143
64
Gd
element 		Information about Gadolinium-143:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation
    Mass-Energy Data:

    Atomic Mass:142.926739±0.000215amu
    Excess Mass (Δ):-68.242511±0.200446MeV
    Binding Energy:1172.371055±0.200447MeV
    β- Decay Energy:-7.463000±0.448000MeV #
"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: (1/2)+
  • Half life: 39 s ( 39 sec., λ = 0.017773 s-1)
  • Mode of decay:
    E.C.
     to
    143
    63
    Eu
       (Q = 6.010 MeV)
    Meta state at 0.153 Mev
  • Spin: 11/2-) 39
  • Half life: 112 s ( 112 sec., λ = 0.00618881 s-1)
  • Mode of decay:
    E.C.
     to
    143
    63
    Eu
       (Q = 6.163 MeV)

  • Possible parent nuclides:
    E.C. from
    143
    65
    Tb
    E.C. +
    1
    1
    p+ from
    144
    66
    Dy
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)