Van Allen Belt Van Allen Radiation Belt
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Van Allen Belt Van Allen Radiation Belt
</dt>
(For James A. Van Allen, 1915 - .) The zone of high-intensity particulate
radiation surrounding the earth beginning at altitudes of approximately 1000
kilometers.
</dd>
The radiation of the Van Allen belt is composed of protons and
electrons temporarily trapped in the earth's magnetic field. The intensity of
radiation varies with the distance from the earth. [[/a>|/a>
]]
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use