Existence of long-lived isomeric states in naturally-occurring neutron-deficient Th isotopes

2006/05/10 by A. Marinov, Ilia Rodushkin, I. Rodushkin +11 · 3 citations
Chemistry · Physics and Astronomy · #Astronomical and nuclear sciences #Atomic mass #Atomic physics #Chemistry #Isotope #Neutron #Nuclear Physics and Applications #Nuclear physics #Nuclear physics research studies #Physics #nucl-ex

paper · pdf · doi:10.1103/physrevc.76.021303

published as Phys.Rev.C76:021303,2007 · 13 pages including 6 figures and 1 table

arxiv created 2006/05/10 · openalex publication_date 2007/08/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Four long-lived neutron-deficient Th isotopes with atomic mass numbers 211 to 218 and abundances of (1--10)\ifmmode×\else\texttimes\fi10^\ensuremath-11 relative to ²³²Th 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.

Citations

• STRONGLY ENHANCED LOW ENERGY α-PARTICLE DECAY IN HEAVY ACTINIDE NUCLEI AND LONG-LIVED SUPERDEFORMED AND HYPERDEFORMED ISOMERIC STATES

Cited by

• Search for long-lived isomeric states in neutron-deficient thorium isotopes
• Extended periodic table [wikipedia]
• Unbibium [wikipedia]