Abstract
An isotope of element 105 with mass number 260 has been formed by bombarding with ions. The and of the nuclide have been unambiguously identified by recoilmilking the 30-second daughter. has a (1.6±0.3)-sec half-life and decays by alpha-particle emission with groups at 9.06 (55%), 9.10 (25%), and 9.14 MeV (20%). Branching decay by spontaneous fission is less than 20%. Some comments are made on the earlier results of the Dubna group concerning a few alpha-particle events at 9.4 and 9.7 MeV which they claim to be due to element 105.
- Received 17 April 1970
DOI:https://doi.org/10.1103/PhysRevLett.24.1498
©1970 American Physical Society
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This article appears in the following collection:
Transuranium Elements and the Physical Review
This collection marks the 150th anniversary of Dmitri Mendeleev’s discovery of the Periodic Table of Elements.