Radiation (disambiguation)

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Radiation is a process in which a body emits energy that propagates through a medium, or through empty space, to be absorbed by other bodies. Radiation may also refer to:

Physics

• Electromagnetic radiation, radiation that takes the form of a self-propagating wave of electric and magnetic fields, including such phenomena as radio waves and visible light
• Ionizing radiation, radiation that is of high enough energy to cause atoms to lose or gain electrons, rendering molecules, such as proteins, incapable of functioning
• Nuclear radiation, radiation, especially ionizing radiation, that emanates from nuclear processes such as radioactive decay
• Thermal radiation, electromagnetic radiation that emanates from every object above absolute zero, in proportion to the fourth power of the temperature of the object
• Synchrotron radiation, also called a synchrotron light source, electromagnetic radiation generated by the acceleration of fast moving charged particles through magnetic fields

Medicine

• Radiation therapy, also called radiotherapy, a medical treatment that involves exposing part or all of the body to a controlled amount of ionizing radiation
• Radiation poisoning, a form of damage to organ tissue due to excessive exposure to ionizing radiation
• Radiation, characteristics of an affliction, such as pain, to spread to other parts of the body than the origin

Evolutionary biology

• Evolutionary radiation, a diversification into several lineages from a common ancestor
• Adaptive radiation, an evolutionary radiation to fill many ecological niches

Regulatory law

• Intentional radiator, radio waves that are produced by an electronic device as a necessary part of its function, such as those produced by a radio transmitter
• Unintentional radiator, undesirable radio waves that are produced by an electronic device, such as a computer or video game console, as a consequence of its design

Music and arts

• Radiation (album), released in 1998, the tenth studio album by the British progressive rock band Marillion
• "Radiation", a 1997 song by Feeder, from the album Polythene