Summary: Two short-lived activities, with half-lives 2.61 ± 0.03 min and 1.2 ± 0.2 min, were produced by (d, xn) reactions on 144Sm. On the basis of chemical separations and their genetic relationships these activities were assigned to 143Eu and 142Eu, respectively. Gamma rays of 1.11 and 1.55 MeV are associated with the decay of 148Eu, and those of 0.77 and 1.03 MeV with the decay of 142Eu. Reported data on 144Eu could not be confirmed. The half-life of 143Sm has been re-determined as 8.84 ± 0.02 min. Analysis of the gamma ray spectra yielded a new gamma ray of 1.52 MeV.