Annual Deposition of Cosmic Ray Produced Be7at Equatorial Latitudes

Abstract
The concentration of cosmic ray produced Be7 in rain water has been measured at two stations in the equatorial latitudes. Its rate of deposition at the earth's surface has been estimated to be about 5 times 105 atoms cm−2 yr−1 and the deposited quantity seems to be independent of latitude. DOI: 10.1111/j.2153-3490.1958.tb01990.x
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