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Latitude Effect of Penetrating Cosmic Ray Showers


IT has been shown by Broadbent and Jánossy1 that penetrating cosmic ray showers are of two types : (a) local penetrating showers ; (b) extensive penetrating showers. Local penetrating showers are supposed to be produced by primary nucleons, and they give rise to a transition effect which is proportional to mass. Extensive penetrating showers appear to be parts of extensive air showers. They show a strong transition effect in lead but almost none in paraffin.

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  1. Broadbent and Jánossy, Proc. Roy. Soc., A, 190, 497 (1947).

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  2. Jánossy, Proc. Roy. Soc., A, 183, 190 (1944).

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APPAPILLAI, V., MAILVAGANAM, A. Latitude Effect of Penetrating Cosmic Ray Showers. Nature 162, 887–888 (1948).

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