Tool class to calculate the non-ionising radiation damage on the STS silicon. More...

#include <CbmStsRadTool.h>

Inheritance diagram for CbmStsRadTool:

Collaboration diagram for CbmStsRadTool:

Public Member Functions
	CbmStsRadTool ()
	Constructor.
virtual	~CbmStsRadTool ()
	Destructor.
Double_t	GetLeakageCurrent (Double_t fluence, Double_t volume, Double_t temperature)
	Get leakage current.
Double_t	GetNiel (Int_t type, Double_t energy)
	Get NIEL factor.
Double_t	GetVfd (Double_t fluence, Double_t d)
	Get full depletion voltage.
	CbmStsRadTool ()
	Constructor.
virtual	~CbmStsRadTool ()
	Destructor.
Double_t	GetLeakageCurrent (Double_t fluence, Double_t volume, Double_t temperature)
	Get leakage current.
Double_t	GetNiel (Int_t type, Double_t energy)
	Get NIEL factor.
Double_t	GetVfd (Double_t fluence, Double_t d)
	Get full depletion voltage.
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	Clear (Option_t *="")
virtual TObject *	Clone (const char *newname="") const
virtual Int_t	Compare (const TObject *obj) const
virtual void	Copy (TObject &object) 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 const char *	GetName () const
virtual char *	GetObjectInfo (Int_t px, Int_t py) const
virtual Option_t *	GetOption () const
virtual const char *	GetTitle () const
virtual UInt_t	GetUniqueID () const
virtual Bool_t	HandleTimer (TTimer *timer)
virtual ULong_t	Hash () const
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)
virtual TClass *	IsA () const
Bool_t	IsDestructed () const
virtual Bool_t	IsEqual (const TObject *obj) const
virtual Bool_t	IsFolder () const
R__ALWAYS_INLINE Bool_t	IsOnHeap () const
virtual Bool_t	IsSortable () const
R__ALWAYS_INLINE Bool_t	IsZombie () const
virtual void	ls (Option_t *option="") 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 void	Print (Option_t *option="") const
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)
virtual void	Streamer (TBuffer &)
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
void	Init ()
	Initialisation.
void	ReadData (const char *file, map< Double_t, Double_t > &map)
	Read data from file.
void	Init ()
	Initialisation.
void	ReadData (const char *file, map< Double_t, Double_t > &map)
	Read data from file.

Private Attributes
map< Double_t, Double_t >	niel_neutron
	Tables of NIEL factors as fnct.
map< Double_t, Double_t >	niel_proton
map< Double_t, Double_t >	niel_pion
map< Double_t, Double_t >	niel_electron
Double_t	fIAlpha
	Proportionality constant of leakage current and fluence.
Double_t	fEGap0
	Constants for temperature dependence of leakage current.
Double_t	fEGapAlpha
Double_t	fEGapBeta
Double_t	fNeff0
	Constants for effective doping concentration as function of fluence.
Double_t	fNeffC
Double_t	fNeffGc
Double_t	fEpsilon
	Permittivity of Silicon.

Additional Inherited Members
Public Types inherited from TObject
enum	EDeprecatedStatusBits
enum	EStatusBits
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 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 TObject
	kOnlyPrepStep

Detailed Description

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

Date: 6 December 2011

This class provides some functionality to calculate the effects of non-ionising irradiation on Silicon.

While the calculation of the NIEL factor is independent of the type of silicon used, those of leakage current and full depletion voltage depend on the specific silicon properties (effective doping concentration 9 x 10^11 cm^-3).

Definition at line 29 of file CbmStsRadTool.h.

Constructor & Destructor Documentation

◆ CbmStsRadTool() [1/2]

CbmStsRadTool::CbmStsRadTool ( )

Definition at line 15 of file CbmStsRadTool.cxx.

References TObject::TObject(), fEGap0, fEGapAlpha, fEGapBeta, fEpsilon, fIAlpha, fNeff0, fNeffC, fNeffGc, Init(), niel_electron, niel_neutron, niel_pion, and niel_proton.

Referenced by ReadData().

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◆ ~CbmStsRadTool() [1/2]

CbmStsRadTool::~CbmStsRadTool ( )

virtual

Definition at line 35 of file CbmStsRadTool.cxx.

