Class include function that calculate electronic response from energy deposit
More...

#include <shaperdsp.h>

Collaboration diagram for ShaperDSP_t:

Classes
struct	shaperdspshift_t
	struct for a shift of the shaper dsp More...

struct	sv123shift_t
	struct to encapsulate the electronic response from energy deposit More...

Public Member Functions
	ShaperDSP_t ()
	class constructor

	ShaperDSP_t (const std::vector< double > &s)
	calculate derivative of the response function

	ShaperDSP_t (const std::vector< double > &s, double u)
	class constructor

void	init (const std::vector< double > &s, double u=27.7221)
	initialization of the parameters response function

double	operator() (double) const
	wrapper of the function

double	operator() (double , double )
	TF1 ROOT interface.

void	settimestride (double)
	set grid step for function calculation

void	setseedoffset (double)
	set timeoffset

void	settimeseed (double)
	set initial time

void	nextseed ()
	substruct toffset to tzero

void	fillvector (std::vector< double > &) const
	fill vector with response function values and its derivative

void	fillvector (std::vector< dd_t > &) const
	fill vector with response function values and its derivative

void	fillvector (double, std::vector< double > &) const
	fill vector with response function values and its derivative

void	fillvector (double, std::vector< dd_t > &) const
	fill vector with response function values and its derivative

void	fillarray (int, double *) const
	fill array for amplitude and time calculation

void	fillarray (int, dd_t *) const
	fill array for amplitude and time calculation

void	fillarray (double, int, double *) const
	fill array for amplitude and time calculation

void	fillarray (double, int, dd_t *) const
	fill array for amplitude and time calculation

Private Member Functions
void	Sv123_init (double t01, double tb1, double t02, double tb2, double td1, double ts1)
	calculate some values for Sv123 function

void	init (const double *, double) __attribute__((noinline))
	calculate some values for Sv123 function

void	init (const double *) __attribute__((noinline))
	calculate some values for Sv123 function

double	Sv123 (const sv123shift_t &) const
	calculate Sv123 function

dd_t	ddSv123 (const sv123shift_t &) const
	calculate derivative of the Sv123 function

double	Sv123_filtered (const sv123shift_t &) const __attribute__((noinline))
	Numerical calculation of the time convolution. More...

dd_t	ddSv123_filtered (const sv123shift_t &) const __attribute__((noinline))
	This is derivative of the confolution

double	ShaperDSP (const shaperdspshift_t &) const
	calculate response function

dd_t	ddShaperDSP (const shaperdspshift_t &) const
	calculate derivative of the response function

Private Attributes
double	_cs0
	linear coefficient before sin of the first Bessel stage

double	_cc0
	linear coefficient before cos of the first Bessel stage

double	_cs1
	linear coefficient before sin of the second Bessel stage

double	_cc1
	linear coefficient before cos of the second Bessel stage

double	_ces
	linear coefficient before first part of tail section

double	_ced
	linear coefficient before second part of tail section

double	_dw0
	circular frequency of the first Bessel stage

double	_dw1
	circular frequency of the second Bessel stage

double	_dks0
	decrement of the first Bessel stage

double	_dks1
	decrement of the second Bessel stage

double	_ds
	inverse scintillation decay time

double	_dd
	inverse time of the differential stage

double	_dt0
	coefficient for first exponent factor

double	_dt1
	coefficient for second exponent factor

double	_toff
	time offset

double	_w0
	weight coefficient at sv123(t) = (1-a)

double	_w1
	weight coefficient at sv123(t+_filterdt) +sv123(t-_filterdt) = a/2

double	_ccc
	exponent factor for tail part of the signal

sv123shift_t	_tp
	_filterdt

sv123shift_t	_tm

shaperdspshift_t	_tstride
	time step of the grid for response function calculation

shaperdspshift_t	_toffset
	time offset

shaperdspshift_t	_tzero
	initial time

Static Private Attributes
static const double	_defs [] = {0.5, 0.6483, 0.4017, 0.3741, 0.8494, 0.00144547, 4.7071, 0.8156, 0.5556, 0.2752}
	parameters of the response function that use as default

static constexpr double	_filterdt = 0.2
	time shift that include in response function for numerical calculation time convolutions. More...

Detailed Description

Class include function that calculate electronic response from energy deposit

Definition at line 36 of file shaperdsp.h.

Member Function Documentation

◆ Sv123_filtered()

double Sv123_filtered ( const sv123shift_t & t0 ) const

private

Numerical calculation of the time convolution.

Integration with histogram is used. Int g(s-t)f(t)dt=g(s)+a*(g(s+_filterdt)-g(s-_filterdt))/2

Definition at line 238 of file shaperdsp.cc.

 {
   if (t0.validshift(_tp)) {
     double ft0p = Sv123(t0 + _tp), ft0 = 0, ft0m = 0;
     if (t0.t > 0) {
       ft0 = Sv123(t0);
       if (t0.validshift(_tm))
         ft0m = Sv123(t0 + _tm);
     }
     return _w0 * ft0 + _w1 * (ft0p + ft0m);
   }
   return 0;
 }

Member Data Documentation

◆ _filterdt

constexpr double _filterdt = 0.2

staticconstexprprivate

time shift that include in response function for numerical calculation time convolutions.

Integration with histogram is used. Int g(s-t)f(t)dt=g(s)+a*(g(s+_filterdt)-g(s-_filterdt))/2

Definition at line 85 of file shaperdsp.h.

◆ _tm

sv123shift_t _tm

private

_filterdt

Definition at line 130 of file shaperdsp.h.

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

ecl/digitization/include/shaperdsp.h
ecl/digitization/src/shaperdsp.cc

Classes

Public Member Functions

Private Member Functions