element
Information about Osmium-181:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:180.953274±0.000215amu
    Excess Mass (Δ):-43.524522±0.200509MeV
    Binding Energy:1444.975092±0.200509MeV
    β- Decay Energy:-4.068450±0.064181MeV
"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: 1/2-
  • Half life: 105 min ( 6300 sec., λ = 0.000110023 s-1)
  • Mode of decay:
    E.C.
    to
    181
    75
    Re
      (Q = 2.930 MeV)
    Meta state at 0.049 Mev
  • Spin: (7/2)- 105
  • Half life: 2.7 min ( 162 sec., λ = 0.00427869 s-1)
  • Mode of decay:
    E.C.
    to
    181
    75
    Re
      (Q = 2.979 MeV)

  • Possible parent nuclides:
    E.C. from
    181
    77
    Ir
    α from
    185
    78
    Pt
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)