The Transmutation of Scandium by Th C' Alpha-Particles

Abstract

The emission of protons from scandium under bombardment by Th C' alpha-particles has been observed according to the reaction ${\mathrm{Sc}}^{45}$+${\mathrm{He}}^4$→${\mathrm{Ti}}^{48}$+${\mathrm{H}}^1$. Three groups of protons are found corresponding to nuclear energy changes -0.3, -1.4 and -2.6 Mev. With Dempster's value for the mass of ${\mathrm{Ti}}^{48}$ the mass of ${\mathrm{Sc}}^{45}$ is deduced to be 44.9599.