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Article << Previous     |     Next >>   Contents Vol 18(1)

Variation of Proton Flux with Atmospheric Depth Between 10 and 50 g/cm2 at l = 47° S. Geomagnetic

KKM Wu and BSK Chow

Australian Journal of Physics 18(1) 59 - 66
Published: 1965

Abstract

Proton fluxes at atmospheric depths between 10 and 50 g/cm2 have been measured using nuclear emulsions during a series of balloon flights over Melbourne (A = 47° S. geomagnetic) in the period November 1961-April 1962. The proton flux J(x) decreases with increasing depth within this region. It can be represented by the relation log J(x) = (3·05±0·02)-(2·36±0·66)xlO-3x and, when extrapolated, gives the flux at the top of the atmosphere to be 1120±50 protons m-2 steradian-1 S-l.



Full text doi:10.1071/PH650059

© CSIRO 1965

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