The energy spectrum of primary cosmic radiation

Kaplon, M. F. ; Peters, B. ; Reynolds, H. L. ; Ritson, D. M. (1952) The energy spectrum of primary cosmic radiation Physical Review, 85 (2). pp. 295-309. ISSN 0031-899X

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Techniques have been developed by which the energy spectrum of heavy primary nuclei can be measured in the energy range of 109-1011 ev/nucleon and of both protons and α-particles in the energy range from 1011 to 1013 ev/nucleon. It is shown that even the heaviest nuclei in the primary radiation (Z˜26) have lost their orbital electrons before entering the atmosphere, which supports the assumption that they do nor proceed from the solar corona directly to the earth. It is also shown that the velocity spectrum of all primaries of charge Z>1 is independent of the mass of the nuclei, and that it differs only slightly from that of the proton component in the energy interval between 3×108 and 1010 ev/nucleon.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:75873
Deposited On:28 Dec 2011 11:49
Last Modified:28 Dec 2011 11:49

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