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As defined in Title 10, Section 20.1003, of the Code of Federal Regulations (10 CFR 20.1003), this is the sum of the individual doses received in a given period by a specified population from exposure to a specified source of radiation. For related information, see Doses in Our Daily Lives, Sources of Radiation, and Measuring Radiation.
Page Last Reviewed/Updated Monday, September 14, 2026
