C-12
i-CAT FLX Technical Guide
032-0328-EN Rev K
CTDI Free-air
- Approximated a 100 mm CTDI from a free in air exposure. Included for reference
only.
Mid Scan Dose
- A weighted dose estimate designed to approximate dose in a phantom from a
single large width scan or a continuous helical scan. This may be a better measurement for
approximating dose for CBCT. This measurement uses a single very small energy compensated
solid-state detector. This detector approximates the dose seen by a voxel of tissue from primary
beam incident to it, as well as scatter from adjacent areas exposed to the same beam. Data was
collected with an RTI Piranha electrometer connected to a 0.3 mm solid state, energy
compensated detector in a 16 cm AAPM head phantom.
All dose values are in mGy.
Scan
Time
(sec)
kVp
mA
mAs
13 cm (Height)
11 cm (Height)
10 cm (Height)
CTDI
w
CTDI
Free
air
Mid
Scan
Dose
CTDI
w
CTDI
Free
air
Mid
Scan
Dose
CTDI
w
CTDI
Free
air
Mid
Scan
Dose
8.9
120
5
18.54
1.9
2.5
2.1
1.9
2.5
1.9
1.9
2.5
1.9
4.8
120
5
10.11
1.0
1.3
1.2
1.0
1.3
1.1
1.0
1.3
1.0
4.8
90
3
6.1
0.3
0.4
0.3
0.3
0.4
0.3
0.3
0.3
0.3
26.9
120
5
37.07
3.8
4.9
4.2
3.9
5.0
3.9
3.6
4.7
3.8
14.7
120
5
20.27
2.1
2.7
2.1
2.1
2.7
2.0
2.0
2.6
2.1
Scan
Time
(sec)
kVp
mA
mAs
8 cm (Height)
6 cm (Height)
4 cm (Height)
CTDI
w
CTDI
Free
air
Mid
Scan
Dose
CTDI
w
CTDI
Free
air
Mid
Scan
Dose
CTDI
w
CTDI
Free
air
Mid
Scan
Dose
8.9
120
5
18.54
2.0
2.6
1.7
2.0
2.6
1.5
2.1
2.8
1.2
4.8
120
5
10.11
1.0
1.3
1.0
1.0
1.3
0.8
1.6
2.1
0.7
4.8
90
3
6.1
0.3
0.4
0.3
0.3
0.4
0.2
0.3
0.4
0.2
26.9
120
5
37.07
4.0
5.2
3.5
4.0
5.2
3.0
4.2
5.5
2.5
14.7
120
5
20.27
2.1
2.7
1.9
2.1
2.7
1.6
2.2
2.9
1.3
Summary of Contents for FLX V Series
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Page 60: ...A 8 i CAT FLX Technical Guide 032 0328 EN Rev K ...
Page 78: ...B 18 i CAT FLX Technical Guide 032 0328 EN Rev K Scanner Dimensions TOP VIEW FRONT VIEW ...
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