o2::tpc::ModelGEM Class Reference

#include <ModelGEM.h>

Public Member Functions
	ModelGEM ()
	Constructor.
	~ModelGEM ()=default
	Destructor.
float	getElectronCollectionEfficiency (float elecFieldAbove, float gemPotential, int geom)
float	getElectronExtractionEfficiency (float elecFieldBelow, float gemPotential, int geom)
float	getAbsoluteGain (float gemPotential, int geom)
void	setAbsGainScalingFactor (float absGainScaling)
float	getSingleGainFluctuation (float gemPotential, int geom)
void	setStackProperties (const std::array< int, 4 > &geometry, const std::array< float, 5 > &distance, const std::array< float, 4 > &potential, const std::array< float, 5 > &electricField)
float	getStackEnergyResolution ()
	Calculate the energy resolution for a given GEM stack (defined with setStackProperties)
float	getStackEffectiveGain ()
	Calculate the total effective gain for a given GEM stack (defined with setStackProperties)
void	setAttachment (float attachment)

Detailed Description

Definition at line 109 of file ModelGEM.h.

Constructor & Destructor Documentation

ModelGEM()

ModelGEM::ModelGEM

(

)

Constructor.

Definition at line 22 of file ModelGEM.cxx.

~ModelGEM()

o2::tpc::ModelGEM::~ModelGEM ( )

default

Destructor.

Member Function Documentation

getAbsoluteGain()

float ModelGEM::getAbsoluteGain	(	float	gemPotential,
		int	geom
	)

Get the absolute gain for a given GEM (multiplication inside GEM)

Parameters

gemPotential	GEM potential in Volts
geom	Geometry of the GEM (0 standard, 1 medium, 2 large)

Definition at line 95 of file ModelGEM.cxx.

getElectronCollectionEfficiency()

float ModelGEM::getElectronCollectionEfficiency	(	float	elecFieldAbove,
		float	gemPotential,
		int	geom
	)

Get the electron collection efficiency of the GEM for the a given field ratio

Parameters

elecFieldAbove	Electric field above the GEM in kV/cm
gemPotential	GEM potential in Volts
geom	Geometry of the GEM (0 standard, 1 medium, 2 large)

Definition at line 61 of file ModelGEM.cxx.

getElectronExtractionEfficiency()

float ModelGEM::getElectronExtractionEfficiency	(	float	elecFieldBelow,
		float	gemPotential,
		int	geom
	)

Get the electron extraction efficiency of the GEM for the a given field ratio

Parameters

elecFieldBelow	Electric field below the GEM in kV/cm
gemPotential	GEM potential in Volts
geom	Geometry of the GEM (0 standard, 1 medium, 2 large)

Definition at line 78 of file ModelGEM.cxx.

getSingleGainFluctuation()

float ModelGEM::getSingleGainFluctuation	(	float	gemPotential,
		int	geom
	)

Get the single gain fluctuation

Parameters

gemPotential	GEM potential in Volts
geom	Geometry of the GEM (0 standard, 1 medium, 2 large)

Definition at line 101 of file ModelGEM.cxx.

getStackEffectiveGain()

float ModelGEM::getStackEffectiveGain

(

)

Calculate the total effective gain for a given GEM stack (defined with setStackProperties)

Definition at line 156 of file ModelGEM.cxx.

getStackEnergyResolution()

float ModelGEM::getStackEnergyResolution

(

)

Calculate the energy resolution for a given GEM stack (defined with setStackProperties)

Definition at line 114 of file ModelGEM.cxx.

setAbsGainScalingFactor()

void o2::tpc::ModelGEM::setAbsGainScalingFactor ( float  absGainScaling )

inline

Scale the gain curves of the individual GEM stages in order to tune the model calculations. By default this factor is set to 1.0 (i.e. no scaling).

Parameters

absGainScaling

Scaling factor for absolute gain curves

Definition at line 138 of file ModelGEM.h.

setAttachment()

void o2::tpc::ModelGEM::setAttachment ( float  attachment )

inline

Set the attachment factor to a specific value (unit 1/cm)

Parameters

attachment

Attachment factor (in 1/cm)

Definition at line 160 of file ModelGEM.h.

setStackProperties()

void ModelGEM::setStackProperties	(	const std::array< int, 4 > &	geometry,
		const std::array< float, 5 > &	distance,
		const std::array< float, 4 > &	potential,
		const std::array< float, 5 > &	electricField
	)

Define a 4 GEM stack for further calculations

Parameters

geometry	Array with GEM geometries (possible geometries are 0 standard, 1 medium, 2 large)
distance	Array with widths between cathode/anode and GEMs (in cm)
potential	Array with GEM potentials (in Volts)
electricField	Array with electric field configuration (in kV/cm)

Definition at line 106 of file ModelGEM.cxx.

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

• /home/runner/work/AliceO2/AliceO2/Detectors/TPC/base/include/TPCBase/ModelGEM.h
• /home/runner/work/AliceO2/AliceO2/Detectors/TPC/base/src/ModelGEM.cxx