Neher, H. V. (1951) Energy distribution of the primary cosmic radiation. Physical Review, 83 (3). pp. 649-650. ISSN 0031-899X. http://resolver.caltech.edu/CaltechAUTHORS:NEHpr51
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The primary cosmic-ray energy spectrum usually assumed, N(E) = kE-n, where n has been assigned various values ranging from 2.5 to 2.9, by different writers obviously cannot hold for small values of the particle energy, E. To assume a cutoff of the primary radiation at an assigned value of, say, 3 or 4 Bev is also unsatisfactory, since a latitude effect at 30,000 ft,(1) as well as at balloon altitudes,(2,3) has been measured down to energies for protons to at least 1 Bev. It therefore appears (at least at the time these experiments were performed) that no definite cutoff occurs, although the energy brought in by these low energy particles must be relatively small.
|Additional Information:||©1951 The American Physical Society. Received 11 June 1951. Assisted in part by the joint program of the ONR and AEC.|
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|Deposited By:||Tony Diaz|
|Deposited On:||08 Oct 2007|
|Last Modified:||26 Dec 2012 09:43|
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