element
Information about Tungsten-165:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:164.958336±0.000094amu
    Excess Mass (Δ):-38.809795±0.087322MeV
    Binding Energy:1312.683907±0.087323MeV
    β- Decay Energy:-8.117322±0.113395MeV
"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:

  • Half life: 5.1 s ( 5.1 sec., λ = 0.135911 s-1)
  • Mode of decay:
    E.C.
    to
    165
    73
    Ta
      (Q = 7.010 MeV)
  • Mode of decay:
    α
    to
    161
    72
    Hf
      (Q = 5.030 MeV)   Branch ratio: <0.20 %

  • Possible parent nuclides:
    E.C. from
    165
    75
    Re
    α from
    169
    76
    Os
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)