element
Information about Hafnium-181:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:180.949099±0.000003amu
    Excess Mass (Δ):-47.413853±0.002590MeV
    Binding Energy:1451.993837±0.002601MeV
    β- Decay Energy:1.027231±0.002659MeV
"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: 42.39 days ( 3.6625×10+06 sec., λ = 1.89255×10-07 s-1)
  • Mode of decay:
    β-
    to
    181
    73
    Ta
      (Q = 1.027 MeV)

  • Possible parent nuclides:
    β- from
    181
    71
    Lu
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)