Induced nuclear reactions: processes – systems – and elements – Nuclear transmutation – By neutron bombardment
Patent
1998-02-04
1999-01-26
Wasil, Daniel D.
Induced nuclear reactions: processes, systems, and elements
Nuclear transmutation
By neutron bombardment
G21C 100
Patent
active
058645934
ABSTRACT:
Seed-blanket type nuclear reactor cores (10,100) are employed to burn thorium fuel with conventional reactor fuels, including nonproliferative enriched uranium, and weapons or reactor grade plutonium. In a first embodiment, the core (10) is completely nonproliferative in that neither the reactor fuel, nor the generated waste material, can be used to manufacture nuclear weapons. In a second embodiment of the invention, the core (100) is employed to burn large amounts of weapons grade plutonium with the thorium, and provides a convenient mechanism by which stockpiled weapons grade plutonium can be destroyed and converted into electrical energy. The cores of both embodiments are comprised of a plurality of seed-blanket units (12, 102) which have centrally located seed regions (18,104) that are surrounded by annular blanket regions (20,106). The seed regions contain the uranium or plutonium fuel rods (22,110), while the blanket regions contain thorium fuel rods (26,118). The moderator/fuel volume ratios and relative sizes of the seed and blanket regions are optimized so that neither embodiment generates waste materials that can be employed for manufacturing nuclear weapons. A novel refueling scheme is also employed with the first embodiment to maximize seed fuel utilization, and further insure that the spent fuel cannot be employed for manufacturing nuclear weapons.
REFERENCES:
patent: T947011 (1976-06-01), Radkowsky
patent: 2898281 (1959-08-01), Untermyer et al.
patent: 3151031 (1964-09-01), Lindstrom
patent: 3154471 (1964-10-01), Radkowsky
patent: 3219535 (1965-11-01), Robbins
patent: 3309277 (1967-03-01), Jaye et al.
patent: 3335060 (1967-08-01), Diener
patent: 3671392 (1972-06-01), Beaudoin et al.
patent: 3859165 (1975-01-01), Radkowsky et al.
patent: 3957575 (1976-05-01), Fauth, Jr. et al.
patent: 3960655 (1976-06-01), Bohanan et al.
patent: 3998692 (1976-12-01), Bohanan et al.
patent: 4169760 (1979-10-01), Bevilacqua
patent: 4273613 (1981-06-01), Radkowsky
patent: 4609522 (1986-09-01), Davidson et al.
patent: 4678619 (1987-07-01), Radkowsky
patent: 4820478 (1989-04-01), Freeman
patent: 4879086 (1989-11-01), Luce et al.
patent: 4941158 (1990-07-01), Bingham et al.
patent: 4968476 (1990-11-01), Radkowsky
Bilateral Seminars of the International Bereau Kernforschungsanlagejulich GmbH, "Program of Research and Development on the Thorium Utilization of PWRs", Final Report, 1979-1988.
International Atomic Energy Agency, "Advanced Fuel Technology and Performance," IAEA-TECDOC-352, Vienna, 1985.
International Atomic Energy Agency, "Thorium-Based Nuclear Fuel: Current Status and Perspectives," IAEA-TECDOC-412, Vienna, 1987.
Radkowsky, A. et al., "The Optimaztion of the Once-Through Uranium Cycle for Pressurized Light Water Reactor," Nuclear Science and Engineering, pp. 265-274, 1980.
Radkowsky Thorium Power Corporation
Wasil Daniel D.
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