Universal Radiographic System
Service Manual
SM-0524R4
38
4.7 COLLIMATOR LAMP BRIGHTNESS TEST
Before starting with the Collimator Lamp Brightness Test, the SID
Indicator Test should be performed.
4.7.1 COLLIMATOR L IGHT FIELD INTENSITY
1. Place the Swivel Arm in vertical position. The Tube-Collimator Assembly
has to be perfectly aligned with the Bucky Assembly. Check with a level
correct horizontal position of both assemblies. (Refer to
Illustration 4-17).
Illustration 4 -17
Vertical Position
2. Position SID at 1 meter (use the SID scale of the Column).
3. Open the Collimator shutter by means of Collimator Control Knobs and
setaFieldSizeof 25x25cmforSID1m.
4. T urn on the Collimator Light and center the Collimator in relation to the
Bucky Table-Top. Horizontal and transversal position of the light axes
projected by the Collimator Lamp must be in line with the axes or Film
Size marked on the Table-Top.
Note .
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