The Study of Dosimetric Characteristics of the XHA600D Medical Linear Accelerator Based on a Monte Carlo Code

Figure 7

(a) The comparison of measured and simulated PDDs for various field sizes (cm²) of 6 MV FF beams. (b) The comparison of measured and simulated PDDs for various field sizes (cm²) of 6 MV FFF beams. All curves are normalized to the depth of the respective maximum dose. In order to show the contrast more clearly, the seven fields are split into three panels. 4 × 4, 6 × 6, 8 × 8, 10 × 10, 15 × 15, 20 × 20, 30 × 30 cm² fields are shown in order by black, red, green, blue, orange, pink, and gray curves. Solid lines represent measured data and dotted lines represent simulated data.

(a)

(b)