94-Pu-239
 basic
 n-XS summary
 XS graphs

 element
94-plutonium-239

  • Atomic Mass: 239.0521565 +- 0.0000021 amu
  • Excess Mass: 48583.478 +- 1.971 keV
  • Binding Energy: 1806921.454 +- 1.998 keV
  • Beta Decay Energy: B- -802.912 +- 2.011 keV
"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.
  • Spin: 1/2+
  • Half life: 24110 years
  • Mode of decay: Alpha to U-235
    • Decay energy: 5.245 MeV
  • Mode of decay: SF
    • Branch ratio: 3E-10 %

  • Possible parent nuclides:
    Beta from Np-239
    Electron capture from Am-239
    Alpha from Cm-243
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.