element
Information about Uranium-229:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:229.033496±0.000009amu
    Excess Mass (Δ):31.201446±0.007961MeV
    Binding Energy:1745.154964±0.007967MeV
    β- Decay Energy:-2.562287±0.087154MeV
"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: (3/2+)
  • Half life: 58 min ( 3480 sec., λ = 0.00019918 s-1)
  • Mode of decay:
    E.C.
    to
    229
    91
    Pa
      (Q = 1.309 MeV)   Branch ratio: ~80.00 %
  • Mode of decay:
    α
    to
    225
    90
    Th
      (Q = 6.475 MeV)   Branch ratio: ~20.00 %

  • Possible parent nuclides:
    α from
    233
    94
    Pu
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)