xAOD::AFPSiHit_v2 Class Reference

Class representing a hit in silicon detector. More...

#include <AFPSiHit_v2.h>

Inheritance diagram for xAOD::AFPSiHit_v2:

Collaboration diagram for xAOD::AFPSiHit_v2:

Public Member Functions
	AFPSiHit_v2 ()
float	depositedCharge () const
	Charge deposited in the pixel.
void	setDepositedCharge (float charge)
	Method setting value of the charge deposited in the pixel.
float	timeOverThreshold () const
	Time over threshold of signal for a pixel.
void	setTimeOverThreshold (float timeOverThreshold)
	Method setting value of time over threshold.
int	stationID () const
	Index of the station with pixel hit.
void	setStationID (int stationID)
	Set index of the station with pixel hit.
int	pixelLayerID () const
	Index of the layer of pixels, i.e.
void	setPixelLayerID (int layerID)
	Method setting index of the pixel layer with hit.
int	pixelRowIDChip () const
	Index of the pixel row in chip coordinate system.
void	setPixelRowIDChip (int rowID)
	Set pixel row index in the chip coordinate system.
int	pixelColIDChip () const
	Index of the pixel column in chip coordinate system.
void	setPixelColIDChip (int colID)
	Set pixel column index in the chip coordinate system.
int	pixelHorizID () const
	Index of the pixel along X axis in LHC coordinate system.
void	setPixelHorizID (const int horizontalID)
	Set index of the pixel along X axis in LHC coordinate system.
int	pixelVertID () const
	Index of the pixel along Y axis in LHC coordinate system.
void	setPixelVertID (const int verticalID)
	Set index of the pixel along Y axis in LHC coordinate system.
void	toPersistent ()
	Function making sure that the object is ready for persistification i.e. saving.

Detailed Description

Class representing a hit in silicon detector.

This class provides information about a single hit in AFP silicon detector.

Definition at line 29 of file AFPSiHit_v2.h.

Constructor & Destructor Documentation

AFPSiHit_v2()

xAOD::AFPSiHit_v2::AFPSiHit_v2

(

)

Definition at line 24 of file AFPSiHit_v2.cxx.

                           : SG::AuxElement()
  { }

Member Function Documentation

depositedCharge()

float xAOD::AFPSiHit_v2::depositedCharge

(

)

const

Charge deposited in the pixel.

Charge deposited in the pixel (amplitude of the signal) calculated based on the time over threshold. Time over threshold should be proportional to the deposited charge, but there may be small deviations.

Returns

charge deposited in the pixel

pixelColIDChip()

int xAOD::AFPSiHit_v2::pixelColIDChip

(

)

const

Index of the pixel column in chip coordinate system.

Index of the column in chip coordinate system. There are 80 columns numbered from 1. Column number 1 is the bottom one, while column 80 is the topmost one.

Note

Columns in chip coordinate system are horizontal, because the chips are mounted rotated by 90 degrees.

Returns

index of the pixel column which is in horizontal direction

pixelHorizID()

int xAOD::AFPSiHit_v2::pixelHorizID

(

)

const

Index of the pixel along X axis in LHC coordinate system.

There are 336 pixels in the horizontal direction numbered from

1. The numbering is according to the LHC coordinate system i.e. pixel 0 is the outermost pixel and pixel 335 is the innermost (closest to the LHC centre).

This method transforms index from the chip coordinate system to the LHC coordinate system.

Returns

index of the pixel along X axis in LHC coordinate system

Definition at line 37 of file AFPSiHit_v2.cxx.

  {
    // use pixel rows because detectors are rotated and subtract
    // from 336, because the axis is reversed
    return 336 - pixelRowIDChip();
  }

pixelLayerID()

int xAOD::AFPSiHit_v2::pixelLayerID

(

)

const

Index of the layer of pixels, i.e.

the silicon detector, with hit.

It is advised to use class xAOD::AFPPixelLayerID instead of integers to process this information. In this class the numbering scheme is explained.

Returns

index of the pixels layer with hit (see class xAOD::AFPPixelLayerID )

pixelRowIDChip()

int xAOD::AFPSiHit_v2::pixelRowIDChip

(

)

const

Index of the pixel row in chip coordinate system.

Index of the row in chip coordinate system. There are 336 rows numbered from 1. Row number 1 is closest to the LHC centre, while row 336 is the outermost.

Note

Rows in chip coordinate system are vertical, because the chips are mounted rotated by 90 degrees.

Returns

index of the pixel row which is in vertical direction

pixelVertID()

int xAOD::AFPSiHit_v2::pixelVertID

(

)

const

Index of the pixel along Y axis in LHC coordinate system.

