Description:
ABSTRACT -- These revised Recommendations for a System of Radiological
Protection formally replace the Commission's previous, 1990,
Recommendations, and update, consolidate, and develop the additional
guidance on the control of exposure from radiation sources issued since
1990. Thus, the present Recommendations update the radiation and tissue
weighting factors in the quantities equivalent and effective dose and
update the radiation detriment, based on the latest available scientific
information of the biology and physics of radiation exposure. They
maintain the Commission's three fundamental principles of radiological
protection, namely justification, optimisation and the application of
dose limits, clarifying how they apply to radiation sources delivering
exposure and to individuals receiving exposure. The Recommendations
evolve from the previous process-based protection approach using
practices and interventions by moving to an approach based on the
exposure situation. They recognise planned, emergency, and existing
exposure situations, and apply the fundamental principles of
justification and optimisation of protection to all of these situations.
They maintain the Commission's current individual dose limits for
effective dose and equivalent dose from all regulated sources in planned
exposure situations. They re-inforce the principle of optimisation of
protection, which should be applicable in a similar way to all exposure
situations, subject to restrictions on individual doses and risks: dose
and risk constraints for planned exposure situations, and reference
levels for emergency and existing exposure situations. The
Recommendations also include an approach for developing a framework to
demonstrate radiological protection of the environment.
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