element
Information about Actinium-228:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:228.031015±0.000003amu
    Excess Mass (Δ):28.890119±0.002641MeV
    Binding Energy:1741.742028±0.002659MeV
    β- Decay Energy:2.127045±0.002979MeV
"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: 3+
  • Half life: 6.15 h ( 22140 sec., λ = 3.13075×10-05 s-1)
  • Mode of decay:
    β-
    to
    228
    90
    Th
      (Q = 2.127 MeV)

  • Possible parent nuclides:
    β- from
    228
    88
    Ra
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)