level of radioactivity
121Technetium — molybdenum ← technetium → ruthenium Mn ↑ Tc ↓ Re …
122Electromagnetic radiation and health — Electromagnetic radiation can be classified into ionizing radiation and non ionizing radiation, based on whether it is capable of ionizing atoms and breaking chemical bonds. Ultraviolet and higher frequencies, such as X rays or gamma rays are… …
123Nuclear technology — A residential smoke detector is the most familiar piece of nuclear technology for some people Nuclear technology is technology that involves the reactions of atomic nuclei. Among the notable nuclear technologies are nuclear power, nuclear… …
124Mass–energy equivalence — E=MC2 redirects here. For other uses, see E=MC2 (disambiguation). 4 meter tall sculpture of Einstein s 1905 E = mc2 formula at the 2006 Walk of Ideas, Berlin, Germany In physics, mass–energy equivalence is the concept that the …
125Integral Fast Reactor — The Integral Fast Reactor or Advanced Liquid Metal Reactor is a design for a nuclear fast reactor with a specialized nuclear fuel cycle. A prototype of the reactor was built in the United States, but the project was canceled by the U.S.… …
126Environmental Measurements Laboratory — The Environmental Measurements Laboratory (EML), a United States government owned, government operated laboratory, is part of the Science and Technology (S T) Directorate of the Department of Homeland Security (DHS). A descendant of the Manhattan …
127Downwinders — refers to individuals and communities who are exposed to radioactive contamination or nuclear fallout from atmospheric or underground nuclear weapons testing, and nuclear accidents. Currently, this article focuses on incidents in the United… …
128Uranium mining — The Ranger Uranium Mine in Australia …
