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

Figure 4

Calculated 𝐵₁-field at the center of the coil. (a) PML with 𝑁_𝑝=10 and 𝑁_𝑠=10. The 𝐵₁-field is stable after 40 000 time steps; (b) PML with 𝑁_𝑝=5 and 𝑁_𝑠=5. The 𝐵₁-field increases monotonically even after 100 000 time steps.

(a)

(b)