◆ CbmStsRadTool() [2/2]

CbmStsRadTool::CbmStsRadTool ( )

◆ ~CbmStsRadTool() [2/2]

virtual CbmStsRadTool::~CbmStsRadTool ( )

virtual

Member Function Documentation

◆ GetLeakageCurrent() [1/2]

Double_t CbmStsRadTool::GetLeakageCurrent	(	Double_t	fluence,
		Double_t	volume,
		Double_t	temperature )

Parameters

[in]	fluence	Fluence [neq/cm^2]
[in]	volume	Volume [cm^3]
[in]	temperature	Temperature [K]

Returns: Leakage current [A]

Calculates the leakage current in Silicon as function of irradiation fluence, volume and temperature.

Formulae provided by S. Chatterji.

Definition at line 39 of file CbmStsRadTool.cxx.

References TMath::Exp(), fEGap0, fEGapAlpha, fEGapBeta, fIAlpha, TMath::K(), and TMath::Qe().

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◆ GetLeakageCurrent() [2/2]

Double_t CbmStsRadTool::GetLeakageCurrent	(	Double_t	fluence,
		Double_t	volume,
		Double_t	temperature )

Parameters

[in]	fluence	Fluence [neq/cm^2]
[in]	volume	Volume [cm^3]
[in]	temperature	Temperature [K]

Returns: Leakage current [A]

Calculates the leakage current in Silicon as function of irradiation fluence, volume and temperature.

Formulae provided by S. Chatterji.

◆ GetNiel() [1/2]

Double_t CbmStsRadTool::GetNiel	(	Int_t	type,
		Double_t	energy )

Parameters

type	Particle Id (PDG code)
energy	Energy in GeV

Returns: NIEL factor

Calculates the NIEL factor for a given particle type and energy from interpolation of the values tabulated in http://sesam.desy.de/members/gunnar/Si-dfuncs.htm

Will return 0 for particle types other than proton, neutron, pion or electron, or if the energy is below the lowest tabulated value. Will return an asymptotic value if the energy is above the highest tabulated value.

Definition at line 60 of file CbmStsRadTool.cxx.

References TMath::Abs(), niel_electron, niel_neutron, niel_pion, niel_proton, and v.

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◆ GetNiel() [2/2]

Double_t CbmStsRadTool::GetNiel	(	Int_t	type,
		Double_t	energy )

Parameters

type	Particle Id (PDG code)
energy	Energy in GeV

Returns: NIEL factor

Calculates the NIEL factor for a given particle type and energy from interpolation of the values tabulated in http://sesam.desy.de/members/gunnar/Si-dfuncs.htm

Will return 0 for particle types other than proton, neutron, pion or electron, or if the energy is below the lowest tabulated value. Will return an asymptotic value if the energy is above the highest tabulated value.

◆ GetVfd() [1/2]

Double_t CbmStsRadTool::GetVfd	(	Double_t	fluence,
		Double_t	d )

Parameters

fluence	Fluence [neq/cm^2]
d	Thickness [cm]

Returns: Full depletion voltage [V]

Calculates the full depletion voltage of Silicon as function of non-ionising dose and thickness.

Formulae and values provided by S. Chatterji.

Definition at line 136 of file CbmStsRadTool.cxx.

References d, TMath::Exp(), fEpsilon, fNeff0, fNeffC, fNeffGc, and TMath::Qe().

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◆ GetVfd() [2/2]

Double_t CbmStsRadTool::GetVfd	(	Double_t	fluence,
		Double_t	d )

Parameters

fluence	Fluence [neq/cm^2]
d	Thickness [cm]

Returns: Full depletion voltage [V]

Calculates the full depletion voltage of Silicon as function of non-ionising dose and thickness.

Formulae and values provided by S. Chatterji.

References d, fEGap0, fEGapAlpha, fEGapBeta, fEpsilon, fIAlpha, fNeff0, fNeffC, fNeffGc, niel_electron, niel_neutron, niel_pion, and niel_proton.

◆ Init() [1/2]

void CbmStsRadTool::Init ( )

private

Reads in tabulated NIEL factors from file and sets proper constants for Silicon.

Definition at line 152 of file CbmStsRadTool.cxx.

References fEGap0, fEGapAlpha, fEGapBeta, fEpsilon, fIAlpha, fNeff0, fNeffC, fNeffGc, niel_electron, niel_neutron, niel_pion, niel_proton, and ReadData().

Referenced by CbmStsRadTool().

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◆ Init() [2/2]

void CbmStsRadTool::Init ( )

private

Reads in tabulated NIEL factors from file and sets proper constants for Silicon.

