Investigation of the primary cosmic radiation with nuclear photographic emulsions

Bradt, H. L. ; Peters, B. (1948) Investigation of the primary cosmic radiation with nuclear photographic emulsions Physical Review, 74 (12). pp. 1828-1837. ISSN 0031-899X

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Official URL: http://prola.aps.org/abstract/PR/v74/i12/p1828_1

Related URL: http://dx.doi.org/10.1103/PhysRev.74.1828

Abstract

Several methods for determining the charge and energy of heavy nuclei found to be present in the primary cosmic radiation, are discussed. The application to a number of tracks of the heavy primary cosmic-ray component in Ilford C2 emulsions shows the presence of nuclei from the neighborhood of carbon in the periodic system up to the neighborhood of iron (Z≈20÷30). A nuclear explosion caused by the collision of a ≳3-Bev carbon or oxygen nucleus with a silver nucleus of the emulsion is discussed. It is shown that both the magnitude of the flux and the distribution of ranges of the nuclei of the heavy primary cosmic-ray component may give valuable information regarding the origin of cosmic rays.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:75874
Deposited On:28 Dec 2011 11:47
Last Modified:28 Dec 2011 11:47

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