om 5184516-100 Rev. 5 10-10
cal alignment is not critical, and tilted tube techniques may be used without undue
cutoff.
3-13Manual Cassette Tray
The center of the cassette tray handle is marked to indicate the vertical center of
the bucky. Move the Bucky or the tube in order to align the collimator light with this
center
mark. This assures that the Bucky is aligned vertically with the X-ray beam (see
also collimator operating manual). The Bucky handle may need to be pulled out to
allow the collimator light to shine on it.
3-14Alignment for Automatic Collimation
Systems using an automatic collimator require accurate positioning for the tube
unit and Bucky. Exposures will be permitted at specific source-to-image distances
only.
Angular positions of the collimator are sensed to determine the mode of operation
of the collimator. The tube unit must be oriented with the X-ray beam directed
toward the Bucky within +
10° for automatic operation of the collimator. If these
conditions are not met, the collimator will be in the manual mode of operation.
For complete details, refer to the collimator operating manual.
FOR TRAINING PURPOSES ONLY!
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