Reducing Radiation Doeses from 129I Disposal by Isotopic Dilution

Abstract

Iodine-129, arising from the disposal of used fuel, is predicted to be one of the principal contributors to the radiation dose to man. As a strategy to reduce the potential doses from 129I, addition of stable iodine to the infilling material of the waste containers has been proposed. The expected degree of mixing of the stable and radioactive iodine that would occur in the disposal vault is examined and the implications on the potential doses from 129I are discussed.