Internal Conversion inPr144,In114,Ba137, andCd110

Abstract

Beta-ray spectrometer measurements have been made of the internal conversion ratio $\frac{{\alpha }_K}{{\alpha }_L}$ for four nuclear transitions. Values obtained are: 5.3±0.1 for the 132-kev transition in ${\mathrm{Pr}}^{144}$; 1.30±0.05, 192 kev, ${\mathrm{In}}^{114}$; 4.57±0.05, 662 kev, ${\mathrm{Ba}}^{137}$; and 14±2, 656 kev, ${\mathrm{Cd}}^{110}$. Tentative assignments of multipolarity are given.