Concept information
Preferred term
Van Allen radiation belts
Definition
- The ring-shaped regions of charged particles surrounding the Earth from 1 to 6 Earth radii into space. The charged particles are trapped in by the Earth's magnetic field. The inner belt is between 1.2 and 4.5 Earth radii and contains high-energy electrons and protons which originate mainly from interactions between cosmic rays and the upper atmosphere. The outer belt, located between 4.5 and 6.0 Earth radii, contains lower-energy charged particles mainly coming from the solar wind. (en)
Broader concept
Entry terms
- Radiation belts (en)
- Van Allen belts (en)
URI
http://astrothesaurus.org/uat/1758
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