Page 621 - Radiation Safety

TYPES OF EMERGENCY

It can be classified as:

 Level 1 - consequences are limited to a single room / plant / building. Examples are:

 failure of shutter to close;

 increase in radiation leakage from the device; and

 leakage of the radiation source.

 Level 2 - consequences have spread out but limited to the perimeter of the facility or

premise and it may include:

 consequences caused by loss of radiation source;

 transport accident; and
 fire involving nuclear gauges.

 Level 3 and Level 4 - are not likely to happen with the use of nuclear gauging and X-

ray analyzer.

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