#include <GreenWakeFunction.h>

Inheritance diagram for GreenWakeFunction:

Collaboration diagram for GreenWakeFunction:

Classes
class	Wake

Public Member Functions
	~GreenWakeFunction ()
	GreenWakeFunction (const std::string &name, std::vector< Filter * > filters, int NBIN, double Z0, double radius, double sigma, int acMode, double tau, WakeDirection direction, bool constLength, std::string fname)
std::pair< int, int >	distrIndices (int vectLen)
	given a vector of length N, distribute the indexes among the available processors
void	apply (PartBunchBase< double, 3 > *bunch) override
void	setWakeFromFile (int NBin, double spacing)
	reads in the wakefield from file
virtual WakeType	getType () const override
virtual void	initialize (const ElementBase *)
const std::string &	getName () const

Protected Attributes
const unsigned int	nBins_m

Private Member Functions
template<class F>
double	simpson (F &f, double a, double b, unsigned int N)
	Simpson-Integration from the function f from a to b with N steps.
void	compEnergy (const double K, const double charge, const double lambda, double OutEnergy)
	just a Testfunction! Calculate the energy of the Wakefunction with the lambda
void	compEnergy (const double K, const double charge, std::vector< double > lambda, double *OutEnergy)
	Calculate the energy of the Wakefunction with the lambda.
void	CalcWakeFFT (double spacing)
	Calculate the FFT of the Wakefunction.

Static Private Member Functions
static std::string	getWakeDirectionString (const WakeDirection &direction)

Private Attributes
std::vector< double >	lineDensity_m
	save the line Density of the particle bunch
std::vector< double >	FftWField_m
	FFT of the zero padded wakefield.
int	NBin_m
	divides the particle bunch in NBin slices
double	Z0_m
	impedance
double	radius_m
	radius
double	sigma_m
	material constant
int	acMode_m
	conductivity either 1="AC" or 2="DC"
double	tau_m
	material constant
WakeDirection	direction_m
	direction either "Longitudinal" - "Transversal"
bool	constLength_m
	true if the length of the particle bunch is considered as constant
std::string	filename_m
	filename of the wakefield
std::vector< Filter * >	filters_m
const std::string	name_m

Static Private Attributes
static const std::map< WakeDirection, std::string >	wakeDirectiontoString_s

Detailed Description

Definition at line 42 of file GreenWakeFunction.h.

Constructor & Destructor Documentation

◆ ~GreenWakeFunction()

GreenWakeFunction::~GreenWakeFunction ( )

Definition at line 87 of file GreenWakeFunction.cpp.

◆ GreenWakeFunction()

GreenWakeFunction::GreenWakeFunction	(	const std::string &	name,
		std::vector< Filter * >	filters,
		int	NBIN,
		double	Z0,
		double	radius,
		double	sigma,
		int	acMode,
		double	tau,
		WakeDirection	direction,
		bool	constLength,
		std::string	fname )

Todo

In this code one can only apply either the longitudinal wakefield or the transversal wakefield. One should implement that both wakefields can be applied to the particle beam

NBins must be set equal to MT of the fieldsolver. This should be changed. (the length of lineDensity_m must be NBins and not to MT)

Parameters

[in]	NBIN	number of Bins
[in]	Z0	impedance of the tube
[in]	radius	radius of the tube
[in]	sigma	material constant
[in]	acMode	1 for AC and 2 for DC
[in]	tau	material constant
[in]	direction	0 for transversal and 1 for Longitudinal
[in]	constLength	true if the length of the particle bunch is considered as constant
[in]	fname	read wake from file

Definition at line 56 of file GreenWakeFunction.cpp.

References acMode_m, begin(), constLength_m, direction_m, end(), endl(), filename_m, filters_m, gmsg, lineDensity_m, name, NBin_m, radius_m, sigma_m, tau_m, WakeFunction::WakeFunction(), and Z0_m.

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Member Function Documentation

◆ apply()

void GreenWakeFunction::apply ( PartBunchBase< double, 3 > * bunch )

overridevirtual

Implements WakeFunction.

Definition at line 119 of file GreenWakeFunction.cpp.

