Fluke Biomedical 07-645 User Manual
Page 9
Instructions
Discussion
1
1-5
Table 1-2.
Percent Contrast for Fluoro-Test Threshold Contrast Resolution Plates with1
mm Cu Attenuator.
kVp
Hole
Number
50 60 70 80 90 100 110 120 130
0.5 0.91
0.72
0.61
0.55
0.50 0.47 0.46 0.44 0.43
1 1.83
1.44
1.22
1.09
1.01 0.95 0.93 0.89 0.86
1.5 2.74
2.16
1.84
1.64
1.51 1.43 1.39 1.33 1.28
2 3.65
2.88
2.45
2.19
2.02 1.90 1.85 1.78 1.71
2.5 4.57
3.61
3.06
2.73
2.52 2.38 2.32 2.22 2.14
3 5.48
4.33
3.67
3.28
3.03 2.85 2.78 2.67 2.57
3.5 6.39
5.05
4.29
3.83
3.54 3.33 3.25 3.11 3.00
4 7.31
5.77
4.90
4.38
4.04 3.80 3.71 3.56 3.43
4.5 8.22
6.49
5.51
4.92
4.55 4.28 4.17 4.00 3.86
5 9.13
7.21
6.12
5.47
5.05 4.75 4.64 4.45 4.28
5.5 10.05
7.94 6.74
6.02
5.56 5.23 5.10 4.90 4.71
6 10.96
8.66
7.35
6.57
6.06 5.70 5.57 5.34 5.14
6.5 11.88
9.38 7.96
7.11
6.57 6.18 6.03 5.79 5.57
7 12.79
10.10
8.58
7.66
7.07 6.66 6.50 6.23 6.00
7.5 13.71
10.82
9.19
8.21
7.58 7.13 6.96 6.68 6.43
8 14.62
11.55
9.80
8.76
8.09 7.61 7.42 7.12 6.86
8.5 15.54
12.27
10.42
9.30
8.59 8.08 7.89 7.57 7.29
9 16.45
12.99
11.03
9.85
9.10 8.56 8.35 8.02 7.72