element
Information about Samarium-135:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:134.932350±0.000540amu #
    Excess Mass (Δ):-63.016000±0.503000MeV #
    Binding Energy:1104.138000±0.503000MeV #
    β- Decay Energy:-8.728000±0.780000MeV #
"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: 2+,5/2+)
  • Half life: 10.3 s ( 10.3 sec., λ = 0.0672958 s-1)
  • Mode of decay:
    E.C.
    to
    135
    61
    Pm
      (Q = 7.200 MeV)
  • Mode of decay: E.C. +
    1
    1
    p+ to
    134
    60
    Nd
      (Q = 5.500 MeV)   Branch ratio: 0.02 %

  • Possible parent nuclides:
    E.C. from
    135
    63
    Eu
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)