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FOCAL SPOT TEST TOOL
Provides a simple "pass-fail" test to determine if an x-ray tube focal spot has
been damaged. Consists of a 6" high stand with an eleven-group test pattern.
Each group has six bars, three of which are positioned at right angles to the
adjacent set. The groups diminish in size from 0.6 line pairs/mm (1.75 mm) to
3.35 line pairs/mm (0.3 mm). By observing the radiograph and using the chart
supplied, showing resolution vs. focal spot size, the nominal focal spot
dimension (in mm) can be determined.
SPECIFICATIONS:
Dimensions (Stand): 2-1/2" diam. x 6" high
Weight: .25 lb
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