Table of Contents
Advertisement
12-10
Start-up and functional test of the IONTOMAT
Checking cut-off dose and resolution (§16 Germany)
This test is only required in the Federal Republic of Germany in the area of application of
the X-ray decree. The result must be entered in page 9 of the acceptance test certificate
supplied. Both tables must be checked.
Ascertain the cut-off dose (K
Test arrangement (front view)
1st exposure
NORMI 7
test body
Procedure:
1
Select 30 kV and AEC (Iontomat) on the control panel.
2
Place the NORMI 7 test body on the object table flush with the chest wall side.
3
Slide film cassette into the object table.
4
Trigger the first exposure.
5
Note the mAs reading (Q
6
Develop the film. Measure the resolution (R
form.
7
Position the dosimeter chamber in the cassette slot.
8
Select 250 mAs on the control panel.
9
Trigger second exposure.
10 Record the dose value (K
(Q
G(2)
11 Calculate and record the cut-off dose as follows:
Siemens-Elema AB
Solna, Sweden
) and resolution (R
B
Radiographic system
Film cassette
Double detector
G(1)
B(2)
)
K
=
K
B 2 ( )
B
SPS-UD
RX B7-120.033.01.10.02
) with the NORMI 7 test body
g
2nd exposure
NORMI 7
test body
) shown on the control panel.
) and the density (D) and enter in the
g
) measured as well as the associated mAs reading
Q
G 1 ( )
⋅
-------------
Q
g 2 ( )
05.98
Radiographic system
Dosimeter chamber
Double detector
MAMMOMAT 300
65 02 186
Advertisement
Table of Contents
