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Absorbing rod, an apparatus for inserting the absorbing rod, a cask, and a method of storing spent fuel assemblies

Image Number 11 for United States Patent #6891914.

The absorbing rods have a nearly the same shape as the shape of columnar control rods for PWR used in reactivity control of core in a reactor. The absorbing rods can shield neutrons, and are inserted in control rod guide pipes and measuring pipes in fuel assemblies.

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