element
Information about Tungsten-166:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:165.955020±0.000013amu
    Excess Mass (Δ):-41.898691±0.012114MeV
    Binding Energy:1323.844125±0.012116MeV
    β- Decay Energy:-10.044000±0.142000MeV #
"The 1995 update to the atomic mass evaluation" by G.Audi and A.H.Wapstra, Nuclear Physics A595 vol. 4 p.409-480, December 25, 1995.
Radioactive Decay Data:

  • Spin: 0+
  • Half life: 18.8 s ( 18.8 sec., λ = 0.0368695 s-1)
  • Mode of decay:
    E.C.
    to
    166
    73
    Ta
      (Q = 4.200 MeV)   Branch ratio: 99.97 %
  • Mode of decay:
    α
    to
    162
    72
    Hf
      (Q = 4.857 MeV)   Branch ratio: 0.04 %

  • Possible parent nuclides:
    α from
    170
    76
    Os
R.R.Kinsey, et al.,The NUDAT/PCNUDAT Program for Nuclear Data,paper submitted to the 9 th International Symposium of Capture-Gamma_raySpectroscopy and Related Topics, Budapest, Hungary, Octover 1996.Data extracted from NUDAT database (Jan. 14/1999)