift