Internal conversion from excited electronic states of 229Th ions

被引：14
作者：
Bilous, Pavlo V. [1 ]
Kazakov, Georgy A. [2 ]
Moore, Iain D. [3 ]
Schumm, Thorsten [2 ]
Palffy, Adriana [1 ]
机构：
[1] Max Planck Inst Kernphys, Saupfercheckweg 1, D-69117 Heidelberg, Germany
[2] TU Wien, Vienna Ctr Quantum Sci & Technol VCQ, Atominst, Stad Allee 2, A-1020 Vienna, Austria
[3] Univ Jyvaskyla, Dept Phys, Survontie 9, FI-40014 Jyvaskyla, Finland
来源：
PHYSICAL REVIEW A | 2017年 / 95卷 / 03期
关键词：
TRANSITION; SPECTROSCOPY; EXCITATION; SEARCH; IGISOL;
D O I：
10.1103/PhysRevA.95.032503
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The process of internal conversion from excited electronic states is investigated theoretically for the case of the vacuum- ultraviolet nuclear transition of Th-229. Due to the very low transition energy, the Th-229 nucleus offers the unique possibility to open the otherwise forbidden internal conversion nuclear decay channel for thorium ions via optical laser excitation of the electronic shell. We show that this feature can be exploited to investigate the isomeric state properties via observation of internal conversion from excited electronic configurations of Th+ and Th2+ ions. A possible experimental realization of the proposed scenario at the nuclear laser spectroscopy facility IGISOL in Jyvaskyla, Finland, is discussed.
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页数：8
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