convert_gradients_to_slew_rates#

mrinufft.trajectories.utils.convert_gradients_to_slew_rates(gradients: ndarray[tuple[int, ...], dtype[_ScalarType_co]], acq: Acquisition | None = None, raster_time: float | None = None) → tuple[ndarray[tuple[int, ...], dtype[_ScalarType_co]], ndarray[tuple[int, ...], dtype[_ScalarType_co]]][source]#

Derive the gradients over time to provide slew rates.

Parameters:

  • gradients (NDArray) – Gradients over 2 or 3 directions.

  • acq (Acquisition, optional) – Acquisition configuration to use. If None, the default acquisition is used.

  • raster_time (float) – Raster time in seconds

Returns:

  • slewrates (NDArray) – Slew rates corresponding to gradients.

  • initial_gradients (NDArray) – Gradients at the beginning of the readout window.

Return type:

tuple[ndarray[tuple[int, …], dtype[_ScalarType_co]], ndarray[tuple[int, …], dtype[_ScalarType_co]]]