Parameters | Categories | N | Mean | Standard deviations | F-value | P-value |
Energy (MV) | 6 | 72 | 2.5111 | 3.88005 | 3.889* | 0.05 |
15 | 72 | 1.5375 | 1.56488 | |||
Depth (cm) | Dmax | 48 | 1.125 | 0.99648 | 4.594* | 0.012 |
10 | 48 | 2.0188 | 3.2922 | |||
20 | 48 | 2.9292 | 3.69784 | |||
Field sizes (cm2) | 10 × 10 | 48 | 0.8938 | 0.78018 | 10.424** | 0 |
15 × 15 | 48 | 1.7208 | 2.09274 | |||
20 × 20 | 48 | 3.4583 | 4.32203 | |||
Wedge type | Physical | 72 | 2.05 | 3.80289 | 0.011NS | 0.918 |
Virtual | 72 | 1.9986 | 1.87643 | |||
Wedge angle (˚) | 15 | 36 | 0.8528 | 0.88236 | 6.658** | 0 |
30 | 36 | 1.3028 | 1.43696 | |||
45 | 36 | 2.3611 | 2.97045 | |||
60 | 36 | 3.5806 | 4.50116 |