229m
Th(3/2+, 3.5 eV) and a check of the exponentiality of the decay law |
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| Authors: | A M Dykhne E V Tkalya |
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| Institution: | (1) Scientific-Research Institute of Nuclear Physics, M. V. Lomonosov Moscow State University, 119899 Moscow, Russia;(2) Troitsk Institute of Innovational and Thermonuclear Studies, Troitsk |
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| Abstract: | A new object is proposed for checking the exponentiality of the decay law of an isolated metastable state at long times —
the anomalously low-lying level 3/2+ (3.5±0.5 eV) in 229Th. Highly efficient excitation of this level by laser radiation in combination with optimal collection of optical photons
emitted in an isomeric transition make it possible to achieve measurement times longer than 50T
1/2.
Pis’ma Zh. éksp. Teor. Fiz. 67, No. 8, 521–525 (25 April 1998) |
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