Generates background hits in the FTD detector. More...

Inheritance diagram for FTDBackgroundProcessor:

Public Member Functions
virtual Processor *	newProcessor ()

virtual void	init ()
	Called at the begin of the job before anything is read. More...

virtual void	processRunHeader (LCRunHeader *run)
	Called for every run.

virtual void	processEvent (LCEvent *evt)
	Called for every event - the working horse.

virtual void	check (LCEvent *evt)

virtual void	end ()
	Called after data processing for clean up.

Protected Member Functions
CLHEP::Hep3Vector	getRandPosition (double rMin, double lengthMin, double lengthMax, double width, double phi, double z)

Protected Attributes
std::string	_colNameFTDStripTrackerHit

std::string	_colNameFTDPixelTrackerHit

float	_resU

float	_resV

int	_nRun

int	_nEvt

float	_densityRegulator

std::vector< float >	_backgroundDensity

std::vector< float >	_backgroundDensitySigma

std::vector< int >	_integratedBX

Detailed Description

Generates background hits in the FTD detector.

Parameters

FTDPixelTrackerHitCollectionName	Name of the FTD Pixel TrackerHit collection where the background hits will be added. (default value FTDPixelTrackerHits)
FTDStripTrackerHitCollectionName	Name of the FTD Strip TrackerHit collection where the background hits will be added. (default value FTDStripTrackerHits)
ResolutionU	resolution in direction of u (in mm) (default value 0.004)
ResolutionV	Resolution in direction of v (in mm) (default value 0.004)
BackgroundHitDensity	the densities of the background hits measured in hits / cm^2 /BX (BX= bunchcrossing) for the different layers. These units are chosen because they are identical with those in the LOI. (default values 0.013 0.008 0.002 0.002 0.001 0.001 0.001 )
BackgroundHitDensitySigma	the sigmas corresponding to the BackgroundHitDensity. Also in hits / cm^2 /BX. The actual number of created background hits will be smeared gaussian aroung the BackgroundHitDensity with these values. (default values 0.005 0.003 0.001 0.001 0.001 0.001 0.001 )
IntegratedBX	the number of integrations of bunchcrossings the FTDs do before readout. For strip detectors this is usually 1 and for Pixels a lot more. (default values 100 100 1 1 1 1 1 )
DensityRegulator	Regulates all densities. This can be used to dim or amplify all the background. 1 means no change at all, 2 means background is doubled, 0.7 means only 70 percent of the background and so on. (default value 1. )

Member Function Documentation

void FTDBackgroundProcessor::init ( )

virtual

Called at the begin of the job before anything is read.

Use to initialize the processor, e.g. book histograms.

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