Development and irradiation performance of LHTGR fuel

Abstract
The results of extensive high-temperature irradiation testing of coated particle fuels at General Atomic have demonstrated that fuel particles can be designed and manufactured to withstand maximum HTGR burnup, fluence, and temperature conditions. A wide range of coated particle microstructure and geometries has been successful in these experiments, indicating that considerable latitude is available in both fissile and fertile particle designs. Tests on the irradiation behavior of fuel rods have demonstrated their good dimensional stability and have shown that with proper design there are no detrimental rod matrix-particle coating interactions.

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