The use of actinides in the civilian industry and defense sectors over the past 60 years has resulted in persistent environmental and health issues, since a large inventory of radionuclides, including actinides such as thorium (Th), uranium (U), neptunium (Np), plutonium (Pu), americium (Am) and curium (Cm), are generated and released during these activities.¹  Controlled processing and disposal of wastes from the nuclear fuel cycle are the main source of actinide dissemination. However, significant quantities of these radionuclides have also been dispersed as a consequence of nuclear weapons testing, nuclear power plant accidents, and compromised storage of nuclear materials....