(1)
Movement in the laboratory is from "cold" to "hot"
areas passing through intermediate zones
(2)
Helps prevent spread of contamination
(3)
Excludes all but those persons most directly concerned
from dangerous areas
(4)
Air flow in building design from positive pressure
halls to offices to still lower pressure laboratories
Concentrate radiation zones
(1)
Control radiation by total enclosure of the radioactive material
(a)
Dry boxes
(ob)
Hot cells
Total control assures personnel protection and minimizing
contamination