Neutronics properties of JMTR LEU core

Conference · Tue Dec 31 23:00:00 EST 1991 · Transactions of the American Nuclear Society; (United States)

OSTI ID:6682022

Nagaoka, Yoshiharu; Saito, Minoru; Futamura, Yoshiaki ^[1]

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1. Japan Atomic Energy Research Institute, Ibaraki-ken (Japan)

The Japan materials testing reactor (JMTR) is a 50-MW light-water-moderated and -cooled tank-type reactor using engineering test reactor-type fuel. Core conversion from medium-enrichment uranium (MEU) aluminide fuel to low-enrichment uranium (LEU) silicide fuel of the JMTR is scheduled for 1993. The LEU silicide fuel element at 4.8 g U/cm[sup 3] with cadmium wires in the sideplates as burnable absorbers has been selected to achieve upgraded fuel cycle performance of extended cycle length and reduced control rod movement during operation. Shows a comparison of the LEU and the MEU fuel specifications is presented. A neutronic calculation method was developed for the LEU fuel because of adopting the strongly absorbing cadmium wires in the sideplates.

• OSTI ID: 6682022
• Report Number(s): CONF-921102--
• Journal Information: Transactions of the American Nuclear Society; (United States), Journal Name: Transactions of the American Nuclear Society; (United States) Vol. 66; ISSN 0003-018X; ISSN TANSAO
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
220600* -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
ALLOY NUCLEAR FUELS
ASIA
DEVELOPED COUNTRIES
ENERGY SOURCES
ENRICHED URANIUM REACTORS
ENRICHMENT
FUEL CYCLE
FUEL ELEMENTS
FUELS
IRRADIATION REACTORS
JAPAN
JMTR REACTOR
MATERIALS
MATERIALS TESTING REACTORS
NUCLEAR FUELS
PERFORMANCE
PHYSICS
REACTOR COMPONENTS
REACTOR CORES
REACTOR MATERIALS
REACTOR PHYSICS
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH PROGRAMS
RESEARCH REACTORS
SOLID FUELS
TANK TYPE REACTORS
TEST REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS