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

Figure 5

(a) The influence of the angular divergency of incident electrons on PDDs for 4 × 4, 10 × 10, 30 × 30 cm² fields. (b) The influence of angular divergency of incident electron on OARs for 4 × 4, 10 × 10, 30 × 30 cm² fields at 10 cm depth. The red curve represents the dose curve when the angular divergency is 0.15°, the green curve represents the dose curve when the angular divergency is 1°, and the black curve represents the measured dose curve.

(a)

(b)