AN ABSORPTION BAR, AN APPLIANCE TO INSERT A GROUP OF ABSORPTION BARS IN AN EXHAUSTED FUEL ASSEMBLY, A SHIELDED CONTAINER AND A TRANSPORTATION PROCEDURE AND STORAGE OF SOLD OUT FUEL SETS.

摘要

An absorption bar (11), which is composed of a composite material of aluminum or aluminum alloy formed by adding, to aluminum or aluminum alloy powder, boron powder or boron compound having a neutron absorption effect, being said absorption bar (11) configured so that it can be inserted either into a control bar guide pipe (5), or a measurement pipe (6) of an exhausted fuel assembly.