Research Article
The Study of Dosimetric Characteristics of the XHA600D Medical Linear Accelerator Based on a Monte Carlo Code
Table 7
The measured and calculated data of flatness and symmetry of FF beams. (The uncertainties of simulated flatness in FF mode of 4 × 4, 6 × 6, 8 × 8, 10 × 10, 15 × 15, 20 × 20, 25 × 25, 30 × 30 cm2 fields were as follows: 0.4%, 0.6%, 0.7%, 0.9%, 1.2%, 1.4%, 1.6%, 2% (k = 2). The uncertainties of simulated symmetry in FF mode of 4 × 4, 6 × 6, 8 × 8, 10 × 10, 15 × 15, 20 × 20, 25 × 25, 30 × 30 cm2 fields were as follows: 0.3%, 0.4%, 0.5%, 0.6%, 0.8%, 0.9%, 1%, 1.2% (k = 2).).
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