element
Information about Californium-240:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:240.062295±0.000216amu #
    Excess Mass (Δ):58.027000±0.201000MeV #
    Binding Energy:1802.420000±0.201000MeV #
    β- Decay Energy:-6.172000±0.448000MeV #
"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: 0+
  • Half life: 1.06 min ( 63.6 sec., λ = 0.0108985 s-1)
  • Mode of decay:
    α
    to
    236
    96
    Cm
      (Q = 7.719 MeV)   Branch ratio: ~100.00 %
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)