element
Information about Neptunium-244:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:244.067850±0.000320amu #
    Excess Mass (Δ):63.202000±0.298000MeV #
    Binding Energy:1833.442000±0.298000MeV #
    β- Decay Energy:3.402000±0.298000MeV #
"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-)
  • Half life: 2.29 min ( 137.4 sec., λ = 0.00504474 s-1)
  • Mode of decay: β- to
    244
    94
    Pu
      (Q = 3.400 MeV)
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)