Source:http://linkedlifedata.com/resource/umls/id/C0034538
MSH: 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.,CSP: radiation with sufficient quantal energy to cleave covalent bonds in biomolecules, resulting in ion pair products.,NCI: A type of radiation made (or given off ) by x-ray procedures, radioactive substances, rays that enter the Earth's atmosphere from outer space, and other sources. At high doses, ionizing radiation increases chemical activity inside cells and can lead to health risks, including cancer.,NCI: High-energy radiation capable of producing ionization in substances through which it passes.