Basic Info

n-XS summary


element
Information about Neptunium-236:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:236.046560±0.000054amu
    Excess Mass (Δ):43.370097±0.050459MeV
    Binding Energy:1788.703219±0.050460MeV
    β- Decay Energy:0.476585±0.050389MeV
"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: (6-)
  • Half life: 154000 years ( 4.85716×10+12 sec., λ = 1.42706×10-13 s-1)
  • Mode of decay:
    E.C.
    to
    236
    92
    U
      (Q = 0.940 MeV)   Branch ratio: 87.30 %
  • Mode of decay:
    β-
    to
    236
    94
    Pu
      (Q = 0.490 MeV)   Branch ratio: 12.50 %
  • Mode of decay:
    α
    to
    232
    91
    Pa
      (Q = 5.020 MeV)   Branch ratio: 0.16 %
    Meta state at 0.060 Mev
  • Spin: 1 154000
  • Half life: 22.5 h ( 81000 sec., λ = 8.55737×10-06 s-1)
  • Mode of decay:
    E.C.
    to
    236
    92
    U
      (Q = 1.000 MeV)   Branch ratio: 52.00 %
  • Mode of decay:
    β-
    to
    236
    94
    Pu
      (Q = 0.550 MeV)   Branch ratio: 48.00 %

  • Possible parent nuclides:
    α from
    240
    95
    Am
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)