FFT_WF Class Reference

Class contains method for ploting the Fourier transforms of waveforms. For analysis of noise/signal frequencies, potential filters, or input data for machine learning. More...

#include <FFT_WF.h>

Inheritance diagram for FFT_WF:

Collaboration diagram for FFT_WF:

Public Member Functions
	FFT_WF (int no_of_bin_files_to_read)
	Initializer will call initializer of ReadRun class.
void	PrintFFTWF (int=1, float=0., float=0., int=1)
	Print Fourier transform of waveforms.
Public Member Functions inherited from ReadRun
TH1F *	BaselineCorrectionResults (int, int, float=-5, float=5, int=200)
	Histograms of the contents of baseline_correction_result.
void	ChargeCorrelation (float, float, float, float, float, float, int, int, int, bool=false)
	Plot correlation of integrals/amplitudes between two channels.
float *	ChargeList (int, float=20, float=80, float=0, float=300, bool=1)
	Returns array with the individual "charge"/amplitude for all events of one channel.
TH1F *	ChargeSpectrum (int, float, float, float=0, float=300, float=-50, float=600, int=750)
	Histogram of the "charge" spectrum for one channel.
void	CorrectBaseline (float, float=-999)
	Baseline correction constant window.
void	CorrectBaseline_function (TH1F *, float, float, int)
	Helper function called by CorrectBaseline()
void	CorrectBaselineMin (int=100, double=0.5, int=0, int=0, int=2)
	Baseline correction using minimum sum ( \(\propto\) mean) in range for correction.
void	CorrectBaselineMin (vector< float >, double=0, int=2, int=2)
	Baseline correction using minimum sum ( \(\propto\) mean) in range for correction.
void	CorrectBaselineMinSlopeRMS (int=100, bool=false, double=0.5, int=0, int=0, int=2)
	Baseline correction method searching for non-monotonic, rather constant regions.
void	CorrectBaselineMinSlopeRMS (vector< float >, double=0, int=2, int=3)
	Baseline correction method searching for non-monotonic, rather constant regions.
void	FilterAll (double=.3, double=.9, double=.2)
	Filter all waveforms.
void	FractionEventsAboveThreshold (float=4, bool=true, bool=true, double=0., double=0., bool=false)
	Find events with max/min above/below a certain threshold.
int	GetChannelIndex (int)
	Match channel number (wavecatcher input channel) to channel index.
int	GetCurrentChannel (int)
	Get the current channel index for a certain waveform index.
int	GetCurrentEvent (int)
	Get the current event index for a certain waveform index.
int	GetEventIndex (unsigned int)
	Returns index of a certain event number (if data files are read in parallel threads)
int *	GetIntWindow (TH1F *, float, float, float, float, int=0)
	Determine indices for integration window for peaks.
float	GetPeakIntegral (TH1F *, float, float, float, float, int=0)
	Calculate the integral around a peak with several options explained in GetIntWindow().
void	GetTimingCFD (float=.3, float=100, float=140, double=0., bool=true, int=2, bool=false)
	Determine the timing of the maximum peak with constant fraction discrimination.
TH1F *	Getwf (int)
	Helper that returns the waveform histogram for a certain waveform number number.
TH1F *	Getwf (int, int, int=1)
	Helper that returns the waveform histogram for a certain channel number and a certain event number.
double *	getx (double=0.)
	Get array of x axis (time) for standard wavecatcher settings.
double *	gety (int)
	Get array of y values for a certain waveform.
double *	gety (int, int)
	Get array of y values for a certain waveform.
TH1F *	His_GetTimingCFD (int, float, float, int=-999)
	Plot results of GetTimingCFD()
TH1F *	His_GetTimingCFD_diff (vector< int >, vector< int >, float, float, int=-999)
	Plot timing difference between the mean timings of two channel ranges.
void	IntegralFilter (vector< float >, vector< bool >, float, float, float=50, float=250, bool=false, bool=false)
	Skip events with threshold on integral.
