CDCDedxADCNonLinearity Class Reference

dE/dx eletronic ADC non-linearity correction for highly ionising particles (used in offline hadron saturation calibration) paramters are for X vs Y relation and sep for inner and outer layer vector array 0,1 for inner and 2,3 for outer layers More...

#include <CDCDedxADCNonLinearity.h>

Inheritance diagram for CDCDedxADCNonLinearity:

Collaboration diagram for CDCDedxADCNonLinearity:

Public Member Functions
	CDCDedxADCNonLinearity ()
	Default constructor.
	CDCDedxADCNonLinearity (const std::vector< std::vector< double >> &nonlinearity)
	Constructor.
	~CDCDedxADCNonLinearity ()
	Destructor.
unsigned int	getSize (int layer, int axis) const
	Get the number of bins for the non-linearity angle correction. More...
double	getCorrectedADC (const double &ADC, const int layer) const
	Return corrected ADC with given parameters. More...
double	getNonLinearityPar (int layer, int axis, unsigned int par) const
	return specific hadron parameter More...
void	printNonLinearityPars (int layer, int axis) const
	print requested hadron parameter array More...
void	setNonLinearityPar (unsigned int layer, unsigned int axis, unsigned int par, double value)
	set specific hadron parameter More...

Private Member Functions
	ClassDef (CDCDedxADCNonLinearity, 1)
	ClassDef.

Private Attributes
std::vector< std::vector< double > >	m_nonlADC
	ADC vs corrected ADC mapping.

Detailed Description

dE/dx eletronic ADC non-linearity correction for highly ionising particles (used in offline hadron saturation calibration) paramters are for X vs Y relation and sep for inner and outer layer vector array 0,1 for inner and 2,3 for outer layers

Definition at line 29 of file CDCDedxADCNonLinearity.h.

Member Function Documentation

getCorrectedADC()

double getCorrectedADC ( const double &  ADC, const int  layer  ) const

inline

Return corrected ADC with given parameters.

Parameters

ADC	uncorrected version
layer	outer vs inner 0 to 56 indexing

Definition at line 78 of file CDCDedxADCNonLinearity.h.

    {
 
      int mylayer = 0;
      if (layer < 0 || layer > 55) {
        B2WARNING("CDCDedxADCNonLinearity:returning uncorrected ADC as input layer is out of range: must be 0-55");
        return ADC;
      } else {
        if (layer >= 8) mylayer = 2;
      }
 
      std::vector<double> tempX = m_nonlADC[mylayer];//inner or outer X array
      std::vector<double> tempY = m_nonlADC[mylayer + 1];//inner or outer Y array
 
      if (tempX.size() != tempY.size()) {
        B2WARNING("CDCDedxADCNonLinearity:returning uncorrected ADC as parameters range don't match: X=Y in bins");
        return ADC;
      }
 
      //Find bin for ADC correction
      unsigned int ibin = TMath::BinarySearch(tempY.size(), tempY.data(), double(ADC));
 
      if (ibin >= tempY.size() - 1)ibin = tempY.size() - 2; //overflow to last bin
      if (ibin >= tempY.size() - 1) {
        B2WARNING("CDCDedxADCNonLinearity:returning uncorrected ADC as bins are not in range");
        return ADC;
      }
 
      double slope = (tempY[ibin + 1] - tempY[ibin]) / (tempX[ibin + 1] - tempX[ibin]);
      return  std::round(tempX[ibin] + (ADC - tempY[ibin]) / slope);
    }

getNonLinearityPar()

double getNonLinearityPar ( int  layer, int  axis, unsigned int  par  ) const

inline

return specific hadron parameter

Parameters

layer	outer(8-55) vs inner(0-7)
axis	0 for X and 1 for Y
par	number starts from 0

Definition at line 115 of file CDCDedxADCNonLinearity.h.

getSize()

unsigned int getSize ( int  layer, int  axis  ) const

inline

Get the number of bins for the non-linearity angle correction.

Parameters

layer	outer vs inner 0 to 56 indexing
axis	0 for X and 1 for Y

Definition at line 52 of file CDCDedxADCNonLinearity.h.

printNonLinearityPars()

void printNonLinearityPars ( int  layer, int  axis  ) const

inline

print requested hadron parameter array

Parameters

layer	outer vs inner
axis	0 for X and 1 for Y

Definition at line 145 of file CDCDedxADCNonLinearity.h.

setNonLinearityPar()

void setNonLinearityPar ( unsigned int  layer, unsigned int  axis, unsigned int  par, double  value  )

inline

set specific hadron parameter

Parameters

layer	outer(8-55) vs inner(0-7)
axis	0 for X and 1 for Y
par	number starts from 0
value	of parameter to set

Definition at line 175 of file CDCDedxADCNonLinearity.h.

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

• reconstruction/dbobjects/include/CDCDedxADCNonLinearity.h