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U.S. Department of Health and Human Services

Radiation-Emitting Products

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When measuring light field misalignment, must the misalignment at each edge be within 2% of the SID or is it the total misalignment (both edges) in either the length or width dimension that must be within 2% of the SID?

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The total misalignment (both edges) in either the length or width dimension must be within 2% of the SID.

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