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ERIC Number: ED297952
Record Type: RIE
Publication Date: 1986
Pages: 21
Abstractor: N/A
Reference Count: N/A
Understanding Radiation.
Department of Energy, Washington, DC. Nuclear Energy Office.
Radiation is a natural energy force that has been a part of the environment since the Earth was formed. It takes various forms, none of which can be smelled, tasted, seen, heard, or felt. Nevertheless, scientists know what it is, where it comes from, how to measure and detect it, and how it affects people. Cosmic radiation from outer space and radioactive elements in rocks and soil contribute to the natural background radiation that has always been around us. There are also manmade sources of radiation, such as dental and medical x-rays, smoke detectors, and materials released from nuclear and coal-fired powerplants. Radiation comes from the activity of tiny particles (atoms) of matter. Atoms are composed of protons, neutrons, and electrons, the arrangement of which distinguishes one atom from another. Atoms of different types are called elements. Some of the elements, such as radium, uranium, and thorium are unstable. As they change into more stable forms, they release invisible waves of energy or particles. This emitting of radiation is known as radioactivity. Additional information discussed includes: ionizing types; half-life; your exposure; units of measure; devices for measuring; health effects; limits; nuclear powerplants; and uses. (RT)
Energy, P.O. Box 62, Oak Ridge, TN 37831 (free while supply lasts).
Publication Type: Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: Department of Energy, Washington, DC. Nuclear Energy Office.
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