Basic Info

Fission Yield


element
Information about Selenium-91:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:90.945370±0.000540amu #
    Excess Mass (Δ):-50.888000±0.503000MeV #
    Binding Energy:758.778000±0.503000MeV #
    β- Decay Energy:10.623000±0.508000MeV #
"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: 0.27 s ( 0.27 sec., λ = 2.56721 s-1)
  • Mode of decay: β- to
    91
    35
    Br
      (Q = 10.700 MeV)
  • Mode of decay: β- +
    1
    0
    n to
    90
    35
    Br
      (Q = 5.700 MeV)   Branch ratio: 21.00 %
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)