title: Invited paper delivered at the 25th Annual Meeting of the Health Physics Society. Protection programs of the Plutonium Project.
mesh_terms: D049673:History, 20th Century; D011005:Plutonium / Q000266:history*; D011834:Radiation Monitoring / Q000295:instrumentation; D011835:Radiation Protection; D014481:United States
chemical_list: D011005:Plutonium