Gradient Echo Sequences - Two pulses


The first excitation and dephasing period produces dephased transverse magnetization, which is turned by the second excitation pulse. The second dephasing period creates a more complicated distribution of transverse and longitudinal magnetization.
 
Motion of magnetization during two RF pulses and two dephasing periods (initial M = (0,0,1), T1=20TR, T2=10TR, α=50°)

Last updated: Montag, 18.04.2011