make_rf_shim

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make_rf_shim#

pypulseqpp.make_rf_shim()[source]#

Create complex per-transmit-channel weights for a block’s RF envelope.

Parameters:

shim_vector (array_like) – Complex per-channel weights, one per transmit channel.

Returns:

RF shim extension event (type == 'rf_shim') with the weights stored as complex128.

Return type:

types.SimpleNamespace

Examples

>>> import numpy as np
>>> import pypulseqpp as pp
>>> event = pp.make_rf_shim([1.0, 1j, -1.0, -1j])
>>> event.type, event.shim_vector.dtype
('rf_shim', dtype('complex128'))

Attach it alongside the RF event of a block:

seq.add_block(pulse.rf, pp.make_rf_shim(weights))
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