Unveiling the history of seized plutonium through nuclear forensic investigations

Abstract

Abstract Illicit incidents involving nuclear or other radioactive materials and the threat of nuclear terrorism are reasons for serious concern. Since 1993 more than 1300 incidents have been reported to the IAEA Illicit Trafficking Database. Only a small number of cases involve plutonium or plutonium containing materials. However, these cases are attributed particular attention in view of the proliferation aspects and of the radiotoxicity associated with plutonium. Efforts focus on prevention, detection and response to cases of illicit trafficking of nuclear material. If the place of theft or diversion of the material can be identified, then measures of safeguards and physical protection can be implemented to prevent future thefts. Nuclear Forensic Science aims at providing clues on the origin and intended use of nuclear or other radioactive material involved in illicit incidents. The paper provides a brief description of the nuclear forensic methodology and describes in detail the challenges associated with age determination of plutonium materials.