References c, PartBunchBase< T, Dim >::calcBeamParameters(), PartBunchBase< T, Dim >::calcLineDensity(), CalcWakeFFT(), compEnergy(), constLength_m, direction_m, PartBunchBase< T, Dim >::Ef, endl(), FftWField_m, filename_m, filters_m, floor(), PartBunchBase< T, Dim >::get_bounds(), PartBunchBase< T, Dim >::getChargePerParticle(), PartBunchBase< T, Dim >::getLocalNum(), gmsg, lineDensity_m, LONGITUDINAL, NBin_m, WakeFunction::nBins_m, PAssert, PartBunchBase< T, Dim >::R, setWakeFromFile(), sqrt(), TRANSVERSAL, and Z0_m.

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◆ CalcWakeFFT()

void GreenWakeFunction::CalcWakeFFT ( double spacing )

private

Calculate the FFT of the Wakefunction.

Parameters

[in] spacing distance between 2 slice in the line distribution

Calculate the Wakefield on all processors

Reduce the results

Definition at line 376 of file GreenWakeFunction.cpp.

References a, acMode_m, direction_m, distrIndices(), FftWField_m, NBin_m, radius_m, real(), reduce(), sigma_m, simpson(), tau_m, and Z0_m.

Referenced by apply().

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◆ compEnergy() [1/2]

void GreenWakeFunction::compEnergy	(	const double	K,
		const double	charge,
		const double *	lambda,
		double *	OutEnergy )

private

just a Testfunction! Calculate the energy of the Wakefunction with the lambda

Parameters

[in]	K	a constant
[in]	charge	a constant
[in]	lambda	the distribution of the Particles
[out]	OutEnergy	this is the Output

Definition at line 259 of file GreenWakeFunction.cpp.

References FftWField_m, NBin_m, and real().

Referenced by apply().

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◆ compEnergy() [2/2]

void GreenWakeFunction::compEnergy	(	const double	K,
		const double	charge,
		std::vector< double >	lambda,
		double *	OutEnergy )

private

Calculate the energy of the Wakefunction with the lambda.

Parameters

[in]	K	a constant
[in]	charge	a constant
[in]	lambda	the distribution of the Particles
[out]	OutEnergy	this is the Output

Definition at line 319 of file GreenWakeFunction.cpp.

References FftWField_m, NBin_m, and real().

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◆ distrIndices()

std::pair< int, int > GreenWakeFunction::distrIndices ( int vectLen )

given a vector of length N, distribute the indexes among the available processors

Todo: make this function general available

Parameters

[in]	length	of vector
[out]	first	lowIndex, second: hiIndex

Definition at line 104 of file GreenWakeFunction.cpp.

References IpplInfo::getNodes(), and IpplInfo::myNode().

Referenced by CalcWakeFFT().

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◆ getName()

const std::string & WakeFunction::getName ( ) const

inlineinherited

Definition at line 49 of file WakeFunction.h.

References name_m.

◆ getType()

WakeType GreenWakeFunction::getType ( ) const

overridevirtual

Implements WakeFunction.

Definition at line 532 of file GreenWakeFunction.cpp.

References GreenWakeFunction.

◆ getWakeDirectionString()

std::string GreenWakeFunction::getWakeDirectionString ( const WakeDirection & direction )

staticprivate

Definition at line 536 of file GreenWakeFunction.cpp.

References wakeDirectiontoString_s.

◆ initialize()

virtual void WakeFunction::initialize ( const ElementBase * )

inlinevirtualinherited

Reimplemented in CSRIGFWakeFunction, and CSRWakeFunction.

Definition at line 43 of file WakeFunction.h.

Referenced by ParallelTTracker::computeWakefield().

◆ setWakeFromFile()

void GreenWakeFunction::setWakeFromFile	(	int	NBin,
		double	spacing )

reads in the wakefield from file

Definition at line 456 of file GreenWakeFunction.cpp.

References endl(), FftWField_m, filename_m, name, NBin_m, and real().

Referenced by apply().

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◆ simpson()

template<class F>

double GreenWakeFunction::simpson	(	F &	f,
		double	a,
		double	b,
		unsigned int	N )

inlineprivate

Simpson-Integration from the function f from a to b with N steps.

Parameters

[in]	f	the function to integrate
[in]	a	integrate from a
[in]	b	integrate to b
[in]	N	Number of integration points

Returns: function value of the integration

Definition at line 141 of file GreenWakeFunction.h.

References a, and PAssert.

Referenced by CalcWakeFFT().

Member Data Documentation

◆ acMode_m

int GreenWakeFunction::acMode_m

private

conductivity either 1="AC" or 2="DC"

Definition at line 175 of file GreenWakeFunction.h.

