Letter | Published:

Secondary Emission from Elements Bombarded with Neutrons

Abstract

In the course of observations of the neutrons produced by the bombardment of elements with accelerated heavy hydrogen ions, we have noticed repeatedly the production of remarkably strong ionising radiations when silver was placed in the beam. Silver is close to tin in the periodic table and it is probable, therefore, that the effects observed by Dr. Ollano are due to the neutrons in the radiation from Po + Be, and that the phenomenon is general in elements in that part of the periodic table.

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