TGraph2D *	MaxDist (int, float=0, float=300)
	Finds maximum amplitude for a given channel in time window ["from", "to"] and creates 3d map of waveforms ordered by maxima.
int	Nevents_good ()
	Number of good events that are not skipped.
bool	PlotChannel (int)
	Check if a channel index should be plotted according to ReadRun::plot_active_channels.
void	PlotChannelAverages (bool=false)
	Plot averages only of the good, corrected waveforms for each channel.
void	PlotChannelSums (bool=false, bool=false, double=0., double=0., int=2)
	Plot sums of all raw waveforms for each channel.
void	PlotWFHeatmaps (float=-20, float=200, int=880, string="", float=0, EColorPalette=kGistEarth)
	Plot stacks of all non-skipped waveforms for all active channels.
void	Print_GetTimingCFD (float=100, float=140, int=0, int=-999, string="S", bool=true)
	Plot results of GetTimingCFD()
void	Print_GetTimingCFD_diff (vector< int >, vector< int >, float=100, float=140, int=0, int=-999, float=-999, float=-999, string="RS", bool=true)
	Plot timing difference between the mean timings of two channel ranges.
void	PrintBaselineCorrectionResults (float=-5, float=5, int=200)
	Print histogram of the baseline correction values for all channels.
void	PrintChargeSpectrum (float, float, float=0, float=300, float=-50, float=600, int=750, float=0., float=0., int=99, int=0, bool=false)
	Plots the "charge" spectrums of all channels.
void	PrintChargeSpectrumWF (float, float, float=0, float=300, int=1, float=0., float=0., float=0., float=0.)
	Plot waveforms of all channels for a given event number and add the determined integration windows to the plot.
void	PrintDCR (float=15, float=85, float=0, float=300, double=3)
	Calculate (SiPM) dark count rate.
void	PrintMaxDist (float=0, float=300)
	Finds maximum amplitude for a given channel in time window ["from", "to"] and creates 3d map of waveforms ordered by maxima.
void	PrintSkippedEvents ()
	Prints a list of all skipped events into the terminal for diagnostics.
void	PrintTimeDist (float=0, float=300, float=0, float=300, int=100, int=0, float=.3)
	Time distribution of maximum, CFD, or 10% - 90% rise time in a certain time window.
void	PrintWFProjection (float=0, float=320, float=-50, float=50, int=200)
	Plots waveform projection histograms of all channels.
void	ReadFile (string, bool=false, int=9, string="out.root", bool=false)
	Routine to read files created by the wavecatcher.
	ReadRun (int max_no_of_bin_files_to_read=0, int min_no_of_bin_files_to_read=0)
	Constructor of the class.
void	SaveChargeLists (float=20, float=80, float=0, float=300, bool=1)
	Saves TGraphs to root file with the individual "charge"/amplitude for all events and all channels.
void	ShiftAllToAverageCF ()
	This function shifts all waveforms to the average signal starting times for each channel.
void	SkipEventsPerChannel (vector< float >, float=0, float=0, bool=false)
	Skip events above/below individual thresholds per channel.
void	SkipEventsTimeDiffCut (int, int, double, double, bool=false)
	Skip events where the time difference between two channels is outside of specified range.
void	SmoothAll (double, int)
	Smoothing all waveforms which are not skipped (for testing, careful when using for analysis!)
void	SmoothAll (double, string="Gaus")
	Smoothing all waveforms which are not skipped (for testing, careful when using for analysis!)
TH1F *	TimeDist (int, float=0, float=300, float=0, float=300, int=100, int=0, float=.3)
	Time distribution of maximum, CFD, or 10% - 90% rise time in a certain time window.
void	UnskipAll ()
	Sets skip_event flag to false for all events, removing any previous cuts.
TH2F *	WFHeatmapChannel (int, float=-20, float=200, int=880)
	2D histogram of all non-skipped waveforms for one channel
TH1F *	WFProjectionChannel (int, int=0, int=1024, float=-50, float=50, int=200)
	Waveform projections for one channel.
virtual	~ReadRun ()
	Destructor.

