Transuranium element transmuting reactor core

Details Transuranium element transmuting reactor core Transuranium element transmuting reactor core

1991-08-02

1994-03-29

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Nuclear transmutation

By neutron bombardment

376189, 376435, G21G 102

Patent

active

052992411

ABSTRACT:
In a transuranium elements transmuting reactor core in which a reactor is charged with a plurality of fuel assemblies at a core and an amount of a transuranium element to be added is controlled so as to prevent a fuel element contained in the fuel assemblies from melting, the amount of the transuranium elements to be added to the fuel element is controlled so as to keep an excess reactivity of the reactor substantially zero through an operation of the reactor. A charging density of minor actinides is set to lessen outwards of a core central portion in a core area where a plutonium content is made even. The charging density of minor actinides is set high accordingly in an area where a plutonium is enriched high at the core of a plutonium enriched area where a plutonium content varies. A transuranium elements transmuting fuel pin is formed by charging a transuranium fuel material in a fuel clad and the transuranium fuel material includes at least one of fuel materials consisting of an enriched uranium and an uranium-plutonium mixed fuel and a fertile material consisting of a natural uranium and a depleted uranium contain transuranium elements. In a transuranium elements transmuting assembly including a wrapper tube and a plurality of fuel pins enclosed in the wrapper tube, each of said fuel pin including a fuel clad. At least one part of the fuel pins are formed by charging a transuranium fuel material in the fuel clad with a transuranium fuel material inside.

REFERENCES:
patent: 4721596 (1988-01-01), Marriott et al.
Murphy et al, "Power Production and Actinide Elimination by Fast Reactor Recycle", Nuclear Tech. Oct. 1979, pp. 299-306.
McKay, "Destroying Actinides in Nuclear Reactors", NEI Jan. 1978, pp. 40-43.
International Atomic Energy Agency Technical Report Series No. 214, (1982), "Evaluation of Actinide Partitioning and Trans . . . ".

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