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- High energy particles or rays emitted during the nuclear decay processes.
- (ionizing radiation) Alpha particles, beta particles, gamma rays, x-rays, neutrons, high-speed electrons, high-speed protons, and other particles capable of producing ions. Radiation does not include non-ionizing radiation, such as radio- or microwaves, or visible, infrared, or ultraviolet light. Source: U.S. Nuclear Regulatory Commission
- Transmission of energy though space or any medium. Also known as radiant energy.
Source: Terms of the Environment
- Energy released in the form of particles or electromagnetic waves. Common sources of radiation include radon gas, cosmic rays from outer space, and medical x-rays.
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