| Thème(s) : |
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Chimie/Radiochimie
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| Titre : |
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Existence of long-lived isomeric states in naturally-occurring neutron-deficient Th isotopes |
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| Auteur : |
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A. Marinov, I. Rodushkin, Y. Kashiv, L. Halicz, I. Segal, A. Pape1, R.V. Gentry, H.W. Miller, D. Kolb, R. Brandt |
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| Laboratoire : |
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| Résumé : |
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Four long-lived neutron-deficient Th isotopes with atomic mass numbers 211 to 218 and abundances of (1-10)x10(-11) relative to Th-232 have been found in a study of naturally-occurring Th using inductively coupled plasma-sector field mass spectrometry. It is deduced that long-lived isomeric states exist in these isotopes. The hypothesis that they might belong to a new class of long-lived high spin super- and hyperdeformed isomeric states is discussed. |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication
ou d'écriture : |
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2007 |
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| Nom du périodique : |
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| Physical Review C (Phys. Rev. C) |
| Publisher |
American Physical Society |
| ISSN |
0556-2813 (eISSN : 1089-490X) |
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| Volume : |
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76 |
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| Page/Article : |
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021303 |
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| Copyright : |
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©2007 The American Physical Society |
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| Classification PACS : |
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21.10.Tg, 21.10.Dr, 27.80.+w |
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| Mot(s)-clé(s) : |
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FIELD MASS-SPECTROMETRY – SPONTANEOUS FISSION – O-16+AU-197 REACTION – SUPERDEFORMED BAND – DECAY – ELEMENTS – DISCOVERY – NUCLEI – PLASMA – BETA |
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