Induced nuclear reactions: processes – systems – and elements – Fuel component structure – Encased with nonfuel component
Patent
1990-01-16
1991-12-24
Behrend, Harvey E.
Induced nuclear reactions: processes, systems, and elements
Fuel component structure
Encased with nonfuel component
376339, 376349, G21C 300
Patent
active
050750755
ABSTRACT:
A nuclear reactor core has a first group of fuel rods containing fissionable material and no burnable absorber, and a second group of fuel rods containing fissionable material and two burnable absorber materials. The groups of fuel rods are arranged in the core for controlling power peaking and moderator temperature coefficient. The number of fuel rods in the first group are greater than the number in the second group. The two burnable absorber materials can be provided as separate coatings or a mixture. One burnable absorber material is an erbium-bearing material such as erbium oxide and the other is a boron-bearing material such as zirconium diboride. Alternatively, the erbium-bearing material can be interspersed or mixed with the fissionable material.
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Behrend Harvey E.
Chelliah Meena
Westinghouse Electric Corp.
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