radiation effects
51superfractionated radiation therapy — Radiation therapy that gives smaller doses (fractions) of radiation more often than standard radiation therapy so that the full treatment course can be given with fewer side effects. In superfractionated radiation therapy, individual doses are… …
52Ionizing radiation — consists of highly energetic particles or waves that can detach (ionize) at least one electron from an atom or molecule. Ionizing ability depends on the energy of the impinging individual particles or waves, and not on their number. A large flood …
53Cosmic microwave background radiation — CMB and Cosmic background radiation redirect here. For other uses see CMB (disambiguation) and Cosmic background (disambiguation). Physical cosmology …
54electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… …
55Health effects of tobacco — Part of a series on Tobacco …
56ultraviolet radiation — Portion of the electromagnetic spectrum extending from the violet end of visible light to the X ray region. Ultraviolet (UV) radiation lies between wavelengths of about 400 nanometres and 10 nanometres, corresponding to frequencies of… …
57Orders of magnitude (radiation) — Recognized effects of higher acute radiation doses are described in more detail in the article on radiation poisoning. Although the International System of Units (SI) defines the sievert (Sv) as the unit of radiation dose equivalent, chronic… …
58National Commission for Radiation Protection of Ukraine — NCRPU logo The National Commission for Radiation Protection of Ukraine (NCRPU) is a permanent independent collegial supreme scientific expert advisory and consultative body on matters of radiation protection and radiation safety of Ukraine. The… …
59Hawking radiation — is a thermal radiation with a black body spectrum predicted to be emitted by black holes due to quantum effects. It is named after the physicist Stephen Hawking, who provided a theoretical argument for its existence in 1974, and sometimes also… …
60ionizing radiation injury — also called radiation sickness tissue destruction or changes caused by deeply penetrating electromagnetic waves of high frequency or subatomic particles (subatomic particle) that form positively and negatively charged particles in the… …
