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
2000 International RERTR Meeting

The Rhode Island Nuclear Science Center Conversion from HEU to LEU Fuel

T. Tehan, Ph.D.
Director, Rhode Island Nuclear Science Center
Narragansett, Rhode Island


The 2 MW Rhode Island Nuclear Science Center (RINSC) open pool reactor was converted from 93% UAL-High Enriched Uranium (HEU) fuel to 20% enrichment U3Si2 -Al Low Enriched Uranium (LEU) fuel. The conversion included redesign of the core to a more compact size and the addition of beryllium reflectors and a beryllium flux trap. A significant increase in thermal flux level was achieved due to greater neutron leakage in the new compact core configuration. Following the conversion, a second cooling loop and an emergency core cooling system were installed to permit operation at 5 MW. After re licensing at 2 MW, a power upgrade request will be submitted to the NRC.

PDF version available
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Mr. Terrence N. Tehan
Rhode Island Atomic Energy Commission
16 Reactor Road
Narragansett, RI 02882-1165 USA
Phone: (401) 789-9391
Fax: (401) 782-4201
E-mail: [email protected]

2016 RERTR Meeting

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2015 RERTR Meeting

The 2015 International RERTR Meeting (RERTR-2015) took place in Seoul, Korea on Oct. 11-14, 2015.
For more information visit RERTR-2015.


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