Basic Info

n-XS summary


element
Information about Plutonium-239:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:239.052157±0.000002amu
    Excess Mass (Δ):48.583478±0.001971MeV
    Binding Energy:1806.921454±0.001998MeV
    β- Decay Energy:-0.802912±0.002011MeV
"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: 1/2+
  • Half life: 24110 years ( 7.60429×10+11 sec., λ = 9.11521×10-13 s-1)
  • Mode of decay:
    α
    to
    235
    92
    U
      (Q = 5.245 MeV)
  • Mode of decay: SF   Branch ratio: 3E-10 %

  • Possible parent nuclides:
    β- from
    239
    93
    Np
    E.C. from
    239
    95
    Am
    α from
    243
    96
    Cm
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
02.4x10*4y1/2+ +0.203(4) AB/DPL 16 71 (65)
83/2+ -2.319(7) a Mu-XPL 167B 383 (86)
570.10 ns5/2+ -3.345(13) PL 167B 383 (86)
767/2+ -3.83(3) PL 167B 383 (86)
2851.12 ns5/2+ -1.3(3) IPACPR C9 1515 (74)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.