PRESS sequence with shaped refocusing pulses.

seq_press_2d_shaped(
  spin_params,
  ft,
  ref,
  TE1 = 0.01,
  TE2 = 0.02,
  pulse_file,
  pulse_dur,
  pulse_file_format,
  refoc_flip_angle = 180,
  xy_pulse_ppm = NULL,
  resamp = TRUE,
  fs_resamp = 1e-04
)

Arguments

spin_params: spin system definition.
ft: transmitter frequency in Hz.
ref: reference value for ppm scale.
TE1: TE1 sequence parameter in seconds (TE=TE1+TE2).
TE2: TE2 sequence parameter in seconds.
pulse_file: path to refocusing pulse file.
pulse_dur: refocusing pulse duration.
pulse_file_format: file format for the refocusing pulse.
refoc_flip_angle: refocusing pulse flip angle in degrees (defaults to 180).
xy_pulse_ppm: a vector of ppm values for the offset of each sub-simulation.
resamp: option to resample the pulse shape.
fs_resamp: sampling frequency (Hz) to resample.

Value

list of resonance amplitudes and frequencies.