converts a Electron Time of Flight trace to Energy More...

#include <partial_covariance.h>

Inheritance diagram for cass::pp400:

Collaboration diagram for cass::pp400:

Public Member Functions
	pp400 (const name_t &)
	constructor More...

virtual void	process (const CASSEvent &, result_t &)
	process event More...

virtual void	loadSettings (size_t)
	load the settings of the pp More...

Public Member Functions inherited from cass::Processor
	Processor (const name_t &name)
	constructor More...

virtual	~Processor ()
	virtual destructor More...

virtual void	processEvent (const CASSEvent &event)
	process the event More...

virtual const result_t &	result (const CASSEvent::id_t eventid=0)
	retrieve a result for a given id. More...

virtual void	releaseEvent (const CASSEvent &event)
	tell the list that the result for event can be overwritten More...

result_t::shared_pointer	resultCopy (const uint64_t eventid)
	retrieve histogram for id More...

virtual void	load ()
	load the general settings More...

virtual void	aboutToQuit ()
	function that will be called when the processor is about to be deleted More...

const names_t &	dependencies ()
	Define all processors keys a processor depends on. More...

void	clearDependencies ()
	clear the dependenies More...

void	clearHistograms ()
	clear the histograms More...

virtual void	processCommand (std::string command)
	process command in pp More...

const name_t	name () const
	retrieve the name of this processor More...

bool	hide () const
	retrieve the hide flag of this processor More...

const std::string &	comment () const
	retrieve the comment of this processor More...

Protected Member Functions
double	calcEtoTof (double energy)
	retrieve the time that corresponses to a given energy More...

void	ToftoEnergy (const result_t &TofHisto, result_t &Energy, double offset)
	make the histgram in energy scale. More...

Protected Member Functions inherited from cass::Processor
virtual void	createHistList (result_t::shared_pointer result)
	create result list. More...

void	setupGeneral ()
	general setup of the processor More...

bool	setupCondition (bool defaultConditionType=true)
	setup the condition. More...

shared_pointer	setupDependency (const std::string &depVarName, const name_t &name="")
	setup the dependecy. More...

Protected Attributes
shared_pointer	_pHist
	pp containing input histogram More...

std::pair< float, float >	_userTofRange
	the user requested Tof-axis limits More...

double	t0
	corrects the time of flight More...

double	e0
	retardation voltage More...

double	alpha
	Coefficient to convert to energy. More...

double	tb1
	The lower limit for calculating baseline. More...

double	tb2
	The upper limit for calculating baseline. More...

double	offset
	the calculated level of baseline More...

size_t	NbrBins
	number of bins in converted histgram More...

size_t	binTofUp
	Upper limit converted to bin. More...

size_t	binTofLow
	lower limit converted to bin More...

size_t	bint0
	t0 converted to bin More...

size_t	bintb1
	tb1 converted to bin More...

size_t	bintb2
	tb2 converted to bin More...

Protected Attributes inherited from cass::Processor
const name_t	_name
	the processors name More...

bool	_hide
	flag to tell whether this pp should be hidden in the dropdown list More...

std::string	_comment
	optional comment that one can add to a processor. More...

CachedList	_resultList
	the list of results More...

names_t	_dependencies
	the list of dependencies More...

shared_pointer	_condition
	pointer to the processor that will contain the condition More...

Additional Inherited Members
Public Types inherited from cass::Processor
typedef std::tr1::shared_ptr< Processor >	shared_pointer
	a shared pointer of this More...

typedef std::string	name_t
	define the name type More...

typedef std::list< name_t >	names_t
	define the list of names More...

typedef CachedList::item_type	result_t
	define the results More...

typedef CachedList::item_sp	resultsp_t
	define the shared pointer to the result More...

Detailed Description

converts a Electron Time of Flight trace to Energy

Available PostProcessors:: "400": converts a Electron Time of Flight trace to Energy

converts a time of flight trace of electrons to the coresponding energy using function $E = (\frac{\alpha}{(t-t_0)})^2-e_0$ .

Note: One Energy point is created from many points in the ToF trace. This means that one has make sure that the Baseline is correct. Therefore this will determine the baseline first. One has to tell it the ToF region where no signal will appear, such that it can correctly determine the baseline.

User definable Parameters:

Processor/%name%/{TofLow|TofUp}
The time of flight range within the histogram to convert to energy. Default is 0|1.

Processor/%name%/{t0}
corrects the time of flight Default is 0.

Processor/%name%/{e0}
Retard voltage Default is 0.

Processor/%name%/{alpha}
Coefficient for converting to energy. Default is 0.

Processor/%name%/{NbrBins}
number of bins in converted histogram. Default is 0.

Processor/%name%/{tb1}
The lower limit in x for calculating the baseline. Default is 0.

Processor/%name%/{tb2}
The upper limit in x for calculating the baseline. Default is 0.

