Each fuel rod is identified during its travel and positioned according to {TAIL ~ an identifying code} carried on its lower end plug which designates the fuel enrichment and {HEAD ~ additive level} of the rod 
Each fuel rod is identified during its travel and positioned according to { TAIL ~ an identifying code } carried on its lower end plug which designates the fuel enrichment and { HEAD ~ additive level } of the rod
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH