Patent ID: 8537962
Filing Date: 2013-09-17
Classification: G21C,Y02E

Abstract:
1. A gray rod for a rod control assembly of a pressurized water nuclear reactor, said gray rod comprising: an elongated tubular member having a first end, a second end, an outer diameter, and a length; and a neutron-absorber having an outer diameter and a length extending from a first end to a second end, disposed within said elongated tubular member over at least a portion of said length of said elongated tubular member, generally toward the first end thereof, said neutron-absorber comprising only one absorber material, said only one absorber material having a 2200 m/s neutron absorption microscopic capture cross-section of from 10 to 30 barns, wherein neutron absorption is substantially uniform over said length of said neutron-absorber.