Processor/%name%/{TofName}
input 1D histogram that contains the time of flight wavetrace.

Author: Koji Motomura

Definition at line 54 of file partial_covariance.h.

Constructor & Destructor Documentation

pp400::pp400 ( const name_t & name )

constructor

Definition at line 74 of file partial_covariance.cpp.

References loadSettings().

Member Function Documentation

double pp400::calcEtoTof ( double energy )

protected

retrieve the time that corresponses to a given energy

calculate the time using function $t=\frac{\alpha}{\sqrt{e+e_0}}+t_0$ .

Returns: the calculated time

Parameters

energy the energy that one wants to calc the time for

Definition at line 129 of file partial_covariance.cpp.

References alpha, e0, and t0.

Referenced by ToftoEnergy().

void pp400::loadSettings ( size_t )

virtual

load the settings of the pp

Reimplemented from cass::Processor.

Definition at line 80 of file partial_covariance.cpp.

References cass::Processor::_condition, _pHist, _userTofRange, cass::Log::add(), alpha, QSettings::beginGroup(), bint0, bintb1, bintb2, binTofLow, binTofUp, cass::Processor::createHistList(), e0, QString::fromStdString(), cass::Log::INFO, cass::Processor::name(), NbrBins, cass::Processor::setupCondition(), cass::Processor::setupDependency(), cass::Processor::setupGeneral(), t0, tb1, tb2, cass::toString(), QSettings::value(), and cass::Result< float >::xAxis.

Referenced by pp400().

void pp400::process	(	const CASSEvent &	evt,
		result_t &	result
	)

virtual

process event

Reimplemented from cass::Processor.

Definition at line 173 of file partial_covariance.cpp.

References _pHist, bintb1, bintb2, cass::CASSEvent::id(), input, cass::Result< T >::lock, offset, and ToftoEnergy().

void pp400::ToftoEnergy	(	const result_t &	TofHisto,
		result_t &	Energy,
		double	offset
	)

protected

make the histgram in energy scale.

This function makes the histgram in energy scale. Offset value is calculated by average in range of no signal.

Parameters

TofHisto	input ToF histgram
Energy	result histgram converted to energy
offset	baseline of wavetrace

Definition at line 135 of file partial_covariance.cpp.

References _userTofRange, alpha, cass::Result< T >::axis(), calcEtoTof(), e0, NbrBins, cass::Axis< T >::pos(), t0, and cass::Result< float >::xAxis.

Referenced by process().

Member Data Documentation

shared_pointer cass::pp400::_pHist

protected

pp containing input histogram

Definition at line 91 of file partial_covariance.h.

Referenced by loadSettings(), and process().

std::pair<float,float> cass::pp400::_userTofRange

protected

the user requested Tof-axis limits

Definition at line 94 of file partial_covariance.h.

Referenced by loadSettings(), and ToftoEnergy().

double cass::pp400::alpha

protected

Coefficient to convert to energy.

Definition at line 103 of file partial_covariance.h.

Referenced by calcEtoTof(), loadSettings(), and ToftoEnergy().

size_t cass::pp400::bint0

protected

t0 converted to bin

Definition at line 124 of file partial_covariance.h.

Referenced by loadSettings().

size_t cass::pp400::bintb1

protected

tb1 converted to bin

Definition at line 127 of file partial_covariance.h.

Referenced by loadSettings(), and process().

size_t cass::pp400::bintb2

protected

tb2 converted to bin

Definition at line 130 of file partial_covariance.h.

Referenced by loadSettings(), and process().

size_t cass::pp400::binTofLow

protected

lower limit converted to bin

Definition at line 121 of file partial_covariance.h.

Referenced by loadSettings().

size_t cass::pp400::binTofUp

protected

Upper limit converted to bin.

Definition at line 118 of file partial_covariance.h.

Referenced by loadSettings().

double cass::pp400::e0

protected

retardation voltage

Definition at line 100 of file partial_covariance.h.

Referenced by calcEtoTof(), loadSettings(), and ToftoEnergy().

size_t cass::pp400::NbrBins

protected

number of bins in converted histgram

Definition at line 115 of file partial_covariance.h.

Referenced by loadSettings(), and ToftoEnergy().

double cass::pp400::offset

protected

the calculated level of baseline

Definition at line 112 of file partial_covariance.h.

Referenced by process().

double cass::pp400::t0

protected

corrects the time of flight

Definition at line 97 of file partial_covariance.h.

Referenced by calcEtoTof(), loadSettings(), and ToftoEnergy().

double cass::pp400::tb1

protected

The lower limit for calculating baseline.

Definition at line 106 of file partial_covariance.h.

Referenced by loadSettings().

double cass::pp400::tb2

protected

The upper limit for calculating baseline.

Definition at line 109 of file partial_covariance.h.

Referenced by loadSettings().

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

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation