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