
64 94 954 D3632
162
D3632
.
201.03.08
.
23 07.2018
8 Settings and repair
Dentsply Sirona
8.1 Program values
Operating Instructions Orthophos SL 2D / 3D
8.1.5.2
Dose area product parameters for Ceph-images
8.1.5.3
Calculate dosage
For any freely programmed parameter combinations, you must
calculate the value using the kV/DAP lists; see sample calculation:
Explanation
Art. 3.3 of the X-Ray Ordinance requires that the system must include
either devices that show the
DAP display for the radiation exposure of the patient, or that this
information can be derived e.g. from tables.
The manufacturers of dental equipment have agreed on using the same
measurement method. To compensate for measuring errors as well as for
system and instrument variations, a tolerance of 20 % must be taken into
account.
The radiation exposure is specified as the dose area product (DAP) of the
absorbed dose (Gy x cm
2
) per mAs for each unit as well as each
selectable kV level and diaphragm.
Calculation:
The values indicated below have been calculated for the parameter
combinations proposed by Dentsply Sirona. If other settings are used,
with the help of kV/DFP lists, proceed as follows:
1. Select the set kV level from the table of the respective X-ray system
and note down the DAP factor.
2. Multiply the DAP factor by the actually used mA (as indicated on the
X-ray system).
3. Multiply the result by the actual exposure time (see Multitimer or
table).
Progra
m
Max.
exposure time
Factory-programmed values
kV/mA
DAP
mGycm
2
kV/mA
DAP
mGycm
2
kV/mA
DAP
mGycm
2
kV/mA
DAP
mGycm
2
Quick
shot
Quick
shot
Quick
shot
Quick
shot
Quick
shot
C1
9.1s
6.1 s 80/14 24
16
80/14 24
16
84/13 25
17
90/12 26
18
C2
9.1s
6.1 s 80/14 24
16
80/14 24
16
84/13 25
17
90/12 26
18
C3
9.4s
4.7s
73/15 22
11
73/15 22
11
77/14 23
12
84/13 26
13
C3
30x23
14.9s 7.5 s 73/15 35
18
73/15 35
18
77/14 37
19
84/13 40
21
C4
9.1s
4.6s
64/16 18
9
64/16 18
9
64/16 18
9
64/16 18
9
Содержание Orthophos SL 2D
Страница 2: ......