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8.5
X-ray unit settings
A setting of 60 kV is preferred provided it can be set on the X-ray unit.
The standard exposure values for F-speed film (e. g. Kodak Insight) can be used.
The following table shows the standard values for the exposure time and the dose area product of an
phosphor storage plate for an adult patient.
The information regarding the elimination time and does area product referred to the use of a VistaIntra
as an X-ray device.
µGy = image receiver dose
2
mGycm
= dose area product
Incisor
Premolar
Molar
Bitewing
Incisor
Premolar
Molar
Bitewing
Check and adjust the specific X-ray unit in accordance with the standard values.
❯
8.6
Commissioning tests
The required tests (e.g. acceptance test) must be done in accordance with local rules and regulations.
Find out which tests are required.
❯
Carry out testing in accordance with local rules and regulations.
❯
Acceptance check
The 2D X-ray test phantom, and possibly the corresponding test phantom holder as well, is
required for acceptance tests with the PSP and sensor as receivers.
Before commissioning the unit, the acceptance test of the X-ray system must be carried out in
❯
accordance with national regulations.
The constancy tests, which must be carried out at regular intervals by the surgery personnel, are
based on the results of the acceptance test.
Electrical safety checks
Carry out the electrical safety check according to national law (e. g. in accordance with IEC 62353).
❯
Document the results.
❯
2144100140L29
G8802
DC radiator, 7 mA, tube length 20 cm
Without X-ray field limitation
60 kV
µGy
0.08 s
459
0.12 s
715
0.17 s
1021
0.18 s
1080
DC radiator, 6 mA, tube length 30 cm
Without X-ray field limitation
70 kV
µGy
0.13 s
530
0.18 s
730.8
0.25 s
1024
0.27 s
1107
2310V007
X-ray field limita-
tion 2x3
2
60 kV
mGycm
14.6
0.08 s
21.9
0.12 s
31.1
0.17 s
32.9
0.18 s
X-ray field limita-
tion 2x3
2
70 kV
mGycm
11.8
0.13 s
16.4
0.18 s
22.8
0.25 s
24.6
0.27 s
Installation
X-ray field limita-
tion 3x4
2
60 kV
mGycm
3.1
0.08 s
4.6
0.12 s
6.6
0.17 s
7.0
0.18 s
X-ray field limita-
tion 3x4
2
70 kV
mGycm
2.5
0.13 s
3.4
0.18 s
4.8
0.25 s
5.2
0.27 s
EN-US
2
mGycm
6.2
9.3
13.2
14
2
mGycm
5.0
6.9
9.6
10.4
|
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