Phantom Radiograph - Sirona Orthophos 3 Maintenance Manual

Sirona Dental Systems GmbH
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I
3
O
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5
RADIATION
X-RAY
P I
6 0
kV
I 0
m

Phantom Radiograph

• Diaphragm 1 is still adjusted at the diaphragm wheel.
1. Fit the needle phantom up to stop.
2. Cut out two paper strips as large as the film size.
Place the film between the paper strips in the dark room – making sure film and paper strips are
level with the bottom of the cassette!
Attach film cassette to the unit's cassette holder
3. Switch unit ON and wait 1 min. for self-adjustment of the unit.
4. Select P1 and lowest kV. Press return key R , the X-ray head moves into start position!
5. CAUTION RADIATION! Initiate the exposure for a complete rotating cycle.
6. Process the film.
7. Check the film: Measure the
line distances on the film as shown.
• If the distances exceed the above tolerances, actuator M2 must be adjusted –
see Service Manual.
59 01 603 D3285
D3285.103.04.02.02
4.
1 Un-
exposed
margin
4.
2
(The paper strips are needed to neutralize the intensifying screens).
0
l___ .___ . ___ .___ . ___ .___ . ___. ___. _ l _ .
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2
Cassette
Paper
Film
Paper
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6
7. a
1
84 - 85.5mm
Line distances
3 5/16" - 3 6/16"
(For details see Operating Instructions)
Maintenance Instructions
1.
Process film
±0.5mm
a
a =a
2 1 2
±1/50"
.
84 - 85.5mm
3 5/16" - 3 6/16"
17