Figure 2.

Simulation results for short T₂ tissues (T₂s from 0 to 1 ms) with a rectangular RF pulse excitation (durations from 0.1 to 500 μs). The top two rows show color maps corresponding to the longitudinal and transverse magnetizations (i.e. $f_z\left(\alpha ,\tau ,T_2\right)$ and $f_{xy}\left(\alpha ,\tau ,T_2\right)$) calculated from Eqs. [3] and [4]. The third row shows the resulting B_1s scaling factors, and the bottom row shows the mapping function $f_z\left(\alpha ,\tau ,T_2\right)$ obtained by the AFI method. The columns represent simulation results with nominal B₁ scaling factors B_1n of 0.8, 1, and 1.2, respectively.