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Radiation, Ionizing

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Definition: ELECTROMAGNETIC RADIATION or particle radiation (high energy ELEMENTARY PARTICLES) capable of directly or indirectly producing IONS in its passage through matter. The wavelengths of ionizing electromagnetic radiation are equal to or smaller than those of short (far) ultraviolet radiation and include gamma and X-rays.  policy: Manual 19.8.60, 21.16, 28.11.1; /adv eff   
Examples Alpha Particles; Background Radiation; Beta Particles; Cosmic Radiation; Gamma Rays; Ultraviolet Rays; X-Rays 		Other names Radiations, Ionizing; Ionizing Radiations; Ionizing Radiation

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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