12-Mg-27
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)
26.984340624 ± 0.000000053 (amu) [mass excess = -14586.614 ± 0.050 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
2610.133 ± 0.114 (keV)
Strong Gamma-rays from Decay of Mg- 27 (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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170.69 0.8 B-
843.76 71.8 B-
1014.44 28. 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- 9.458 M 12
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Mg- 26 (Z= 12, A= 26), MT=102 (n,γ)
Al- 27 (Z= 13, A= 27), MT=103 (n,p)
Si- 30 (Z= 14, A= 30), MT=107 (n,α)