Sample images acquired using the PGSE and nAFP-AFS-LASER sequences with n = 1, 3, 5, and 7 for (a) Ph-1, the bead phantom, and (b) Ph-4, the nickel(II) doped water phantom. Echo-time (TE) and
are constant for each series of images. The non-uniform image signal intensity in Ph-1 is due to the heterogeneous bead-packed materials in the phantom.