element
Information about Californium-247:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:247.070992±0.000009amu
    Excess Mass (Δ):66.128652±0.008159MeV
    Binding Energy:1850.817448±0.008166MeV
    β- Decay Energy:-2.476000±0.031000MeV #
"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: (7/2+)
  • Half life: 3.11 h ( 11196 sec., λ = 6.19103×10-05 s-1)
  • Mode of decay:
    E.C.
    to
    247
    97
    Bk
      (Q = 0.646 MeV)   Branch ratio: 99.97 %
  • Mode of decay:
    α
    to
    243
    96
    Cm
      (Q = 6.527 MeV)   Branch ratio: 0.04 %

  • Possible parent nuclides:
    E.C. from
    247
    99
    Es
    α from
    251
    100
    Fm
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)