Basic Info

n-XS summary


element
Information about Curium-243:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:243.061382±0.000002amu
    Excess Mass (Δ):57.177189±0.002210MeV
    Binding Energy:1829.048327±0.002235MeV
    β- Decay Energy:-1.508387±0.004646MeV
"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: 5/2+
  • Half life: 29.1 years ( 9.17814×10+08 sec., λ = 7.55215×10-10 s-1)
  • Mode of decay:
    α
    to
    239
    94
    Pu
      (Q = 6.169 MeV)   Branch ratio: 99.71 %
  • Mode of decay:
    E.C.
    to
    243
    95
    Am
      (Q = 0.009 MeV)   Branch ratio: 0.29 %
  • Mode of decay: SF   Branch ratio: 5.3E-9 %

  • Possible parent nuclides:
    E.C. from
    243
    97
    Bk
    α from
    247
    98
    Cf
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)
Magnetic Dipole Moments and Electric Quadrupole Moments
Ex(kev)T1/2Spin    m(nm)    Q(b)    Ref. Std.MethodReference
028.5 y5/2+ 0.40(8) [241Am]EPRPL 44A 527 (73)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.