77
32
Ge


Basic Info

Fission Yield

element 		Information about Germanium-77:

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

    Atomic Mass:76.923548±0.000002amu
    Excess Mass (Δ):-71.214138±0.001832MeV
    Binding Energy:667.670685±0.001835MeV
    β- Decay Energy:2.702040±0.002081MeV
"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: 7/2+
  • Half life: 11.30 h ( 40680 sec., λ = 1.7039×10-05 s-1)
  • Mode of decay:
    β-
     to
    77
    33
    As
       (Q = 2.702 MeV)
    Meta state at 0.159 Mev
  • Spin: 1/2- 11.30
  • Half life: 52.9 s ( 52.9 sec., λ = 0.013103 s-1)
  • Mode of decay:
    β-
     to
    77
    33
    As
       (Q = 2.862 MeV)   Branch ratio: 81.00 %
  • Mode of decay: γ (IT)  (Q = 0.160 MeV)   Branch ratio: 19.00 %

  • Possible parent nuclides:
    β- from
    77
    31
    Ga
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)