The alpha-decay energies and halflives of (195g,m)AT and Fr-199

Authors
Tagaya, Y Hashimoto, S Morita, K Pu, YH Ariga, T Ohta, K Minemura, T Hisanaga, I Motobayashi, T Nomura, T
Citation
Y. Tagaya et al., The alpha-decay energies and halflives of (195g,m)AT and Fr-199, EUR PHY J A, 5(2), 1999, pp. 123-125
Citations number
9
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL A
ISSN journal
14346001 → ACNP
Volume
5
Issue
2
Year of publication
1999
Pages
123 - 125
Database
ISI
SICI code
1434-6001(199906)5:2<123:TAEAHO>2.0.ZU;2-Y
Abstract
The alpha-decay energy and halflife of At-195m were determined to be 6960+/ -20 keV and 385(-51)(+69) ms respectively, on the basis of genetic correlat ions in the Tm-169(Ar-36, alpha 6n)At-195 reaction, while those of At-195g measured simultaneously were 7105+/-30 keV and 146(-17)(+21) ms respectivel y, reconfirming the previously reported values. A new isotope Fr-199 was al so produced and identified in the same way; in the Tm-169(Ar-36: 6n)Fr-199 reaction, yielding E-alpha=7655+/-40 keV and T-1/2=12(-4)(+10) ms.