Actions for Synthesis of the isotopes of elements 118 and 116 in the 249Cf and 245Cm+48Ca fusion reactions [electronic resource].

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Synthesis of the isotopes of elements 118 and 116 in the 249Cf and 245Cm+48Ca fusion reactions [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2006.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
PDF-file: 15 pages; size: 0.3 Mbytes
Additional Creators
Lawrence Berkeley National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The decay properties of ²⁹°116 and ²⁹¹116, and the dependence of their production cross sections on the excitation energies of the compound nucleus, ²⁹³116, have been measured in the ²⁴⁵Cm(⁴⁸Ca,xn){sup 293-x}116 reaction. These isotopes of element 116 are the decay daughters of element 118 isotopes, which are produced via the ²⁴⁹Cf+⁴⁸Ca reaction. They performed the element 118 experiment at two projectile energies, corresponding to ²⁹⁷118 compound nucleus excitation energies of E* = 29.2 ± 2.5 and 34.4 ± 2.3 MeV. During an irradiation with a total beam dose of 4.1 x 10¹⁹ ⁴⁸Ca projectiles, three similar decay chains consisting of two or three consecutive α decays and terminated by a spontaneous fission (SF) with high total kinetic energy of about 230 MeV were observed. The three decay chains originated from the even-even isotope ²⁹⁴118 (E{sub α} = 11.65 ± 0.06 MeV, T{sub α} = 0.89{sub -0.31}{sup +1.07} ms) produced in the 3n-evaporation channel of the ²⁴⁹Cf+⁴⁸Ca reaction with a maximum cross section of 0.5{sub -0.3}{sup +1.6} pb.
Report Numbers
E 1.99:ucrl-jrnl-220958
ucrl-jrnl-220958
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Note
Published through SciTech Connect.
01/31/2006.
"ucrl-jrnl-220958"
Physical Review C, vol. 74, no. 4, October 9, 2006, pp. 044602 74 4 FT
Wild, J F; Kenneally, J M; Lougheed, R W; Landrum, J H; Moody, K J; Polyakov, A N; Mezentsev, A N; Stoyer, M A; Voinov, A A; Shaughnessy, D A; Wilk, P A; Stoyer, N J; Oganessian, Y T; Sagaidak, R N; Zagrebaev, V I; Shirokovsky, I V; Utyonkov, V K; Subbotin, V G; Sukhov, A M; Itkis, M G; Bogomolov, S L; Subotic, K; Lobanov, Y V; Tsyganov, Y S; Abdullin, F S; Iliev, S; Gikal, B N; Gulbekian, G G; . Patin, J B; Vostokin, G K.
Funding Information
W-7405-ENG-48
View MARC record | catkey: 14759616