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COLLIMATOR TEST TOOL / BEAM ALIGNMENT TOOL
Verification of the proper alignment of the collimator light field with the
x-ray field is essential in radiographic quality control. This test tool readily
indicates a 1% or 2% misalignment at a 40" focal-film distance (FFD), but it may
be used at any FFD. Consists of a flat 8" x 10" plate with a 14 cm x 18 cm
pattern etched on its surface. Can also be used to check fluoroscopy alignment
and collimation.
Weight: 6-1/2 oz.
BEAM ALIGNMENT TEST TOOL (07-662)
Improper central ray alignment will distort a radiographic image. When used with
the 07-661 Collimator Test Tool, this device provides a simple means of
determining if the x-ray beam is perpendicular to the image receptor and
centered with respect to the light field. A steel ball is mounted in the center
of a disc at each end of the 15-cm-high clear plastic cylinder. When the balls
are positioned over one another and at a right angle to the film, their images
will appear as one if the central ray is truly perpendicular to the film. The
approximate degree of improper angulation can also be determined.
SPECIFICATIONS:
Dimensions: 5.9" high x 2.5" outside diam. (15 cm x 006.3 cm)
Weight: .54 lb (.24 kg)
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