dose area product
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dose area product (DAP)
the product of the entrance skin dose and the cross-sectional area of the x-ray beam.
dose area product
,DAP
In nuclear medicine and radiology, the dose of radiation delivered to a patient or area of tissue multiplied by the area of skin exposed. The DAP gives an estimate of the likelihood of skin damage from a specific dose of radiation. It is measured in gray square centimeters.