Frame-held neutron-absorbing fuel rod assembly storage rack

Induced nuclear reactions: processes – systems – and elements – Handling of fission reactor component structure within... – Storage container systems for new and/or irradiated core...

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376287, 2505061, 2505071, G21C 1906, G21C 1907, G21F 5008, G21F 5012

Patent

active

061188387

ABSTRACT:
A nuclear fuel rod assembly storage rack comprises a rigid structure delimiting vacant spaces of square, cross-section and neutron-absorbing units also having a square cross-section prearranged before introduction into all or part of the vacant spaces between the shroud tubes. Each neutron-absorbing unit is made up of four flat plates of neutron-absorbing material, surrounded by at least two support grids. The support grids may comprise two units assembled together, for example by welding.

REFERENCES:
patent: Re31661 (1984-09-01), Mollon
patent: 4567015 (1986-01-01), Bosshard
patent: 4746487 (1988-05-01), Wachter
patent: 4781883 (1988-11-01), Daugherty et al.
patent: 5629964 (1997-05-01), Roberts
AAR Brooks & Perkins, Nucl. Eng. Int., p. 55., Dec. 1988.

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