5-4
When performing a tube warm-up procedure for the under
table or over table x-ray tube, the operator must remember
that a tube warm up procedure produces a series of
exposures and therefore produces a small amount of
scatter radiation even though the collimator blades are at
their minimum open position. Therefore, the following
steps are recommended to be taken to minimize the effect
of this small amount of non-diagnostic radiation in
addition to the normal precautionary steps taken when
producing diagnostic radiation. Secondarily, these steps
will also help protect the Image Intensifier input phosphor
from being irradiated when power is not being applied to it
when performing an under table tube warm up.
1.
It is not recommended to have a patient on the table or
people in the room while performing under and over
table tube warm-ups. Perform under and over table tube
warm-ups before people enter the room or while the
patient is being prepared for the procedure. For over
table tube warm-ups, move the XT to a remote corner of
the room.
2.
Move the table bucky to a position so that it is over the
table tube. This position on the table top is directly
below the Image Intensifier and Intelligent Spot Film
Device.
3. Lay a lead apron on the table top in a position so that it is
over the table tube and collimator.
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PURPOSES
ONLY!
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