Proposal of framework for decision making of additional monitoring of eye lens dose for radiation workers

This work presents a framework of decision-making for additional monitoring of eye lens dose for radiation workers in reflect to the reduction of the annual dose limit of the eye lens dose. For a quantitative scheme to systematically estimate (non-) homogeneity of exposure, the proposed “homogeneity index (HI)” is introduced. The HIs were estimated by Monte Carlo calculations and found not to exceed up to 10 for γ-ray exposure situations. Applying the HI as a criterion of condition branching to decision-making process of additional monitoring of eye lens dose, proposed decision-making process was shown to cover entirely radiation workers required additional monitoring in the benchmark.