Assessment of a PML Boundary Condition for Simulating an MRI Radio Frequency Coil

Figure 5

Maximum deviations of the calculated 𝐵₁-field within a circular region positioned in axial plane at the center of the coil. This region has a diameter that is 80% of the coil’s diameter. The results are presented at 127.72 MHz, the (a) Larmor frequency of ¹H at 3 T after iterations of 40 cycles and (b) after iterations of 120 cycles.

(a)

(b)