Page 705 - Radiation Safety
P. 705
CLASSIFICATION OF WORKING AREA
Objective of Area Classification:
To segregate work area according to potential hazards & restrict
significant Exposure.
Clean Area : Exposure <1 mSv/year
Supervised Area : Exposure 1 mSv/yr < X < 6 mSv/yr
Where dose likely to exceed 1 mSv/year
Controlled Area : Exposure > / 10 of annual dose limit
3
Where dose likely to exceed 3/10 of annual
dose limit (ADL) or 6 mSv/year
50
