The absorber rod comprises {HEAD ~ cladding} of stainless steel closed by plugs and containing {TAIL ~ a column} of absorber pellets e.g. of boron carbide 
containing
The absorber rod comprises { HEAD ~ cladding } of stainless steel closed by plugs and containing { TAIL ~ a column } of absorber pellets e.g. of boron carbide
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH