Induced nuclear reactions: processes – systems – and elements – Control component for a fission reactor
Patent
1997-08-04
2000-03-21
Jordan, Charles T.
Induced nuclear reactions: processes, systems, and elements
Control component for a fission reactor
376333, G21C 700, G21C 7113
Patent
active
060410914
ABSTRACT:
A control rod for a nuclear reactor is composed of a center structural member, a plurality of wings each composed of a sheath member of long plate structure having a U-shaped cross section and secured to the center structural member, a front end structural member secured to a front end side of the wing in a wing inserting direction in a reactor core, a terminal end structural member secured to a terminal end side of the wing, a plurality of integral type neutron absorbing elements each having a plate structure accommodated in each of the sheaths in a row in a longitudinal direction thereof and each being formed in plate shape by integrating one or more neutron absorbing plates, and a plurality of load supporting members for supporting weights of the integral type neutron absorbing elements. A length in the sheath longitudinal direction of at least one set of the integral type neutron absorbing elements accommodated in the wing is reduced, and the reduced integral type neutron absorbing elements are supported to the U-shaped sheath by the load supporting members to thereby reduce a local load applied to the U-shaped sheath.
REFERENCES:
patent: 4876060 (1989-10-01), Yoshioka et al.
patent: 5034185 (1991-07-01), Ueda et al.
patent: 5276718 (1994-01-01), Ueda
M. Ueda, et al. "Critical Experiment on a Flux-Trap-Type Hafnium Control Blade for BWRs", Transactions of American Nuclear Society, (Winter Meeting, 1987), Los Angeles, vol. 55, (1987), pp. 616-617.
Morishita Hideki
Shiga Shigenori
Tajima Satoko
Ueda Makoto
Jordan Charles T.
Kabushiki Kaisha Toshiba
Keith Jack W.
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