o2::mch::DEDigitizer Class Reference

MCH digitizer dealing with a single detection element. More...

#include <DEDigitizer.h>

Public Types
using	DigitsAndLabels = std::pair< std::vector< Digit >, dataformats::MCLabelContainer >

Public Member Functions
	DEDigitizer (int deId, math_utils::Transform3D transformation, std::mt19937 &random)
void	setFirstTFOrbit (uint32_t firstTFOrbit)
void	processHit (const Hit &hit, const InteractionRecord &collisionTime, int evID, int srcID)
void	addNoise (const InteractionRecord &firstIR, const InteractionRecord &lastIR)
size_t	digitize (std::map< InteractionRecord, DigitsAndLabels > &irDigitsAndLabels)
void	clear ()
	Clear the internal lists of signals.

Detailed Description

MCH digitizer dealing with a single detection element.

Definition at line 33 of file DEDigitizer.h.

Member Typedef Documentation

DigitsAndLabels

using o2::mch::DEDigitizer::DigitsAndLabels = std::pair<std::vector<Digit>, dataformats::MCLabelContainer>

Definition at line 36 of file DEDigitizer.h.

Constructor & Destructor Documentation

DEDigitizer()

o2::mch::DEDigitizer::DEDigitizer	(	int	deId,
		math_utils::Transform3D	transformation,
		std::mt19937 &	random
	)

Constructor.

Parameters

deId	detection element ID
transformation	a transformation to convert global coordinates (of this hits) into local (to the detection element) ones
random	random number generator

Definition at line 34 of file DEDigitizer.cxx.

Member Function Documentation

addNoise()

void o2::mch::DEDigitizer::addNoise	(	const InteractionRecord &	firstIR,
		const InteractionRecord &	lastIR
	)

Add noise-only signals.

Noise will be generated for all IR between firstIR and lastIR. Note that depending on the actual noise probability some IR might not get any pad with noise-only signal, and that's fine.

Parameters

firstIR	first IR for which noise will be generated
lastIR	last IR for which noise will be generated

Definition at line 128 of file DEDigitizer.cxx.

clear()

void o2::mch::DEDigitizer::clear

(

)

Clear the internal lists of signals.

Definition at line 206 of file DEDigitizer.cxx.

digitize()

size_t o2::mch::DEDigitizer::digitize

(

std::map< InteractionRecord, DigitsAndLabels > &

irDigitsAndLabels

)

Do the digitization.

The digitization accounts for charge dispersion (adding noise to physical signals) and threshold, time dispersion and pileup within readout windows. It fills the lists of digits and associated labels ordered per IR and returns the number of signal pileup in overlapping readout windows.

Parameters

irDigitsAndLabels

lists of digits and associated labels ordered per IR

Definition at line 142 of file DEDigitizer.cxx.

processHit()

void o2::mch::DEDigitizer::processHit	(	const Hit &	hit,
		const InteractionRecord &	collisionTime,
		int	evID,
		int	srcID
	)

Process one MCH Hit.

This will convert the hit eloss into a charge and spread (according to a Mathieson 2D distribution) that charge among several pads, that will become digits eventually

Parameters

hit	the input hit to be processed
collisionTime	the IR this hit is associated to
evID	the event identifier of the hit in the sim chain within srcID
srcID	the origin (signal, background) of the hit

See also

o2::steer::EventPart

Definition at line 52 of file DEDigitizer.cxx.

setFirstTFOrbit()

void o2::mch::DEDigitizer::setFirstTFOrbit ( uint32_t  firstTFOrbit )

inline

Set the first orbit of the processed TF.

Parameters

firstTFOrbit

TF first orbit

Definition at line 50 of file DEDigitizer.h.

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

• /home/runner/work/AliceO2/AliceO2/Detectors/MUON/MCH/Simulation/include/MCHSimulation/DEDigitizer.h
• /home/runner/work/AliceO2/AliceO2/Detectors/MUON/MCH/Simulation/src/DEDigitizer.cxx