Minnesota Administrative Rules

4731.6170 OPERATING AND EMERGENCY PROCEDURES.

Subpart 1.

Operating procedures.

A licensee must have and follow written operating procedures for:

A.

operation of the irradiator, including entering and leaving the radiation room;

B.

use of personnel dosimeters;

C.

surveying the shielding of panoramic irradiators;

D.

monitoring pool water for contamination while the water is in the pool and before release of pool water to unrestricted areas;

E.

leak testing of sources;

F.

inspection and maintenance checks required under part 4731.6210;

G.

loading, unloading, and repositioning sources, if the operations will be performed by the licensee; and

H.

inspection of movable shielding required under part 4731.6060, subpart 1, item H, if applicable.

Subp. 2.

Emergency procedures.

A licensee must have and follow emergency or abnormal event procedures, appropriate for the irradiator type, for:

A.

sources stuck in the unshielded position;

B.

personnel overexposures;

C.

a radiation alarm from the product exit portal monitor or pool monitor;

D.

detection of leaking sources, pool contamination, or an alarm caused by contamination of pool water;

E.

a low or high water level indicator, an abnormal water loss, or leakage from the source storage pool;

F.

a prolonged loss of electrical power;

G.

a fire alarm or explosion in the radiation room;

H.

an alarm indicating unauthorized entry into the radiation room, area around the pool, or another alarmed area;

I.

natural phenomena, including an earthquake, a tornado, flooding, or other phenomena as appropriate for the geographical location of the facility; and

J.

the jamming of automatic conveyor systems.

Subp. 3.

Revision of procedures.

A licensee may revise operating and emergency procedures without commissioner approval only if:

A.

the revisions do not reduce the safety of the facility;

B.

the revisions are consistent with the outline or summary of procedures submitted with the license application;

C.

the revisions have been reviewed and approved by the radiation safety officer; and

D.

the users or operators have been instructed and tested on the revised procedures before the procedures are put into use.

Statutory Authority:

MS s 144.1202; 144.1203

History:

29 SR 755

Published Electronically:

March 12, 2009