Nuclear Energy and Nuclear Disasters. Any material in which neutrons can cause a fission reaction. The three primary fissile materials are uranium-233, uranium-235, and plutonium-239
Centers for Disease Control and Prevention, Emergency Preparedness and Response, Radiation Emergencies, Radiation Dictionary, U.S. Department of Health and Human Services, Atlanta, GA, USA 2011. http://emergency.cdc.gov/radiation/glossary.asp, (Dzstr/ Rad Emr - Amer) {820}
U.S. Department of Health and Human Services, Office of the Assisstant Secretary for Preparedness and Response, National Library of Medison, Radiation Emergency Medical Management (REMM), Dictionary of Radiation Terms, Washington, DC, USA 2014. http://www.remm.nlm.gov/dictionary.htm, (Dzstr/ Rad Emr - Amer) {822}