Description of the hardware limitations, such as $B_0$, $B_1$, $G_{\max}$, and $S_{\max}$.
It is also possible to include field imperfections as an additional term $\Delta \boldsymbol{B}(\boldsymbol{x},\boldsymbol{G})$.
Sequence of pulses, including the gradients $\boldsymbol{G}(t)$ and RF $B_{1,e}(t)$ signals.
It can also visualize the $k$-space of the acquisistion.
Definition of the phantom model, includes information about the proton density $\rho$, $\mathrm{T1}$, $\mathrm{T2}$, off-resonance $\Delta\omega$, diffusion, and displacement field $\boldsymbol{u}(\boldsymbol{x},t)$.