Minnesota Administrative Rules

4731.4476 RADIATION SURVEYS.

Subpart 1.

Surveys required.

In addition to the survey requirement under part 4731.2200, a licensee must make surveys to ensure that the maximum radiation levels and average radiation levels from the surface of the main source safe with the source in the shielded position do not exceed the levels stated in the sealed source and device registry.

Subp. 2.

When required.

A licensee must make the survey required under subpart 1 upon installation of a new source and following repairs to the source shielding, the source driving unit, or other electronic or mechanical component that could:

A.

expose the source;

B.

reduce the shielding around the source; or

C.

compromise the radiation safety of the unit or the source.

Subp. 3.

Record retention.

A licensee must retain a record of the radiation surveys required under subpart 1 according to part 4731.4523.

Statutory Authority:

MS s 144.1202; 144.1203

History:

29 SR 755

Published Electronically:

March 12, 2009