84-Po-201
Spin
Level energy(keV) Spin & Parity
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ground state 3/2-
4.24000E+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)
200.982259806 ± 0.000006278 (amu) [mass excess = -16524.884 ± 5.848 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-5735.526 ± 10.059 (keV)
Strong Gamma-rays from Decay of Po-201 (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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240.1 14.56 EC
890.1 20.52 EC
904.2 11.24 EC
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6.3 -- IT
417.8 56.2 IT
411.86 * 13.25 EC
964.3 * 33.95 EC
967.4 * 40.12 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
A 8.9 M 2
A 15.3 M 2
EC 8.96 M 12
EC 15.6 M 1
IT 8.96 M 12
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0