Abstract
Isotopically pure β-ray sources of Re 186 and Re 188 were prepared from pile irradiated natural Re in an isotope separator. The spectrum of the β-rays from Re 188 to the ground state of Os 188 was found not to have the allowed shape. The deviations are of the type earlier observed in the decay Re 186 → Os 186. Both transitions probably proceed from a 1 − to a 0 + state. The K-conversion lines for the transitions from the 633 keV level in Os 188 to the ground state and to the 155 keV 2 + level were observed. The conversion coefficients indicate E2 nature for these transitions in agreement with an angular correlation experiment. The level schemes of Os 186 and Os 188 indicate that these nuclei lie in the transitional region between the strongly deformed nuclei and those of spherical equilibrium shape.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
