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Development of Dose-Based
Release Limits for Unrestricted Release of a Radio-Chemistry
Laboratory
Operational Radiation Safety
Steven Rima
ABSTRACT
Current Regulations for unrestricted release
are based on annual dose equivaltent. Unless
one desires to use very conservative "screening
levels," dose modeling must be accomplished
to derive an areal or volumetric limit or concentration
value for release purposes. Such derived limits
are referred to as "Derived Concentration
Guideline Levels" (DCGL). This paper describes
the process employed to derive DCGLs for building
surfaces contaminated with uranium and its decay
progerny based on annual dose equivalent and
the innovative means employed during the derivation.
Health Phys. 84(Supplement 1):S37-S40;2003)
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