Table 8 Calibration Accuracy using the regression parameters
Target/filter and kV combination | Within-unit calibration: H1 | Within-unit calibration: H2 | Target/filter and kV combination | Within-unit calibration: H3 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Non-BL height (cm) | BL | Non-BL | BL | Non-BL | Non-BL height (cm) | BL | Non-BL | ||||
W/Rh | Mo/Mo | ||||||||||
kV = | 25 | -- | -- | -- | -- | -- | kV = | 25 | 4.2 | 62.8 (0.53) | 63.3 (0.92) |
26 | 4.2 | 50.9 (0.37) | 53.1 (0.70) | 55.8 (0.43) | 57.8 (0.80) | 26 | 4.4 | 60.8 (0.43) | 61.5 (0.51) | ||
27 | 4.4 | 51.6 (0.36) | 52.7 (0.44) | 55.4 (0.43) | 54.8 (0.84) | 27 | 4.2 | 61.2 (0.36) | 61.2 (0.74) | ||
28 | 4.2 | 53.6 (0.40) | 55.2 (0.68) | 57.9 (0.72) | 59.8 (0.97) | 28 | 4.4 | 63.5 (0.25) | 64.5 (0.36) | ||
29 | 4.4 | 49.3 (0.49) | 51.4 (0.54) | 52.7 (0.57) | 55.7 (0.65) | 29 | 4.2 | 58.0 (0.18) | 59.2 (0.58) | ||
30 | 4.2 | 49.6 (0.71) | 50.8 (0.81) | 53.2 (0.52) | 54.0 (0.90) | 30 | 4.4 | 57.7 (0.20) | 59.7 (0.33) | ||
31 | -- | -- | -- | -- | -- | 31 | 4.2 | 58.2 (0.33) | 59.7 (0.53) | ||
W/Ag | Mo/Rh | ||||||||||
kV = | 27 | 4.2 | 47.5 (0.73) | 49.5 (0.93) | 52.9 (0.54) | 55.3 (0.90) | kV = | 27 | 4.2 | 55.8 (1.55) | 57.5 (1.74) |
28 | 4.4 | 48.5 (0.84) | 50.4 (0.97) | 53.0 (0.52) | 54.3 (0.66) | 28 | 4.4 | 55.8 (1.54) | 58.1 (1.43) | ||
29 | 4.2 | 48.6 (0.90) | 50.2 (1.11) | 51.7 (0.49) | 54.0 (0.74) | 29 | 4.2 | 55.7 (1.55) | 57.0 (1.73) | ||
30 | 4.4 | 48.5 (0.94) | 50.0 (1.00) | 52.6 (0.52) | 53.6 (0.55) | 30 | 4.4 | 56.3 (1.45) | 58.1 (1.28) | ||
31 | 4.2 | 53.6 (0.87) | 54.8 (1.14) | 52.9 (0.50) | 53.5 (0.56) | 31 | 4.2 | 56.9 (1.39) | 58.0 (1.56) | ||
32 | 6.4 | 52.7 (0.76) | 52.5 (0.78) | 54.5 (0.57) | 54.6 (0.62) | 32 | 4.4 | 57.1 (1.26) | 58.4 (1.01) | ||
33 | -- | -- | -- | -- | -- | 33 | 4.2 | 57.4 (1.18) | 58.5 (1.33) | ||
34 | -- | -- | -- | -- | -- | 34 | 4.4 | 57.6 (1.02) | 56.9 (0.79) | ||