Van Allen belt vs Van Allen radiation belt

Van Allen belt and Van Allen radiation belt both are nouns.

Word	Noun	Adjective	Verb	Adverb
Van Allen belt	Yes	No	No	No
Van Allen radiation belt	Yes	No	No	No

As nouns, Van Allen belt and Van Allen radiation belt are synonyms defined as:

Van Allen belt and Van Allen radiation belt: a belt of charged particles (resulting from cosmic rays) above the Earth trapped by the Earth's magnetic field

Van Allen belt (noun)	Van Allen radiation belt (noun)
a belt of charged particles (resulting from cosmic rays) above the Earth trapped by the Earth's magnetic field	a belt of charged particles (resulting from cosmic rays) above the Earth trapped by the Earth's magnetic field