Sequences documenting the fish irradiation process at Lunenburg, using Atomic Energy Canada Limited (AECL) mobile cobalt 60 irradiator; shots of cod filets packed in wooden boxes moving through irradiator. Several shots of cod being unloaded from boat and dropped onto conveyor leading into fish plant, shots of men inside plant processing fish, of woman packing filets in wooden boxes. CS of control panel of irradiator. Last shots of semitrailer housing irradiator.