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
2004 International RERTR Meeting

Core Configuration of the Syrian reduced enrichment fuel MNSR

M. Albarhoum
Department of Nuclear Engineering, Atomic Energy Comisión P. O. Box, 6091, Damascus- Syria


The possibility of substituting the actual HEU by a LEU or MEU in the Syrian MNSR is investigated through a pre-constructed 3-D detailed model of the reactor. Core configuration does not change if a reduced enrichment fuel (20% u-235, with the same percentages of impurity and eliminating aluminum) is used. The required density for the reactor to be critical in this case would be 7.29 g/cm2. If a specific fuel is used (20 w/o U235, 72 w/o U ), the reactor may not go critical at all. When a MEU fuel is used (45 w/o U235, 40 w/o U ), the reactor will restore the same actual initial excess reactivity if 2 standard fuel rods are added to each fuel circle.

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Dr. Jordi Roglans-Ribas
Technical Director, RERTR Department
Nuclear Engineering Division – 362
Argonne National Laboratory
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Last modified on July 29, 2008 11:33 +0200