Abstracts and Available Papers Presented at the
1999 International RERTR Meeting

STATUS OF REDUCED ENRICHMENT PROGRAM FOR RESEARCH REACTORS IN JAPAN

Keisuke Kaieda, Osamu Baba, and Yoshiharu Nagaoka
Japan Atomic Energy Research Institute
Uchisaiwai-cho, Chiyoda-ku, Tokyo 100-0011, Japan
Phone: +81-3-3592-2198
Fax: +81-3-3592-2199

Keiji Kanda and Yoshihiro Nakagome
Research Reactor Institute, Kyoto University
Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan
Phone: +81-724-53-2145
Fax: +81-724-51-2604

ABSTRACT

The reduced enrichment programs for the JRR-3M, JRR-4 and JMTR of Japan Atomic Energy Research Institute (JAERI) have been completed.  The KUR of Kyoto University Research Reactor Institute (KURRI) has been partially completed and is still in progress under the Joint Study Program with Argonne National Laboratory (ANL).

The JRR-3M commenced using LEU silicide fuel elements instead of LEU aluminide fuel elements in September, 1999.

The Japanese Government approved a cancellation of the KUHFR Project in February 1991, and April 1994 the U.S. Government gave an approval to utilize HEU fuel in the KUR instead of the KUHFR.  Therefore, the KUR will be operated with HEU fuel until March 2004, then the full core conversion with LEU silicide will be done. The first shipment of spent fuels since 1974 was done in August, 1999.

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