Neutron and Meson Stars Induced in the Light Elements of the Emulsion

Abstract
Laminated emulsions have been exposed to the neutron and positive meson beam at the Nevis cyclotron. In the case of the neutron exposure (300 Mev) it has been found that 21±3 percent of the emulsion stars originate in light nuclei. The number of fast protons and their angular distribution is similar in stars from light and heavy elements. The black tracks in light element stars show a marked forward excess.