element
Information about Tungsten-181:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:180.948198±0.000006amu
    Excess Mass (Δ):-48.253195±0.005304MeV
    Binding Energy:1451.268471±0.005310MeV
    β- Decay Energy:-1.738673±0.014801MeV
"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: 9/2+
  • Half life: 121.2 days ( 1.04717×10+07 sec., λ = 6.61925×10-08 s-1)
  • Mode of decay:
    E.C.
    to
    181
    73
    Ta
      (Q = 0.188 MeV)

  • Possible parent nuclides:
    E.C. from
    181
    75
    Re
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)