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Energy distribution of the primary cosmic radiation

Neher, H. V. (1951) Energy distribution of the primary cosmic radiation. Physical Review, 83 (3). pp. 649-650. ISSN 0031-899X.

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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.

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Additional Information:©1951 The American Physical Society. Received 11 June 1951. Assisted in part by the joint program of the ONR and AEC.
Issue or Number:3
Record Number:CaltechAUTHORS:NEHpr51
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8943
Deposited By: Tony Diaz
Deposited On:08 Oct 2007
Last Modified:02 Oct 2019 23:55

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