element
Information about Gold-181:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:180.969948±0.000481amu #
    Excess Mass (Δ):-27.993000±0.448000MeV #
    Binding Energy:1427.097000±0.448000MeV #
    β- Decay Energy:-7.319000±0.545000MeV #
"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: 5/2-
  • Half life: 11.4 s ( 11.4 sec., λ = 0.0608024 s-1)
  • Mode of decay:
    E.C.
    to
    181
    78
    Pt
      (Q = 6.300 MeV)   Branch ratio: 98.50 %
  • Mode of decay:
    α
    to
    177
    77
    Ir
      (Q = 5.752 MeV)   Branch ratio: 1.50 %

  • Possible parent nuclides:
    E.C. from
    181
    80
    Hg
    α from
    185
    81
    Tl
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)