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U.S. Department of Health and Human Services

Radiation-Emitting Products

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Does the condition of the focal spot have to be measured at all possible magnification values?

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The facility is required to evaluate the focal spot condition in the magnification mode only if magnification is clinically used and then at the magnification factor as close to 1.5 as can be achieved with the system.

Back to Focal Spot Condition/System Resolution – Annual Quality Control Test