ÚTEFČVUT Ústav technické a experimentální fyziky ČVUT v PrazeInstitute of Experimental and Applied Physics, CTU in Prague

Decay modes of the 9/2(-) isomeric state in Tl-183

NázevTitle
Decay modes of the 9/2(-) isomeric state in Tl-183Decay modes of the 9/2(-) isomeric state in Tl-183
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
M. Venhart, A. N. Andreyev, J. G. Cubiss, J. L. Wood, M. Veselský
Klíčová slovaKeywords
nuclear-data sheets, alpha decay, shape coexistence, isotopes, Energy, TL
DOIDOI
10.1103/PhysRevC.105.034338
Časopis / citaceJournal / citation
Physical Review C 105(3), 034338 (2022) · ISSN 2469-9985
RokYear
2022
JazykLanguage
eng
ZáznamyRecords
ProjektProject
Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.
CitovánoCited by
3 (INSPIRE-HEP)
2022: 12023: 02024: 12025: 1
Plný text (open access)Full text (open access)
http://link.aps.org/pdf/10.1103/PhysRevC.105.034338
Citace ke staženíDownload citation
TXT · BibTeX

AbstraktAbstract

The internal transition decay and alpha decay of the T-1/2 = 53.3 ms, 9/2(-) isomeric state in the neutron-deficient isotope, Tl-183, have been studied using the Resonance Ionization Laser Ion Source and the Windmill detection setup at the ISOLDE facility at CERN. Clean samples of Tl-183m were produced by selective laser ionization and subsequent mass separation. An internal transition cascade of 356.5-272.2 keV gamma rays has been identified. Multipolarities of these transitions have been determined by means of simultaneous gamma-ray and conversion- electron spectroscopy. Improved data for the fine structure of the Tl-183m -> 179 Au decay were deduced. This involves a 6058 keV alpha-decay transition, which populates a previously unknown state in Au-179, that is tentatively assigned as a (9/2(-)). It is interpreted as a coupling of the 1h(9/2) proton-intruder with the excited 0(+) state in the Pt-178 core.

The internal transition decay and alpha decay of the T-1/2 = 53.3 ms, 9/2(-) isomeric state in the neutron-deficient isotope, Tl-183, have been studied using the Resonance Ionization Laser Ion Source and the Windmill detection setup at the ISOLDE facility at CERN. Clean samples of Tl-183m were produced by selective laser ionization and subsequent mass separation. An internal transition cascade of 356.5-272.2 keV gamma rays has been identified. Multipolarities of these transitions have been determined by means of simultaneous gamma-ray and conversion- electron spectroscopy. Improved data for the fine structure of the Tl-183m -> 179 Au decay were deduced. This involves a 6058 keV alpha-decay transition, which populates a previously unknown state in Au-179, that is tentatively assigned as a (9/2(-)). It is interpreted as a coupling of the 1h(9/2) proton-intruder with the excited 0(+) state in the Pt-178 core.

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