Referenced by CalcWakeFFT(), and GreenWakeFunction().

◆ constLength_m

bool GreenWakeFunction::constLength_m

private

true if the length of the particle bunch is considered as constant

Definition at line 181 of file GreenWakeFunction.h.

Referenced by apply(), and GreenWakeFunction().

◆ direction_m

WakeDirection GreenWakeFunction::direction_m

private

direction either "Longitudinal" - "Transversal"

Definition at line 179 of file GreenWakeFunction.h.

Referenced by apply(), CalcWakeFFT(), and GreenWakeFunction().

◆ FftWField_m

std::vector<double> GreenWakeFunction::FftWField_m

private

FFT of the zero padded wakefield.

Definition at line 164 of file GreenWakeFunction.h.

Referenced by apply(), CalcWakeFFT(), compEnergy(), compEnergy(), and setWakeFromFile().

◆ filename_m

std::string GreenWakeFunction::filename_m

private

filename of the wakefield

Definition at line 183 of file GreenWakeFunction.h.

Referenced by apply(), GreenWakeFunction(), and setWakeFromFile().

◆ filters_m

std::vector<Filter*> GreenWakeFunction::filters_m

private

Definition at line 185 of file GreenWakeFunction.h.

Referenced by apply(), and GreenWakeFunction().

◆ lineDensity_m

std::vector<double> GreenWakeFunction::lineDensity_m

private

save the line Density of the particle bunch

Definition at line 162 of file GreenWakeFunction.h.

Referenced by apply(), and GreenWakeFunction().

◆ name_m

const std::string WakeFunction::name_m

privateinherited

Definition at line 55 of file WakeFunction.h.

Referenced by getName(), and WakeFunction().

◆ NBin_m

int GreenWakeFunction::NBin_m

private

divides the particle bunch in NBin slices

Definition at line 167 of file GreenWakeFunction.h.

Referenced by apply(), CalcWakeFFT(), compEnergy(), compEnergy(), GreenWakeFunction(), and setWakeFromFile().

◆ nBins_m

const unsigned int WakeFunction::nBins_m

protectedinherited

Definition at line 52 of file WakeFunction.h.

Referenced by GreenWakeFunction::apply(), CSRIGFWakeFunction::calculateLineDensity(), CSRWakeFunction::calculateLineDensity(), and WakeFunction().

◆ radius_m

double GreenWakeFunction::radius_m

private

radius

Definition at line 171 of file GreenWakeFunction.h.

Referenced by CalcWakeFFT(), and GreenWakeFunction().

◆ sigma_m

double GreenWakeFunction::sigma_m

private

material constant

Definition at line 173 of file GreenWakeFunction.h.

Referenced by CalcWakeFFT(), and GreenWakeFunction().

◆ tau_m

double GreenWakeFunction::tau_m

private

material constant

Definition at line 177 of file GreenWakeFunction.h.

Referenced by CalcWakeFFT(), and GreenWakeFunction().

◆ wakeDirectiontoString_s

const std::map< WakeDirection, std::string > GreenWakeFunction::wakeDirectiontoString_s

staticprivate

Initial value:

= {
    {WakeDirection::TRANSVERSAL,  "TRANSVERSAL"},
    {WakeDirection::LONGITUDINAL, "LONGITUDINAL"},
}

Definition at line 36 of file GreenWakeFunction.h.

Referenced by getWakeDirectionString().

◆ Z0_m

double GreenWakeFunction::Z0_m

private

impedance

Definition at line 169 of file GreenWakeFunction.h.

Referenced by apply(), CalcWakeFFT(), and GreenWakeFunction().

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

Classes

Public Member Functions

Protected Attributes

Private Member Functions

Static Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ~GreenWakeFunction()

◆ GreenWakeFunction()

Member Function Documentation

◆ apply()

◆ CalcWakeFFT()

◆ compEnergy() [1/2]

◆ compEnergy() [2/2]

◆ distrIndices()

◆ getName()

◆ getType()

◆ getWakeDirectionString()

◆ initialize()

◆ setWakeFromFile()

◆ simpson()

Member Data Documentation

◆ acMode_m

◆ constLength_m

◆ direction_m

◆ FftWField_m

◆ filename_m

◆ filters_m

◆ lineDensity_m

◆ name_m

◆ NBin_m

◆ nBins_m

◆ radius_m

◆ sigma_m

◆ tau_m

◆ wakeDirectiontoString_s

◆ Z0_m