Patent ID: 6118838
Filing Date: 2000-09-12
Classification: G21C,Y02E

Abstract:
A nuclear fuel rod assembly storage rack comprising:(a) a rigid structure delimiting vacant spaces having a substantially square cross-section; and(b) a plurality of neutron-absorbing units having substantially square cross-sections, received in at least some of said vacant spaces;(c) each neutron-absorbing unit comprising a plurality of flat plates of neutron-absorbing material surround by at least two support means adapted to keep said plates together;(d) in which the support means are rigid frames surrounding the flat plates on at least two different levels;(e) in which the rigid frames are locked on said flat plates, lengthwise to said neutron-absorbing units, by notches formed in the flat plates; and(f) in which each rigid frame comprises at least two basic sections connected together by assembling means and having protrusions which fit into said notches.