A summary of activities around concept development, design, manufacturing, and early irradiation testing of a novel coated fuel particle, uranium nitride tristructural-isotropic fuel is provided. This fuel particle offers significantly higher uranium density over historic manifestations of coated fuel particles and may be more optimal for a range of advanced reactor applications. After reviewing the design process, steps involving production of this fuel form are discussed. Low burnup irradiation data on this fuel particle are now available, indicating that performance metrics have been met to date based on the original design expectations.

中文翻译：

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氮化铀三向同性燃料颗粒

提供了关于概念开发，设计，制造和新型涂层燃料颗粒氮化铀三结构各向同性燃料的早期辐射测试的活动摘要。与涂覆燃料颗粒的历史表现相比，这种燃料颗粒提供了更高的铀密度，并且对于一系列先进的反应堆应用而言可能更为理想。在审查了设计过程之后，讨论了涉及生产这种燃料形式的步骤。现在可获得该燃料颗粒的低燃尽照射数据，这表明到目前为止，已经根据原始设计预期满足了性能指标。