Van Allenn.
/van ˈalən/, U.S. /ˌvæn ˈælən/ Used attributively to designate each of two regions reported by Van Allen in 1958, partly surrounding the earth at heights of several thousand kilometres and containing intense radiation and many high-energy charged particles trapped by the earth's magnetic field; also applied to similar regions around other planets.
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the world > the earth > weather and the atmosphere > [noun] > specific regions of
upper air1586
upper atmosphere1586
stratosphere1909
troposphere1909
ionosphere1926
ozone layer1927
ozonosphere1933
spray region1949
mesosphere1950
thermosphere1950
turbosphere1951
magnetosphere1959
Van Allen1959
ozone shield1965
plasmasphere1966
ozone1975
1959 Nature 8 Aug. 439 (heading) The upper boundary of the Van Allen radiation belts.
1965 Wireless World Sept. 447/1 This [sensitivity to radiation damage] limits the application of junction detectors in reactor instrumentation and in the van Allen belts.
1971 Nature 28 May 217/2 The circular polarization of about one per cent which is emitted by the planet Jupiter indicates the presence of a field of 0·4 gauss in its van Allen belts.
1974 Times Lit. Suppl. 13 Sept. 968/2 It girds us Transparently like the Van Allen Belt, Simply like the tie-belt of a mac.
1983 New Scientist 13 Jan. 93/2 They penetrated the Van Allen radiation belt (which is contained by the Earth's magnetic field) and loosened showers of electrons.
This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2021).
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n.1959