84-Po-199
Spin
Level energy(keV) Spin & Parity
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ground state 3/2-
3.10000E+02 13/2+
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)
198.983667115 ± 0.000025167 (amu) [mass excess = -15213.984 ± 23.444 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-6390.551 ± 24.054 (keV)
Strong Gamma-rays from Decay of Po-199 (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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361.9 * 36.6 EC
1001.7 *100. EC
1033.8 * 83. EC
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72. -- IT
238. 0.04 IT
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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
A 4.17 M 5
A 5.47 M 15
EC 4.17 M 6
IT 4.17 M 5
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0