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The predicted 10.6 keV transition in Fr-221 from the alpha-decay of Ac-225 revealed
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SYSNO ASEP 0185673 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title The predicted 10.6 keV transition in Fr-221 from the alpha-decay of Ac-225 revealed Author(s) Yakushev, E. A. (RU)
Chumin, V. G. (RU)
Gorozhankin, VM. (RU)
Gromov, KY. (RU)
Kovalík, Alojz (UJF-V) RID, ORCID, SAI
Filosofov, D. V. (RU)
Norseev, YV. (RU)
Yurkova, LV. (RU)Source Title Journal of Physics G-Nuclear and Particle Physics. - : Institute of Physics Publishing - ISSN 0954-3899
Roč. 28, č. 3 (2002), s. 463-467Number of pages 5 s. Language eng - English Country GB - United Kingdom Keywords electromagnetic transition ; electron conversion ; alpha-decay Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders R&D Projects GA202/02/0157 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z1048901 - UJF-V Annotation The low energy electron spectrum from the alpha-decay of Ac-225 has been measured with 20 eV instrumental resolution using an electrostatic spectrometer and radioactive sources prepared by vacuum evaporation. The predicted 10.642(5) keV M1 + < 0.05% E2 nuclear transition in Fr-221 have been revealed. Energies of 26.015(5), 36.660(5), 38.543(3) and 108.37(1) keV nuclear transition in Fr-221 have been essentially improved. Relative intensities of the measured conversion electron lines of these transitions have also been determined. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2003
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