62-Sm-139
Spin
Level energy(keV) Spin & Parity
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ground state 1/2+
4.57400E+02 11/2-
Mass (The Ame2012 atomic mass evaluation (II) by M.Wang, G.Audi, A.H.Wapstra, F.G.Kondev, M.MacCormick, X.Xu, and B.Pfeiffer
Chinese Physics C36 p. 1603-2014, December 2012)
138.922296635 ± 0.000011684 (amu) [mass excess = -72380.218 ± 10.884 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-6982.177 ± 17.071 (keV)
Strong Gamma-rays from Decay of Sm-139 (Compiled from ENSDF as of March 2011)
[ Intensities before May 23th of 2013 were values when total intensity of the decay mode was 100(%) and a branching ratio of each decay mode was not multiplied. ]
γ-ray energy(keV) Intensity(%) Decay mode
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188.7 2.51 EC
155.3 36.73 IT
190.1 37.47 IT
267.3 36.73 IT
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273.7 36.5 EC
306.7 28.47 EC
596.3 8.03 EC
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*: relative, ~ approximate, ? calculated or estimatted
>: greater than or equal to, <: less than or equal to
[ Intensities; total intensity of the nuclide is 100(%). ]
Decay data(Chart of the Nuclides 2014)
Decay mode Half-life
EC 10.7 S 6
EC 2.57 M 10
IT 10.7 S 6
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0