Absorbing rod, an apparatus for inserting the absorbing rod, a cask, and a method of storing spent fuel assemblies
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsKiichiro Sakashita, Tomohiro Itoh, Katsunari Ohsono, Suguru Hode
Life of this patent
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Abstract
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.
Claims2
An absorbing rod configured to be insertable into one of a control rod guide pipe or a measuring pipe of spent fuel assemblies, said absorbing rod comprising a solid structure comprising one of an aluminum composite material and an aluminum alloy formed by adding one of a powder of boron or a boron compound having a neutron absorbing performance, to a powder of aluminum or of an aluminum alloy having an average diameter of 50-120 μm.
Dependencies are inferred from the claim text.