Preparation of a primary target for the production of fission pr

Details Preparation of a primary target for the production of fission pr Preparation of a primary target for the production of fission pr

1973-11-06

1976-02-24

Sebastian, Leland A.

Chemistry: electrical and wave energy

Processes and products

29458, 176 14, 176 16, 423 2, 424 1, B01k 300, C01g 4300

Patent

active

039403181

ABSTRACT:
A primary target for the production of fission products in a nuclear reactor, such as uranium or plutonium fission products, is comprised of an enclosed, cylindrical vessel, preferably comprised of stainless steel, having a thin, continuous, uniform layer of fissionable material, integrally bonded to its inner walls and a port permitting access to the interior of the vessel. A process is also provided for depositing uranium material on to the inner walls of the vessel. Upon irradiation of the target with neutrons from a nuclear reactor, radioactive fission products, such as molybdenum-99, are formed, and thereafter separated from the target by the introduction of an acidic solution through the port to dissolve the irradiated inner layer. The irradiation and dissolution are thus effected in the same vessel without the necessity of transferring the fissionable material and fission products to a separate chemical reactor. Subsequently, the desired isotopes are extracted and purified. Molybdenum-99 decays to technetium-99m which is a valuable medical diagnostic radioisotope.

REFERENCES:
patent: 3243352 (1966-03-01), Boudouresques
patent: 3318695 (1967-05-01), Goslee et al.
patent: 3375203 (1968-03-01), Hurley et al.
patent: 3691087 (1972-09-01), Hurley et al.

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