Elsevier

Nuclear Physics A

Volume 368, Issue 1, 21 September 1981, Pages 153-163
Nuclear Physics A

Alpha decay of neutron-deficient isotopes with 52 ≦ Z ≦ 55, including the new isotopes 106Te (T12 = 60 μs) and 110Xe

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Abstract

Using 58Ni(58Ni,.xpγn) reactions and on-line mass separation, the α-decays of very neutron-deficient isotopes of tellurium, iodine, xenon and cesium were studied. The new isotopes 106Te (T12 = 60 +μs) and 110Xe were identified by their α-lines of 4160 ± 30 keV and 3737 ± 30 keV energy, respectively, with the genetic relationship between the two successive α-decays being verified experimentally, while for several other α-decaying isotopes more precise data were obtained. The observed α-decay properties are discussed within the systematics of energy and reduced width.

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    Citation Excerpt :

    This was proven in the early work of Karnaukhov et al. [5] and Macfarlane et al. [6] who performed experiments at JINR Dubna and Texas A&M, respectively, and identified light tellurium isotopes as α emitters. Lateron, the α-decay chain 110Xe → 106Te→ 102Sn was studied, including the new isotopes 110Xe and 106Te [7]. The observation that the α-decay energy of 106Te is larger than that of 110Xe (see Fig. 1) clearly indicates the increased binding of the double shell closure occurring at 100Sn.

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On leave of absence from Institute of Experimental Physics, University of Warsaw, 00-681 Warsaw, Poland.

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