Figure 6.

Measured and calculated crossbeam profiles in water at different depths (1.9 cm, 3.7 cm, and 4.9 cm) for a $10\times 10\hspace{0.17em}{\text{cm}}^2$ field size at 12 MeV and $\text{SSD}=110\hspace{0.17em}\text{cm}$. Measurements were performed with an ionization chamber. All beam profiles were normalized according to the measured and calculated depth‐dose curve.