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Neutronics properties of JMTR LEU core

Conference · · Transactions of the American Nuclear Society; (United States)
OSTI ID:6682022
; ;  [1]
  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--
Conference Information:
Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 66
Country of Publication:
United States
Language:
English