BDSFieldEMRFCavity Class Reference

Pill box cavity electro-magnetic field. More...

#include <BDSFieldEMRFCavity.hh>

Inheritance diagram for BDSFieldEMRFCavity:

Collaboration diagram for BDSFieldEMRFCavity:

Public Member Functions
	BDSFieldEMRFCavity (BDSMagnetStrength const *strength, G4double brho)
	BDSFieldEMRFCavity (G4double eFieldAmplitude, G4double frequency, G4double phaseOffset, G4double cavityRadius)
virtual std::pair< G4ThreeVector, G4ThreeVector >	GetField (const G4ThreeVector &position, const G4double t) const
	Accessor to get B and E field. More...
Public Member Functions inherited from BDSFieldEM
	BDSFieldEM ()
	BDSFieldEM (G4Transform3D transformIn)
virtual std::pair< G4ThreeVector, G4ThreeVector >	GetField (const G4ThreeVector &position, const G4double t=0) const =0
virtual void	GetFieldValue (const G4double point[4], G4double *field) const
virtual std::pair< G4ThreeVector, G4ThreeVector >	GetFieldTransformed (const G4ThreeVector &position, const G4double t) const
	Get the field value after applying transform for local offset. More...
virtual void	SetTransform (const G4Transform3D &transformIn)
virtual G4bool	DoesFieldChangeEnergy () const
	Required overload by Geant4. More...
G4bool	FiniteStrength () const
	Accessor. More...

Private Member Functions
	BDSFieldEMRFCavity ()
	Private constructor to force use of provided one.

Private Attributes
G4double	eFieldMax
	Maximum field in V/m. More...
G4double	frequency
	Angular frequency. More...
G4double	phase
	Phase offset of the oscillator. More...
G4double	cavityRadius
	Radius at maximum extent of cavity. More...
const G4double	normalisedCavityRadius
	Pre-calculated normalised calculated radius w.r.t. bessel first 0. More...
const G4double	angularFrequency
	Angular frequency calculated from frequency - cached to avoid repeated calculation. More...

Static Private Attributes
static const G4double	j0FirstZero = 2.404825557695772768622
	X coordinate of first 0 point for bessel J0. More...
static const G4double	Z0 = CLHEP::mu0 * CLHEP::c_light
	Impedance of free space. More...

Additional Inherited Members
Protected Attributes inherited from BDSFieldEM
G4bool	finiteStrength
	Flag to cache whether finite nor not. More...
G4Transform3D	transform
	Transform to apply for the field relative to the local coordinates of the geometry. More...

Detailed Description

Pill box cavity electro-magnetic field.

Author

Stuart Walker

Definition at line 38 of file BDSFieldEMRFCavity.hh.

Constructor & Destructor Documentation

BDSFieldEMRFCavity() [1/2]

BDSFieldEMRFCavity::BDSFieldEMRFCavity	(	BDSMagnetStrength const *	strength,
		G4double	brho
	)

Definition at line 37 of file BDSFieldEMRFCavity.cc.

BDSFieldEMRFCavity() [2/2]

BDSFieldEMRFCavity::BDSFieldEMRFCavity	(	G4double	eFieldAmplitude,
		G4double	frequency,
		G4double	phaseOffset,
		G4double	cavityRadius
	)

Definition at line 47 of file BDSFieldEMRFCavity.cc.

~BDSFieldEMRFCavity()

virtual BDSFieldEMRFCavity::~BDSFieldEMRFCavity ( )

inlinevirtual

Definition at line 49 of file BDSFieldEMRFCavity.hh.

Member Function Documentation

GetField()

std::pair< G4ThreeVector, G4ThreeVector > BDSFieldEMRFCavity::GetField ( const G4ThreeVector &  position, const G4double  t  ) const

virtual

Accessor to get B and E field.

Implements BDSFieldEM.

Definition at line 59 of file BDSFieldEMRFCavity.cc.

References angularFrequency, eFieldMax, j0FirstZero, normalisedCavityRadius, phase, and Z0.

Field Documentation

angularFrequency

const G4double BDSFieldEMRFCavity::angularFrequency

private

Angular frequency calculated from frequency - cached to avoid repeated calculation.

Definition at line 74 of file BDSFieldEMRFCavity.hh.

Referenced by GetField().

cavityRadius

G4double BDSFieldEMRFCavity::cavityRadius

private

Radius at maximum extent of cavity.

Definition at line 62 of file BDSFieldEMRFCavity.hh.

eFieldMax

G4double BDSFieldEMRFCavity::eFieldMax

private

Maximum field in V/m.

Definition at line 59 of file BDSFieldEMRFCavity.hh.

Referenced by GetField().

frequency

G4double BDSFieldEMRFCavity::frequency

private

Angular frequency.

Definition at line 60 of file BDSFieldEMRFCavity.hh.

j0FirstZero

const G4double BDSFieldEMRFCavity::j0FirstZero = 2.404825557695772768622

staticprivate

X coordinate of first 0 point for bessel J0.

Definition at line 65 of file BDSFieldEMRFCavity.hh.

Referenced by GetField().

normalisedCavityRadius

const G4double BDSFieldEMRFCavity::normalisedCavityRadius

private

Pre-calculated normalised calculated radius w.r.t. bessel first 0.

Definition at line 71 of file BDSFieldEMRFCavity.hh.

Referenced by GetField().

phase

G4double BDSFieldEMRFCavity::phase

private

Phase offset of the oscillator.

Definition at line 61 of file BDSFieldEMRFCavity.hh.

Referenced by GetField().

Z0

const G4double BDSFieldEMRFCavity::Z0 = CLHEP::mu0 * CLHEP::c_light

staticprivate

Impedance of free space.

Definition at line 68 of file BDSFieldEMRFCavity.hh.

Referenced by GetField().

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

• /Users/nevay/physics/reps/bdsim/include/BDSFieldEMRFCavity.hh
• /Users/nevay/physics/reps/bdsim/src/BDSFieldEMRFCavity.cc