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Question 445: In this example, it has been determined that
an individual is not likely to exceed 5 rems shallow dose
equivalent from any sources with the possible exception of
dose from hot particles. There is a potential that
exposure to an individual from a hot particle may occur and
that the dose to the individual from a hot particle, should
it occur, may potentially exceed 5 rems shallow dose
equivalent. In this circumstance, may the potential dose
resulting from a potential exposure to a hot particle be
disregarded for the purpose of the evaluation on the basis
that the dose is not likely to exceed 10% of the applicable
limit? Note that the scope of this question is limited to
the requirements for individual monitoring (§20.1502) and
is not intended to address the general requirements for
radiological surveys (§20.1501).
Answer: Yes. The fact that an individual has the
potential to receive a dose does not mean that the
individual is likely to receive the dose. [Note: It should
also be recognized that individual monitoring devices
(personal dosimeters) are not appropriate for measuring
doses from hot particles on or near the skin.] (Reference:
10 CFR 20.1502).