74-W-185
Spin
Level energy(keV) Spin & Parity
----------------------------------------
ground state 3/2-
1.97430E+02 11/2+
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)
184.953418974 ± 0.000000993 (amu) [mass excess = -43389.946 ± 0.925 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012)
432.668 ± 0.860 (keV)
Strong Gamma-rays from Decay of W-185 (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
----------------------------------------------------------
65.86 5.8 IT
131.55 4.33 IT
173.68 3.26 IT
----------------------------------------------------------
125.36 0.02 B-
----------------------------------------------------------
*: 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- 75.1 D 3
IT 1.67 M 3
Evaluated Data Libraries
Links to the libraries.
Parent Nuclides by Reactions in JENDL-4.0
W -184 (Z= 74, A=184), MT=102 (n,γ)
W -186 (Z= 74, A=186), MT= 16 (n,2n)
Os-187 (Z= 76, A=187), MT=106 (n,3He)
Os-188 (Z= 76, A=188), MT=107 (n,α)
Os-189 (Z= 76, A=189), MT= 22 (n,nα)
Os-190 (Z= 76, A=190), MT= 24 (n,2nα)