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Radiation, as used in physics, is energy in the form of waves or moving subatomic particles. Radiation can be classified as ionizing or non-ionizing radiation, depending on its effect on atomic matter. The most common use of the word "radiation" refers to ionizing radiation. Ionizing radiation has enough energy to ionize atoms or molecules while non-ionizing radiation does not. Radioactive material is a physical material that emits ionizing radiation.  

Types of Radiation

There are several forms of radiation:

Effects of electromagnetic fields

Positively charged alpha particles are deflected by both magnetic and electric fields. Negatively charged beta particles are also deflected by both types of fields, but in the opposite direction from alpha particles. Neutrons and electromagnetic radiation have no charge, and are unaffected by electromagnetic fields.

See also

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Radiation". A list of authors is available in Wikipedia.
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