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Synthesis of the New Element with Z=117

Authors :
A. V. Ramayya
M. A. Ryabinin
P. D. Bailey
Grigory K. Vostokin
K. P. Rykaczewski
Yu. Ts. Oganessian
Julie G. Ezold
P. A. Wilk
C. E. Porter
V. K. Utyonkov
M E Bennett
J. H. Hamilton
I. V. Shirokovsky
A. A. Voinov
F. Sh. Abdullin
Ralf Sudowe
R. N. Sagaidak
M. A. Stoyer
A. M. Sukhov
F. D. Riley
S. N. Dmitriev
James B. Roberto
Tu S Tsyganov
V. G. Subbotin
S. L. Nelson
D. A. Shaughnessy
Dennis Benker
Yu. V. Lobanov
Kenton J. Moody
Roger Henderson
M. G. Itkis
A. N. Mezentsev
A. N. Polyakov
Source :
Journal of Physics: Conference Series. 312:082026
Publication Year :
2011
Publisher :
IOP Publishing, 2011.

Abstract

The synthesis of the new chemical element with atomic number Z=117 is presented. The isotopes 293117 and 294117were produced in fusion reactions between 48Ca and 249Bk. The 249Bk was produced in the High Flux Isotope Reactor and chemically separated at Oak Ridge. Decay chains involving eleven new nuclei were identified by means of the Dubna Gas Filled Recoil Separator. The measured decay properties show a strong rise of stability for super-heavy nuclei toward N=184.

Details

ISSN :
17426596
Volume :
312
Database :
OpenAIRE
Journal :
Journal of Physics: Conference Series
Accession number :
edsair.doi...........dec84e9c4f568fc76c3de9db1238d3ba
Full Text :
https://doi.org/10.1088/1742-6596/312/8/082026