element
Information about Lead-181:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:180.996714±0.000174amu #
    Excess Mass (Δ):-3.061000±0.162000MeV #
    Binding Energy:1399.818000±0.162000MeV #
"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: 13/2+)
  • Half life: 45 ms ( 0.045 sec., λ = 15.4033 s-1)
  • Mode of decay:
    α
    to
    177
    80
    Hg
      (Q = 7.370 MeV)   Branch ratio: <100.00 %
  • Mode of decay: E.C. to
    181
    81
    Tl
      (Q = 9.300 MeV)   Branch ratio: ~2.00 %
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)