Nonproliferation and arms control impacts on declared excess fissile material

The presence of nuclear materials derived from dismantled nuclear weapons presents new safeguards and security issues for international inspections, for example, inspections by the International Atomic Energy Agency. The requirements of an IAEA inspection under existing guidance and the areas of conflicting interests are discussed. Possible solutions to these issues are presented. Experiences with actual inspections of material at the Y-12 facility at Oak Ridge and the Rocky Flats Environmental Technology Site are presented. A technique to recast some of the material is discussed. A new nondestructive assay/verification instrument that may satisfy the requirements of an inspection is described.