55-Cs-127
Spin
Level energy(keV) Spin & Parity
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ground state 1/2+
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)
126.907417384 ± 0.000005988 (amu) [mass excess = -86240.151 ± 5.578 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-3422.207 ± 12.653 (keV)
Strong Gamma-rays from Decay of Cs-127 (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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65.9 11.4 IT
178.8 42.1 IT
206.0 58.5 IT
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124.70 11.37 B+
411.95 62.8 B+
462.31 5.07 B+
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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
B+ 6.25 H 10
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0