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Table 2 The determined field sizes from the fitting curves for all profiles

From: Simplified sigmoidal curve fitting for a 6 MV FFF photon beam of the Halcyon to determine the field size for beam commissioning and quality assurance

 

Field Size (cm2)

RD DFS (cm)

MD DFS (cm)

 

2 × 2

1.80

1.82

 

4 × 4

3.64

3.66

Depth

6 × 6

5.42

5.54

1.30 cm

8 × 8

7.26

7.20

 

10 × 10

9.12

9.00

 

20 × 20

18.18

18.20

 

28 × 28

25.56

25.36

Depth

2 × 2

1.90

1.84

5.00 cm

4 × 4

3.76

3.68

 

6 × 6

5.64

5.56

 

8 × 8

7.56

7.48

 

10 × 10

9.44

9.38

 

20 × 20

18.94

18.96

 

28 × 28

26.56

26.50

Depth

10.00 cm

2 × 2

1.98

1.96

 

4 × 4

4.00

3.94

 

6 × 6

5.94

5.90

 

8 × 8

7.96

7.88

 

10 × 10

9.96

9.98

 

20 × 20

19.88

19.92

 

28 × 28

28.02

27.96

Depth

20.00 cm

2 × 2

2.18

2.18

 

4 × 4

4.38

4.34

 

6 × 6

6.56

6.44

 

8 × 8

8.76

8.80

 

10 × 10

10.94

10.94

 

20 × 20

21.68

21.90

 

28 × 28

30.76

30.96

  1. Reference Data Determination of Field Size: RD DFS, Measured Data Determination of Field Size: MD DFS
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Radiation Oncology

ISSN: 1748-717X

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