In the following tables the CTDI values measured in one of the four locations at 1 centimeter from the phantom surface
in each selectable CBCT condition of operation are listed. Three tables are reported, each referred to a different patient
selection: man, woman, child. Please note that CTDI values are presented both as absolute value (CTDI [mGy] column) and
as relative value (CTDI normalized), which correspond to the absolute value normalized to the CTDI in the center location of
the dosimetry phantom.
Patient selection: man
FOV Size Quality
Tube
Voltage
[kV]
Anodic
Current
[mA]
Exposure
Duration
[s]
Current
Time
Product
[mAs]
CTDI
[mGy]
CTDI
normalized
40 x 40 mm
Small Standard 90 6.0 6.0 36.0 0.74 0.66
Medium Standard 90 8.0 6.0 48.0 0.94 0.84
Large Standard 90 10.0 6.0 60.0 1.24 1.10
Small Medium 90 6.0 7.2 43.2 0.74 0.66
Medium Medium 90 8.0 7.2 57.6 1.12 1.00
Large Medium 90 10.0 7.2 72.0 1.41 1.26
Small High 90 6.0 9.0 54.0 1.07 0.96
Medium High 90 8.0 9.0 72.0 1.38 1.23
Large High 90 10.0 9.0 90.0 1.54 1.37
60 x 60 mm
Small Standard 90 6.0 6.0 36.0 1.82 1.62
Medium Standard 90 8.0 6.0 48.0 2.53 2.25
Large Standard 90 10.0 6.0 60.0 3.03 2.70
Small Medium 90 6.0 7.2 43.2 2.21 1.97
Medium Medium 90 8.0 7.2 57.6 2.93 2.61
Large Medium 90 10.0 7.2 72.0 3.70 3.30
Small High 90 6.0 9.0 54.0 2.80 2.49
Medium High 90 8.0 9.0 72.0 3.54 3.15
Large High 90 10.0 9.0 90.0 4.64 4.13
80 x 80 mm
Small Standard 90 6.0 6.0 36.0 2.30 2.04
Medium Standard 90 8.0 6.0 48.0 3.06 2.72
Large Standard 90 10.0 6.0 60.0 3.56 3.17
Small Medium 90 6.0 7.2 43.2 2.81 2.51
Medium Medium 90 8.0 7.2 57.6 3.64 3.24
Large Medium 90 10.0 7.2 72.0 4.53 4.04
Small High 90 6.0 9.0 54.0 3.39 3.02
Medium High 90 8.0 9.0 72.0 4.49 4.00
Large High 90 10.0 9.0 90.0 5.64 5.02
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