16.0 Restricted Area Designation Procedure

Restricted areas will be established for purposes of controlling movement of radiation sources and personnel. These areas will function to protect personnel and property from accidental contamination and unnecessary radiation exposure. Each individual working or visiting such areas must carefully observe signs and directions indicating the action to be taken in a specified area.

16.1 Unrestricted Area

No contamination or significant radiation levels exist. Personnel monitoring is not required.

16.2 Restricted Area

Personnel monitoring may be required. If required, protective clothing requirements shall be clearly posted. Caution is to be exercised. Some examples are:

16.2.1 Radiation Area

This area is defined in NAC 459.070 as follows: "Radiation Area means any area accessible to any person in which there exists radiation at a level which could result in a person receiving a dose equivalent in excess of 0.005 rem in an hour at 30 centimeters from the source of radiation or from any surface that the radiation penetrates."

16.2.2 High Radiation Area

This area is defined in NAC 459.042 as follows: "High Radiation Area means any area accessible to persons in which radiation exists at such levels that a person could receive a dose equivalent in excess of 0.1 rem in 1 hour at 30 cm from the source of radiation or from any surface that radiation penetrates."

16.3 Contaminated Area

Controlled access only for purpose of contamination control and decontamination activities. Persons must not enter such an area without a specific reason to be there, authorization and proper personal protection.

16.4 Authorized Personnel Only

An area in which disruption or interference with the safe operation of a radiation source could occur by unauthorized entry.

NOTE: Persons must not enter into the above described areas unless authorized and equipped. If an individual does enter a Controlled Area accidentally, he/she must exit the area and notify EH&S, taking care not to wander far from the area so as to prevent possible spread of contamination.