Jinfeng Tian1, Russell Lagore1, Lance Delabarre1, and J. Thomas Vaughan1
An 8-channel dipole array is a promising structure for
human head imaging at 10.5T. In order to
optimize the structure for efficiency and homogeneity over the brain, many
variations of the dipole were numerically simulated and compared. The variations include varying dipole
lengths, warping the dipole, adding shielding, adding dielectric padding or
dielectric mirrors and including decoupling capacitors. Compared to a design in use, numerical results
predict the RF homogeneity can be greatly improved with a 210 mm dipole array
while simultaneously lowering the peak local 1 gram and 10 gram SAR.
