Internal Conversion Coefficient Of Ba-137

Internal conversion coefficient of Ba 137 has been investigated with a double coil, magnetic lens beta-ray spectrometer. The relative intensities of the internal conversion electrons of the 663 KeV gamma-ray for K and L, L and M energy levels have been estimated as 4.62±0.18 and 15.0±0.8, respectively. The value of K/L is in accored with the previous experimental values and that of L/M is presented as a new value.