63-Eu-140
Spin
Level energy(keV) Spin & Parity
----------------------------------------
ground state 1+
ground state(+X) (5-)
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)
139.928087637 ± 0.000055328 (amu) [mass excess = -66985.934 ± 51.538 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-5203.663 ± 58.627 (keV)
Strong Gamma-rays from Decay of Eu-140 (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
----------------------------------------------------------
459.9 3.19 EC
531.0 29. EC
1068.0 3.19 EC
----------------------------------------------------------
< 59. -- IT
174.6 39.1 IT
185.3 35.97 IT
----------------------------------------------------------
*: 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 1.51 S 2
IT 125 MS 2
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0