α decay of the new isotopes Rn193,194

A. N. Andreyev et al.
Phys. Rev. C 74, 064303 – Published 6 December 2006

Abstract

The new neutron-deficient isotopes Rn193,194 have been identified in the complete fusion reaction Cr52+Sm144Rn196* at the velocity filter SHIP. The α-decay energy and half-life value of Rn194 were determined to be Eα=7700(10) keV and T1/2=0.78(16) ms, respectively. For Rn193 the half-life of T1/2=1.15(27) ms and two α lines at Eα1=7685(15) keV, Iα1=74(20)% and Eα2=7875(20) keV, Iα2=26(12)% were found. The decay pattern of Rn193, which is substantially different from that of the heavier odd-A Rn isotopes, provides first experimental evidence for the long-predicted deformation in the very neutron-deficient Rn nuclei.

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  • Received 2 October 2006

DOI:https://doi.org/10.1103/PhysRevC.74.064303

©2006 American Physical Society

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Vol. 74, Iss. 6 — December 2006

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