SeqPulsar Class Reference
[Classes for sequence design (odinseq library)]

Pulsar pulses, combines OdinPulse and SeqPulsNdim. More...

#include <seqpulsar.h>

Inheritance diagram for SeqPulsar:

[legend]Collaboration diagram for SeqPulsar:

[legend]List of all members.

Public Member Functions
	SeqPulsar (const STD_string &object_label, const STD_string &pulsarfile, bool rephased=false, const dvector &phaselist=0, const dvector &freqlist=0, float grad_shift_offset=0.0, bool interactive=true)
	SeqPulsar (const STD_string &object_label="unnamedSeqPulsar")
	SeqPulsar (const SeqPulsar &sp)
	~SeqPulsar ()
SeqPulsar &	set_rephased (bool rephased)
bool	get_rephased () const
fvector	get_reph_gradintegral () const
SeqPulsar &	operator= (const SeqPulsar &sp)
SeqPulsar &	refresh ()
SeqPulsar &	set_interactive (bool flag)
int	get_dims () const
SeqFreqChanInterface &	set_nucleus (const STD_string &nucleus)
float	get_flipangle () const
SeqPulsInterface &	set_flipangle (float flipangle)
SeqPulsInterface &	set_pulsduration (float pulsduration)
SeqPulsInterface &	set_attenuation (float pulspower)
SeqPulsInterface &	set_pulse_type (pulseType type)
pulseType	get_pulse_type () const
STD_string	get_properties () const
bool	operator== (const SeqPulsar &sp) const
bool	operator< (const SeqPulsar &sp) const
bool	operator!= (const SeqPulsar &sp) const
Friends
class	SeqPulsarReph
class	SeqMethod
class	SeqMethodProxy

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Detailed Description

Pulsar pulses, combines OdinPulse and SeqPulsNdim.

This class is an interface to the Pulsar program; It is possible to access most of the parameters of the underlying data structure 'OdinPulse' via get/set functions

Definition at line 46 of file seqpulsar.h.

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Constructor & Destructor Documentation

SeqPulsar::SeqPulsar	(	const STD_string &	object_label,
		const STD_string &	pulsarfile,
		bool	rephased = false,
		const dvector &	phaselist = 0,
		const dvector &	freqlist = 0,
		float	grad_shift_offset = 0.0,
		bool	interactive = true
	)

Constructs a pulse labeled 'object_label' that was generated with the Pulsar program and saved into 'pulsarfile'. In addition, the following properties can be specified:

• rephased: If 'true', an additional gradient rephasing lobe will be added to rephase the magnetisation in case of an excitation pulse. In addition if 'true' is given, the pulseType of this pulse will be set to 'excitation', otherwise to 'refocusing'.
• phaselist: This is an array of phases at which the acquired pulse will be modulated. The actual phase for each pulse is determined by cycling through this array of phases which are represented as multiples of 90°.
• freqlist: This is an array of frequency offsets at which the pulse waveform will be modulated.
• grad_shift_offset: additional shift delay between gradient and RF channel
• interactive: When this flag is set to true, the pulse will be recalculated each time a parameter is changed, otherwise it must be done manually via the refresh() function

SeqPulsar::SeqPulsar

(

const STD_string &

object_label = "unnamedSeqPulsar"

)

Constructs an empty Pulsar pulse with the given label.

SeqPulsar::SeqPulsar

(

const SeqPulsar &

sp

)

Constructs a Pulsar pulse which is a copy of 'sp'

SeqPulsar::~SeqPulsar

(

)

Destructor

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Member Function Documentation

SeqPulsar& SeqPulsar::set_rephased

(

bool

rephased

)

Specifies whether an additional gradient rephasing lobe will be added to rephase the magnetisation in case of an excitation pulse.

bool SeqPulsar::get_rephased

(

)

const [inline]

Returns whether an additional gradient rephasing lobe will be added to rephase the magnetisation in case of an excitation pulse.

Definition at line 94 of file seqpulsar.h.

fvector SeqPulsar::get_reph_gradintegral

(

)

const

Returns the rephasers integral on all three channels

SeqPulsar& SeqPulsar::operator=

(

const SeqPulsar &

sp

)

This assignment operator will make this object become an exact copy of 'sp'.

SeqPulsar& SeqPulsar::refresh

(

)

Recalculates the pulse manually, this is only required if the pulse is not interactive

SeqPulsar& SeqPulsar::set_interactive

(

bool

flag

)

If this flag is set to true, the pulse will be recalculated each time a parameter is changed, otherwise it must be done manually via the refresh() function

int SeqPulsar::get_dims

(

)

const [virtual]

Dimensionality of the pulse

Reimplemented from SeqPulsNdim.

SeqFreqChanInterface& SeqPulsar::set_nucleus

(

const STD_string &

nucleus

)

Sets the nucleus for the pulse

Reimplemented from OdinPulse.

float SeqPulsar::get_flipangle

(

)

const [inline]

Returns the flip angle

Reimplemented from OdinPulse.

Definition at line 125 of file seqpulsar.h.

SeqPulsInterface& SeqPulsar::set_flipangle

(

float

flipangle

)

[virtual]

Sets the flip angle of the pulse

Reimplemented from SeqPulsInterface.

SeqPulsInterface& SeqPulsar::set_pulsduration

(

float

pulsduration

)

[virtual]

Sets the duration of the pulse. In case of a more complex pulse that needs some extra commands before and after the actual pulse will be played out, this function still sets the effective duration, i.e. when the RF-field is non-zero

Reimplemented from SeqPulsNdim.

SeqPulsInterface& SeqPulsar::set_attenuation

(

float

pulspower

)

[virtual]

Sets the pulse attenuation (Bruker)

Reimplemented from SeqPulsInterface.

SeqPulsInterface& SeqPulsar::set_pulse_type

(

pulseType

type

)

Sets the type of the pulse, this is necessary for calculating the pulse gain of adiabatic pulses and optimization of pulses.

Reimplemented from OdinPulse.

pulseType SeqPulsar::get_pulse_type

(

)

const [inline]

Returns the type of the pulse

Reimplemented from OdinPulse.

Definition at line 130 of file seqpulsar.h.

STD_string SeqPulsar::get_properties

(

)

const [virtual]

Returns a string describing the object

Reimplemented from SeqParallel.

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

• seqpulsar.h

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