Additional Inherited Members
Static Public Member Functions inherited from ReadRun
static pair< float, bool >	LinearInterpolation (float, float, float, float, float)
	Simple linear interpolation for x.
Public Attributes inherited from ReadRun
vector< int >	active_channels
	Stores the numbers of the active channels.
float **	amplValuessum
	Collects sums of all waveforms for each channel.
vector< vector< float > >	baseline_correction_result
	Stores baseline correction results for CorrectBaseline() and related functions.
int	binNumber = 1024
	Number of bins (always 1024 samples per waveform). Do not change!
float	DAQ_factor = 250. / 4096.
	DAQ conversion factor for wavecatcher output to mV.
string	data_path
	Path to data.
bool	discard_original_eventnr = false
	Can be used to discard the original event numbering of the data.
int	end_read_at_channel = -1
	See ReadRun::start_read_at_channel.
vector< unsigned int >	eventnr_storage
	Events will be stored here in the order they have been read.
vector< TFitResultPtr >	fit_results
	Stores the fit results of PrintChargeSpectrum() for all channels and all function calls in ascending order.
int	MaxNoOfBinFilesToRead
	Number of last .bin file to be read in.
int	maxNWF = 1e7
	Maximum possible number of waveforms in data: number of active channels x number of events.
int *	maxSumBin
	Stores bin numbers where the sum of waveforms have their maximum.
vector< float >	mean_integral
	Stores the mean integral/lightyield from PrintChargeSpectrum() for all channels.
int	MinNoOfBinFilesToRead
	Number first of .bin file to be read in.
int	nchannels
	Number of active channels in data.
int	nChannelsWC = 64
	Wavecatcher hardware max. number of channels (reduce/increase if not using the 64 channel crate)
int	nevents
	Number of triggered events in data.
int	nwf
	Total number of waveforms read from data: number of active channels x number of events.
vector< int >	plot_active_channels
	Stores the numbers of the active channels which should be plotted.
vector< vector< float > >	PrintChargeSpectrum_cal = vector(nChannelsWC, vector<float>(2, 1))
	Calibration values to normalize charge spectrum to number of photoelectrons Chennels must be ordered as in plot_active_channels. The first entry must be the gain and the second the position of the pedestal.
vector< float >	PrintChargeSpectrum_pars
	Starting values of the fit parameters for PrintChargeSpectrum()
TFile *	root_out
	Stores results of analysis.
TClonesArray *	rundata
	Stores data.
bool	Shift_WFs_in_file_loop = false
	Shift waveforms with CFD so that all events start at the same time Call after initializing class and before calling ReadFile(). Set the constant fraction, the bin to shift the signal to, and the search window with tWF_CF, tWF_CF_bin, and tWF_CF_lo and tWF_CF_hi, respectively.
vector< bool >	skip_event
	Stores the event numbers which should be skipped in the analysis.
float	SP = .3125
	Sampling: ns per bin of data, sampling rate 3.2 GS/s -> 0.3125 ns.
int	start_read_at_channel = -1
	Do analysis only for limited range of channels to reduce memory usage.
vector< int >	switch_polarity_for_channels
	Stores the channel number where the polarity should be inverted. Example use to switch polarity for channel 0 and channel 14: mymeas.switch_polarity_for_channels = {0, 14};. Needs to be called before ReadFile().
float	tCutEndg
	End of time window for baseline correction when using ReadRun::Using_BaselineCorrection_in_file_loop.
float	tCutg
	Start of time window for baseline correction when using ReadRun::Using_BaselineCorrection_in_file_loop.
vector< TFitResultPtr >	timing_fit_results
	Stores the fit results of Print_GetTimingCFD() for all channels.
vector< vector< float > >	timing_results
	Matrix to store timing of peaks from GetTimingCFD()
float	tWF_CF = 0.3
	Constant fraction of maximum (between ~0.1 and 1) for ReadRun::Shift_WFs_in_file_loop.
int	tWF_CF_bin = 375
	Time bin all events will be shifted to for ReadRun::Shift_WFs_in_file_loop Needs to be 300<"tWF_CF_bin"<500 ("tWF_CF_bin"=375 means all peaks will be shifted to 375*.3125 ns=117.1875 ns)
int	tWF_CF_hi = 500
	End of range of bins where the signal is expected for ReadRun::Shift_WFs_in_file_loop.
int	tWF_CF_lo = 320
	Start of range of bins where the signal is expected for ReadRun::Shift_WFs_in_file_loop.
bool	Using_BaselineCorrection_in_file_loop = false
	Set true for baseline correction during data reading. Needs to be called before ReadFile().
Protected Member Functions inherited from ReadRun
void	checkData () const
	Primitive check to see if data has been loaded.

Detailed Description

Class contains method for ploting the Fourier transforms of waveforms. For analysis of noise/signal frequencies, potential filters, or input data for machine learning.

Definition at line 7 of file FFT_WF.h.

Constructor & Destructor Documentation

FFT_WF()

FFT_WF::FFT_WF ( int  no_of_bin_files_to_read )

inline

Initializer will call initializer of ReadRun class.

Parameters

no_of_bin_files_to_read

Definition at line 11 of file FFT_WF.h.

Member Function Documentation

PrintFFTWF()

void FFT_WF::PrintFFTWF	(	int	eventnr = 1,
		float	xmin = 0.,
		float	xmax = 0.,
		int	multiplier = 1
	)

Print Fourier transform of waveforms.

For analysis of noise/signal frequencies, potential filters, or input data for machine learning.

Parameters

eventnr	Event number
xmin	Range min
xmax	Range max
multiplier	Multiplier for resolution of plot

Definition at line 11 of file FFT_WF.cc.

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

• src/FFT_WF.h
• src/FFT_WF.cc