Summary of dose limits - DOE-HDBK-1141-2001

Radiological Assessor Training

DOE-HDBK-1141-2001

Instructor's Guide

1. Summary of dose limits

Show OT 2.8 and OT 2.9.

10 CFR Part 835 employs the rem unit for

several different physical quantities. For

information about these quantities refer

participants to page 1 of handouts, "Dosimetric

Quantities in 10 CFR Part 835."

Exposed Individual

Annual Limit

General Employee: Whole Body (internal and external) (TEDE)

5.0 rem

General Employee: Lens of Eye (DE)

15.0 rem

General Employee: Extremity (below elbow and knees) and skin (SDE)

50.0 rem

General Employee: Any Organ or Tissue (other than lens of eye) (DDE + CDE)

50.0 rem

Declared Pregnant Worker: Embryo/Fetus (gestation period) (DE)

0.5 rem

Occupationally Exposed Minors (under age 18): ((TEDE)

0.1 rem *

Members of the Public in Controlled Areas: (TEDE)

0.1 rem

And 10% of other general employee limits.

2. Planned special exposures (PSEs)

It is acknowledged that unusual conditions

can arise in which higher-than-normal doses

can be justified. In these well-planned, well-

controlled, and highly infrequent and unusual

conditions operating management would be

permitted to allow specified individual doses

exceeding the occupational limit, such as 5

rem per year.

Module 2 - 5