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Radiation - Wikipedia In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium [1][2] This includes: electromagnetic radiation consisting of photons, such as radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma radiation (γ)
Radiation | Definition, Types, Effects, Facts | Britannica Radiation, flow of atomic and subatomic particles and of waves, such as those that characterize heat rays, light rays, and X rays All matter is constantly bombarded with radiation of both types from cosmic and terrestrial sources This article delineates the properties and behaviour of radiation
What is Radiation? | IAEA What is radiation good for? – Some examples Health: thanks to radiation, we can benefit from medical procedures, such as many cancer treatments, and diagnostic imaging methods Energy: radiation allows us to produce electricity via, for example, solar energy and nuclear energy
Radiation Basics | US EPA Radiation can come from unstable atoms or it can be produced by machines There are two kinds of radiation; ionizing and non-ionizing radiation Learn about alpha, beta, gamma and x-ray radiation
Radiation Basics | NRC. gov Radiation Basics Radiation is energy given off by matter in the form of rays or high-speed particles All matter is composed of atoms Atoms are made up of various parts; the nucleus contains minute particles called protons and neutrons, and the atom's outer shell contains other particles called electrons The nucleus carries a positive electrical charge, while the electrons carry a negative
Radiation - World Health Organization (WHO) Radiation is energy that travels in the form of waves or particles and is part of our everyday environment People are exposed to radiation from cosmic rays, as well as to radioactive materials found in the soil, water, food, air and also inside the body
How Radiation Works - HowStuffWorks Radiation is the emission and transmission of energy in the form of electromagnetic waves or particles Radiation can be ionizing or nonionizing radiation, and only ionizing radiation has enough energy to potentially cause damage to cells and DNA Sources of radiation include natural phenomena like cosmic rays and radioactive elements, as well as human-produced sources such as X-ray machines