There are 80 pixels in the vertical direction numbered from

1. The numbering is according to the LHC coordinate system i.e. pixel 0 is the lowest and pixel 79 is the topmost.

This method transforms index from the chip coordinate system to the LHC coordinate system.

Returns

index of the pixel along Y axis in LHC coordinate system

Definition at line 52 of file AFPSiHit_v2.cxx.

  {
    // use pixel columns because detectors are rotated
    return pixelColIDChip();
  }

setDepositedCharge()

void xAOD::AFPSiHit_v2::setDepositedCharge

(

float

charge

)

Method setting value of the charge deposited in the pixel.

Parameters

charge

value of the charge deposited in the pixel

setPixelColIDChip()

void xAOD::AFPSiHit_v2::setPixelColIDChip

(

int

colID

)

Set pixel column index in the chip coordinate system.

Index of the column in chip coordinate system can have value between 1 and 80. Column number 1 is the bottom one, while column 80 is the topmost one.

Note

Columns in chip coordinate system are horizontal, because the chips are mounted rotated by 90 degrees.

Parameters

colID

index of pixel column in chip coordinate system to be assigned to the hit

setPixelHorizID()

void xAOD::AFPSiHit_v2::setPixelHorizID

(

const int

horizontalID

)

Set index of the pixel along X axis in LHC coordinate system.

There are 336 pixels in the horizontal direction numbered from

1. The numbering is according to the LHC coordinate system i.e. pixel 0 is the outermost pixel and pixel 335 is the inner most (closest to the LHC centre).

This method transforms input from the LHC coordinate system to the chip coordinate system and saves it.

Parameters

horizontalID

index of pixel along X axis in the LHC coordinate system

Definition at line 44 of file AFPSiHit_v2.cxx.

  {
    // use pixel rows because detectors are rotated and subtract
    // from 336, because the axis is reversed
    setPixelRowIDChip (336 - horizontalID);
  }

setPixelLayerID()

void xAOD::AFPSiHit_v2::setPixelLayerID

(

int

layerID

)

Method setting index of the pixel layer with hit.

The index of the layer should be set according to the convention in pixelLayerID()

Parameters

layerID

index of the pixel layer with hit

setPixelRowIDChip()

void xAOD::AFPSiHit_v2::setPixelRowIDChip

(

int

rowID

)

Set pixel row index in the chip coordinate system.

Index of the row in chip coordinate system can have value between 1 and 336. Row number 1 is closest to the LHC centre, while row 336 is the outermost.

Note

Rows in chip coordinate system are vertical, because the chips are mounted rotated by 90 degrees.

Parameters

rowID

index of pixel row in chip coordinate system to be assigned to the hit

setPixelVertID()

void xAOD::AFPSiHit_v2::setPixelVertID

(

const int

verticalID

)

Set index of the pixel along Y axis in LHC coordinate system.

There are 80 pixels in the horizontal direction numbered from

1. The numbering is according to the LHC coordinate system i.e. pixel 0 is the lowest and pixel 79 is the topmost.

This method transforms input from the LHC coordinate system to the chip coordinate system and saves it.

Parameters

verticalID

index of pixel along Y axis in the LHC coordinate system

Definition at line 58 of file AFPSiHit_v2.cxx.

  {
    // use pixel columns because detectors are rotated
    setPixelColIDChip (verticalID);
  }

setStationID()

void xAOD::AFPSiHit_v2::setStationID

(

int

stationID

)

Set index of the station with pixel hit.

It is advised to use class xAOD::AFPStationID instead of integers to process this information. In this class the numbering scheme is explained.

Returns

index of the station (see class xAOD::AFPStationID )

Parameters

stationID

index of the station with the hit

setTimeOverThreshold()

void xAOD::AFPSiHit_v2::setTimeOverThreshold

(

float

timeOverThreshold

)

Method setting value of time over threshold.

Parameters

timeOverThreshold

value of the time over threshold for a pixel

stationID()

int xAOD::AFPSiHit_v2::stationID

(

)

const

Index of the station with pixel hit.

It is advised to use class xAOD::AFPStationID instead of integers to process this information. In this class the numbering scheme is explained.

Returns

index of the station (see class xAOD::AFPStationID )

timeOverThreshold()

float xAOD::AFPSiHit_v2::timeOverThreshold

(

)

const

Time over threshold of signal for a pixel.

The length of the signal is proportional to the charge deposited in the pixel. The transformation is configured during the detector running and requires calibration. This is basic quantity which is used to reconstruct charge deposited in the pixel.

Returns

time over threshold of the signal

toPersistent()

void xAOD::AFPSiHit_v2::toPersistent

(

)

Function making sure that the object is ready for persistification i.e. saving.

Definition at line 34 of file AFPSiHit_v2.cxx.

                                 {
  }

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

• AFPSiHit_v2.h
• AFPSiHit_v2.cxx