18-Ar-41
Spin
Level energy(keV) Spin & Parity
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ground state 7/2-
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)
40.964500570 ± 0.000000372 (amu) [mass excess = -33067.505 ± 0.347 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
2492.038 ± 0.347 (keV)
Strong Gamma-rays from Decay of Ar- 41 (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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1293.64 99.16 B-
1677.0 0.05 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- 109.61 M 4
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
Ar- 40 (Z= 18, A= 40), MT=102 (n,γ)
K - 41 (Z= 19, A= 41), MT=103 (n,p)
Ca- 44 (Z= 20, A= 44), MT=107 (n,α)