OBSERVATION OF ENHANCED NUCLEAR-STABILITY NEAR THE 162-NEUTRON SHELL

Authors
LOUGHEED RW MOODY KJ WILD JF HULET EK MCQUAID JH LAZAREV YA LOBANOV YV OGANESSIAN YT UTYONKOV VK ABDULLIN FS BUKLANOV GV GIKAL BN ILIEV S MEZENTSEV AN POLYAKOV AN SEDYKH IM SHIROKOVSKY IV SUBBOTIN VG SUKHOV AM TSYGANOV YS ZHUCHKO VE
Citation
Rw. Lougheed et al., OBSERVATION OF ENHANCED NUCLEAR-STABILITY NEAR THE 162-NEUTRON SHELL, Journal of alloys and compounds, 213, 1994, pp. 61-66
Citations number
25
Categorie Soggetti
Chemistry Physical","Metallurgy & Mining","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
213
Year of publication
1994
Pages
61 - 66
Database
ISI
SICI code
0925-8388(1994)213:<61:OOENNT>2.0.ZU;2-7
Abstract
In bombardments of Cm-248 With Ne-22 we discovered two new isotopes, ( 265)106 and (266)106, by establishing genetic links between a:decays o f the 106 nuclides and spontaneous fission (SF) or alpha decays of the daughter (or granddaughter) nuclides. For (266)106 We measured E(alph a) = 8.63 +/- 0.05 MeV followed by the SF decay of (262)104 for which we measured a half-life value of 1.2(-0.5)(+1.0) s. For (265)106 we me asured E(alpha) = 8.71-8.91 MeV. We estimated alpha half-lives of 10-3 0 s for (266)106 and 2-30 s for (265)106 with SF branches of approxima tely 50% or less. The decay properties of (266)106 indicate a large en hancement in the SF stability of this N = 160 nuclide and confirm the existence of the predicted deformed shells N = 162 and Z = 108.