Spinach Bloch Equation Gradient Echo

[jackandrews_mrf]

Hi All,

My goal is to use Spinach for a gradient echo with multiple excitation pulses.
Does anyone have an idea for how to complete this using Spinach?

Thanks.

[kuprov]

Just modify one of the imaging examples and pulse sequences - the job sounds straightforward.

[jackandrews_mrf]

Thank you very much for the reply.
My current implementation is included below:

for n = 1:number_of_frames
traj(:,end) = step(spin_system, parameters.pulse_op, traj(:,end), pi/6);
traj = evolution(spin_system, L, [], traj(:, end), defined_echo_time / (100-1), 100-1, 'trajectory');
record_the_signal_at_echo_time = parameters.coil'*traj;
fid = [fid record_the_signal_at_echo_time(1,50)];
traj = evolution(spin_system, L, [], traj(:,end), (defined_repetition_time - defined_echo_time) / (50-1), 50-1, 'trajectory');
end

Do you recommend another method for looping through multiple excitation pulses?

Thanks.

[kuprov]

This is actually very nearly optimal - good thinking!