artificial radiation belt

artificial radiation belt

[¦ärd·ə¦fish·əl ‚rād·ē′ā·shən ‚belt]
(geophysics)
High-energy electrons trapped in the earth's magnetic field as a result of high-altitude nuclear explosions.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.