Reactivity control rod for core

Induced nuclear reactions: processes – systems – and elements – With control of reactor – By movement of control element or by release of neutron...

Reexamination Certificate

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Details

C376S221000, C376S339000, C376S219000, C376S327000, C376S419000, C376S447000

Reexamination Certificate

active

07139352

ABSTRACT:
A reactivity control rod adapted to be used in a reactor core of a fast reactor and disposed at a substantially central portion of the reactor core for controlling a reactivity therein. The reactivity control rod includes a wrapper tube surrounded by a plurality of fuel rods in a reactor core, and a plurality of neutron absorber rods arranged in the wrapper tube. At least one of the plurality of neutron absorber rods includes a cladding tube and a mixture filled in the cladding tube. The mixture is composed of a neutron absorber that absorbs a neutron and a neutron moderator that moderates the neutron.

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Merriam-Webster's Collegiate Dictionary, 10thEdition, 1993, p. 746.

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