Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Gradient field along the x-axis generated by two permanent magnets with a remanent magnetization of 125 mT. (b) Magnetic field map through the longitudinal center of the drive field at unit current. The simulated field map in the center fits to the well-known field of a Helmholtz coil. (c) Homogeneous sensitivity along the x-axis of the receive coil in the FOV
