II-230 Equipment and Materials:
II-235 Calibration Block
ìÖmay be an actual test object or may be fabricated to simulate the test object with known discontinuitiesî
II-236 Calibrated Line Pair Test Pattern and Step Wedge
ìThe line pair test pattern shall be used without an additional absorber to evaluate system resolution. The step wedge shall be used to evaluate system contrast sensitivity.î
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