X-ray

machine

Total filtration (mm Al)

kVp

Predicted output

Measured output

Output ratios

1

3.2

60

26.00

26.10

0.99

70

37.16

35.80

1.03

80

50.37

48.13

1.04

100

79.47

73.94

1.07

2

4.4

60

18.98

21.70

0.87

70

28.11

31.04

0.90

80

38.83

43.75

0.88

100

64.36

72.95

0.88

3

5.5

60

13.74

16.66

0.82

70

21.13

25.33

0.83

80

30.03

35.05

0.85

100

51.91

59.25

0.87

4

3.5

60

24.30

30.16

0.80

70

35.01

41.61

0.84

80

47.31

56.4

0.83

100

75.96

88.15

0.86

5

3

60

27.87

32.94

0.84

70

39.54

44.99

0.87

80

52.81

56.25

0.93

100

83.29

85.7

0.97