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Final qualification testing results for TRIGA low-enriched uranium fuel

Conference · · Trans. Am. Nucl. Soc.; (United States)
OSTI ID:6981557
; ;

Following the adoption of policies by the US government and other fuel supplier nations to limit, with few exceptions, export of fuels to those enriched to < 20% in /sup 235/U, GA Technologies undertook, starting in 1976, a rigorous program to develop uranium zirconium-hydride fuels with high uranium concentrations up to 3.7 g U/cm/sup 3/, while limiting the enrichment to < 20% in /sup 235/U. By increasing the uranium concentration from 8.5 to 45 wt% and by including erbium as a burnable poison, the long reactivity lifetime of the high-enriched uranium cores has been preserved. The achieved purpose of these low-enriched uranium (LEU) fuels was also to preserve all the unique safety features of the TRIGA fuel system - prompt negative temperature coefficient of reactivity, high fission product retentivity, chemical stability when quenched from high temperatures in water, and dimensional stability over a broad range of operating temperatures.

OSTI ID:
6981557
Report Number(s):
CONF-8711195-
Journal Information:
Trans. Am. Nucl. Soc.; (United States), Journal Name: Trans. Am. Nucl. Soc.; (United States) Vol. 55; ISSN TANSA
Country of Publication:
United States
Language:
English

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Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
220600* -- Nuclear Reactor Technology-- Research
Test &amp; Experimental Reactors
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIDES
ALPHA DECAY RADIOISOTOPES
ANL
BURNABLE POISONS
BURNUP
ELEMENTS
ENRICHED URANIUM
ENRICHED URANIUM REACTORS
EVEN-ODD NUCLEI
FISSION PRODUCT RELEASE
HEAVY NUCLEI
HOMOGENEOUS REACTORS
HYDRIDE MODERATED REACTORS
ISOMERIC TRANSITION ISOTOPES
ISOTOPE ENRICHED MATERIALS
ISOTOPES
KINETICS
MATERIALS
METALLOGRAPHY
METALS
MINUTES LIVING RADIOISOTOPES
MODERATELY ENRICHED URANIUM
NATIONAL ORGANIZATIONS
NEUTRON ABSORBERS
NUCLEAR POISONS
NUCLEI
ORR REACTOR
POST-IRRADIATION EXAMINATION
RADIOISOTOPES
REACTIVITY
REACTOR COMPONENTS
REACTOR CORES
REACTOR KINETICS
REACTOR MATERIALS
REACTOR SAFETY
REACTORS
RESEARCH AND TEST REACTORS
SAFETY
SOLID HOMOGENEOUS REACTORS
TANK TYPE REACTORS
TRIGA TYPE REACTORS
URANIUM
URANIUM 235
URANIUM ISOTOPES
US AEC
US DOE
US ERDA
US NRC
US ORGANIZATIONS
WATER COOLED REACTORS
WATER MODERATED REACTORS
YEARS LIVING RADIOISOTOPES