85-At-200
Spin
Level energy(keV) Spin & Parity
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ground state (3+)
1.04000E+02 (7+)
3.35000E+02 (10-)
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)
199.990351015 ± 0.000026264 (amu) [mass excess = -8987.971 ± 24.465 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
-4973.633 ± 27.609 (keV)
Strong Gamma-rays from Decay of At-200 (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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484.4 * 48. EC
610.9 * 84. EC
665.9 *100. EC
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9. -- Alpha
102.0 -- Alpha
158.3 -- Alpha
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9. -- Alpha
102.0 -- Alpha
158.3 -- Alpha
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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 3.5 S 2
A 43 S 1
A 47 S 1
EC 47 S 1
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0