Fig. 6.

UISAR (a) and minimum global SAR for a 128-element (b) and a 32-element (c) transmit array associated with the excitation of a coronal FOV through the center of a homogeneous cylinder, as a function of the main magnetic field strength. Results are shown for six different radii of the cylindrical object, with a fixed 1 cm distance between the coil elements and the surface of the object. In each plot, every line (i.e., results for the same cylinder radius) is scaled by its own maximum value to limit the dynamic range and compare results between different cases more easily.