Energy

Field Size (cm2)

Dmax cm

PDD 5 cm

PDD 10 cm

PDD 20 cm

6 MV

5 × 5

1.38

0.842

0.63

0.345

10 × 10

1.38

0.862

0.666

0.382

20 × 20

1.38

0.874

0.697

0.424

40 × 40

1.38

0.883

0.719

0.458

6 MVFFF

5 × 5

1.38

0.824

0.597

0.312

10 × 10

1.38

0.848

0.637

0.348

20 × 20

1.38

0.861

0.667

0.386

40 × 40

1.38

0.866

0.682

0.406

10 MV

5 × 5

2.38

0.914

0.718

0.439

10 × 10

2.38

0.916

0.74

0.467

20 × 20

2.18

0.917

0.754

0.495

40 × 40

1.98

0.918

0.765

0.519

10 MVFFF

5 × 5

2.38

0.90

0.692

0.407

10 × 10

2.38

0.907

0.714

0.433

20 × 20

2.18

0.91

0.729

0.458

40 × 40

1.98

0.909

0.735

0.468

15 MV

5 × 5

2.98

0.949

0.761

0.479

10 × 10

2.78

0.944

0.772

0.503

20 × 20

2.38

0.931

0.77

0.520

40 × 40

1.98

0.918

0.769

0.531