Radiation
Radiation
Regular grammar
Category="Electromagnetic radiation"Category="Medical imaging"Category="Nuclear physics"Category="Particle physics"Category="Radioactive waste"Category="Radiology"Radiation has a variety of different meanings.Physics
- Cherenkov radiation - Emission of radiation by a particle moving through an insulating medium faster than the speed of light in that medium.
- Electromagnetic radiation - Stream of photons of a variety of different energies. At low frequencies, such as radio, it is common to regard the radiation as continuous rather than as photons.
- Ionizing radiation - Stream of particles (photons or other particles) with sufficient energy to cause ionization of atoms or molecules.
- Gravitational radiation - A predicted consequence of general relativity, however, it has not been directly observed.
- Non-ionizing radiation - Any type of electromagnetic radiation that does not carry enough energy to ionize living material.
- Particle radiation - Any kind of radiation in which the individual elements behave like particles.
- Synchrotron radiation - Emission of radiation by a charged particle undergoing acceleration.
- Thermal radiation - Process by which a hot object emits electromagnetic radiation; it is one of the three methods of heat flow.
- Radiant energy is radiation emitted by a source into the surrounding environment.
Biology
- Adaptive radiation - a process in evolutionary biology by which one species becomes many in order to adapt to specific ecological niches.
Meteorology
- eta radiation refers to insolation in the ETA meteorological model
Fiction
- Theta radiation and Omicron radiation are found in Star Trek
See also