Argonne National Laboratory
Reduced Enrichment for Research and Test Reactors
Nuclear Science and Engineering Division at Argonne
U.S. Department of Energy

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Abstracts and Available Papers Presented at the
1999 International RERTR Meeting


G. F. Vandegrift, R. A. Leonard, S. Aase, J. Sedlet, Y. Koma,
C. Conner, C. R. Clark, and M. K. Meyer

Argonne National Laboratory
Argonne, Illinois, and Idaho Falls, Idaho, U.S.A.


Argonne National Laboratory is cooperating with the National Atomic Energy Commission of the Argentine Republic (CNEA) to convert their 99Mo production process, which uses high enriched uranium (HEU), to low-enriched uranium (LEU).  The program is multifaceted; however, discussed in this paper are (1) results of laboratory experiments to develop means for substituting LEU metal-foil targets into the current process and (2) preparation of uranium-alloy or uranium-metal/aluminum-dispersion targets.  Although 99Mo production is a multi-step process, the first two steps (target dissolution and primary molybdenum recovery) are by far the most important in the conversion.  Commonly, once molybdenum is separated from the bulk of the uranium, the remainder of the process need not be modified.  Our results show that, up to this point in our study, conversion of the CNEA process to LEU appears viable.

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George F. Vandegrift
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Argonne National Laboratory
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Last modified on July 29, 2008 11:33 +0200