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Basis and Implications of the CAP88 Age-Specific Dose Coefficients

Leggett, Richard; Scofield, Patricia; Eckerman, Keith*

doi: 10.1097/HP.0b013e3182904db1
Operational Topic

Recent versions of CAP88 incorporate age-specific dose coefficients based on biokinetic and dosimetric models applied in Federal Guidance Report 13, “Cancer Risk Coefficients for Environmental Exposure to Radionuclides.” With a few exceptions the models are those recommended in a series of reports by the International Commission on Radiological Protection (ICRP) on estimation of doses to the public from environmental radionuclides. This paper describes the basis for the ICRP’s age-specific biokinetic and dosimetric models and examines differences with age in dose coefficients derived from those models.

*Oak Ridge National Laboratory, M.S. 6113, P.O. Box 2008, Oak Ridge, TN 37831.

The authors declare no conflict of interest.

Pat Scofield is a Dose Assessment Specialist in the Environmental Protection and Waste Services Division at Oak Ridge National Laboratory. Her primary responsibilities involve conducting dose assessments associated with Oak Ridge Reservation activities. Pat holds masters degrees from the University of Michigan in Environmental Health (Radiological Health) and Industrial Health Sciences. Her email is

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