◆ ReadData() [1/2]

void CbmStsRadTool::ReadData	(	const char *	file,
		map< Double_t, Double_t > &	map )

private

Parameters

file	File name (in directory input)
map	Map to be filled

Definition at line 186 of file CbmStsRadTool.cxx.

References TString::Data(), TObject::Fatal(), and v.

Referenced by Init().

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◆ ReadData() [2/2]

void CbmStsRadTool::ReadData	(	const char *	file,
		map< Double_t, Double_t > &	map )

private

Parameters

file	File name (in directory input)
map	Map to be filled

References CbmStsRadTool().

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Member Data Documentation

◆ fEGap0

Double_t CbmStsRadTool::fEGap0

private

Definition at line 91 of file CbmStsRadTool.h.

Referenced by CbmStsRadTool(), GetLeakageCurrent(), GetVfd(), and Init().

◆ fEGapAlpha

Double_t CbmStsRadTool::fEGapAlpha

private

Definition at line 92 of file CbmStsRadTool.h.

Referenced by CbmStsRadTool(), GetLeakageCurrent(), GetVfd(), and Init().

◆ fEGapBeta

Double_t CbmStsRadTool::fEGapBeta

private

Definition at line 93 of file CbmStsRadTool.h.

Referenced by CbmStsRadTool(), GetLeakageCurrent(), GetVfd(), and Init().

◆ fEpsilon

Double_t CbmStsRadTool::fEpsilon

private

Definition at line 103 of file CbmStsRadTool.h.

Referenced by CbmStsRadTool(), GetVfd(), and Init().

◆ fIAlpha

Double_t CbmStsRadTool::fIAlpha

private

Definition at line 88 of file CbmStsRadTool.h.

Referenced by CbmStsRadTool(), GetLeakageCurrent(), GetVfd(), and Init().

◆ fNeff0

Double_t CbmStsRadTool::fNeff0

private

Definition at line 98 of file CbmStsRadTool.h.

Referenced by CbmStsRadTool(), GetVfd(), and Init().

◆ fNeffC

Double_t CbmStsRadTool::fNeffC

private

Definition at line 99 of file CbmStsRadTool.h.

Referenced by CbmStsRadTool(), GetVfd(), and Init().

◆ fNeffGc

Double_t CbmStsRadTool::fNeffGc

private

Definition at line 100 of file CbmStsRadTool.h.

Referenced by CbmStsRadTool(), GetVfd(), and Init().

◆ niel_electron

map< Double_t, Double_t > CbmStsRadTool::niel_electron

private

Definition at line 85 of file CbmStsRadTool.h.

Referenced by CbmStsRadTool(), GetNiel(), GetVfd(), and Init().

◆ niel_neutron

map< Double_t, Double_t > CbmStsRadTool::niel_neutron

private

of energy

Definition at line 82 of file CbmStsRadTool.h.

Referenced by CbmStsRadTool(), GetNiel(), GetVfd(), and Init().

◆ niel_pion

map< Double_t, Double_t > CbmStsRadTool::niel_pion

private

Definition at line 84 of file CbmStsRadTool.h.

Referenced by CbmStsRadTool(), GetNiel(), GetVfd(), and Init().

◆ niel_proton

map< Double_t, Double_t > CbmStsRadTool::niel_proton

private

Definition at line 83 of file CbmStsRadTool.h.

Referenced by CbmStsRadTool(), GetNiel(), GetVfd(), and Init().

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

detectors/sts/CbmStsRadTool.h
install/include/CbmStsRadTool.h
detectors/sts/CbmStsRadTool.cxx

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ CbmStsRadTool() [1/2]

◆ ~CbmStsRadTool() [1/2]

◆ CbmStsRadTool() [2/2]

◆ ~CbmStsRadTool() [2/2]

Member Function Documentation

◆ GetLeakageCurrent() [1/2]

◆ GetLeakageCurrent() [2/2]

◆ GetNiel() [1/2]

◆ GetNiel() [2/2]

◆ GetVfd() [1/2]

◆ GetVfd() [2/2]

◆ Init() [1/2]

◆ Init() [2/2]

◆ ReadData() [1/2]

◆ ReadData() [2/2]

Member Data Documentation

◆ fEGap0

◆ fEGapAlpha

◆ fEGapBeta

◆ fEpsilon

◆ fIAlpha

◆ fNeff0

◆ fNeffC

◆ fNeffGc

◆ niel_electron

◆ niel_neutron

◆ niel_pion

◆ niel_proton