STEAM sequence with ideal pulses and coherence order filtering to simulate gradient crushers.

Source: R/pulse_sequences.R

See Landheer et al NMR Biomed 2021 34(5):e4129 and Landheer et al MRM 2019 Apr;81(4):2209-2222 for more details on the coherence order filtering method.

seq_steam_ideal_cof(spin_params, ft, ref, TE = 0.03, TM = 0.02, amp_scale = 2)

Arguments

spin_params

spin system definition.

ft

transmitter frequency in Hz.

ref

reference value for ppm scale.

TE

sequence parameter in seconds.

TM

sequence parameter in seconds.

amp_scale

amplitude scaling factor. Set to 2 (default) to ensure correct scaling for water reference scaling. Set to 1 to maintain the inherent loss of signal associated with STEAM.

Value

list of resonance amplitudes and frequencies.