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Reduced Enrichment for Research and Test Reactors
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Abstracts and Available Papers Presented at the
2002 International RERTR Meeting

from Low Enriched Uranium TARGETS

Pablo R. Cristini, Héctor J. Cols, Ricardo Bavaro, Marcelo Bronca, Roberto Centurión, Daniel Cestau
Comisión Nacional de Energía Atómica,  Centro Atómico Ezeiza
República Argentina


Fission molybdenum-99 is being produced in Argentina, at the Ezeiza Atomic Centre, since 1985. The procedure involved the irradiation of HEU targets with an Uranium-Aluminum alloy “meat” cladded with aluminum.  Chemical processing of the targets is based on the method developed by Dr. Sameh Ali at KfK in Germany.

Some years ago the Atomic Energy National Commission of Argentina (CNEA) started the development of new LEU targets for its Mo-99 production, in order to replace present HEU miniplates. In a previous paper several tests were described, employing uranium silicide and uranium aluminide as target materials. Based on those tests, the method for Mo-99 production from HEU targets was adapted to LEU aluminide targets.

A description of the method, yielding results and quality control data of the final product are shown. At present, this is the method employed in Argentina to obtain high quality fission Mo-99 from LEU targets to be used in nuclear medicine.

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Mr. Héctor J. Cols

Production Responsible
Avda. del Libertador 8250
C1429BNO Buenos Aires, Argentina
Phone: (54 11) 4379 8447
Fax: (54 11) 4379 8441
E-mail: [email protected]

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Last modified on July 29, 2008 11:32 +0200