Investigation of the decay182Re→182W

The single gamma-ray spectrum and gamma-gamma coincidence spectra have been studied in the decay of 64-hour isomer of¹⁸²Re with the aid of large coaxial Ge(Li)-detectors. A total of 14 new gamma-ray transitions have been observed and three new levels introduced. The experimental values of internal conversion coefficients for majority of transitions were determined and conclusions about their multipolarities were drawn. The character of the decay of the investigated¹⁸²Re isomer (64-hour) indicates that it is most probably the p402+n624 7⁺ -state.The authors are indebted to dr. J. Zvolský for helpful discussions and encouragement. Our thanks are due to dr. E. Ryndina who placed the large Ge(Li)-detectors at our disposal, and to dr. V. Fominykh for his help and suggestions with the coincidence circuits used in this research. One of us (P.G.) is grateful to dr. V. Brabec, head of the Nuclear Spectroscopy Department in e, for hospitality during his stay in Prague.