Survey of additive manufacturing signatures for the prevention of nuclear proliferation

We present a survey of additive manufacturing technologies and relevant signatures that could be used to identify processes, materials, or part properties.  Improvements in additive manufacturing technologies will enable multiple-material and advanced-material capabilities, creating opportunities to fundamentally change the process for nuclear fuel fabrication.  Additive manufacturing can allow fuel to have complex geometries and contain composites of materials that would otherwise be difficult or impossible to make with traditional manufacturing methods. This opportunity also has implications for nuclear proliferation, as nuclear parts may be printed and more easily acquired.