55-Cs-129
 basic
 fission yield
 XS graphs

 element
55-cesium-129

  • Atomic Mass: 128.9060634 +- 0.0000050 amu
  • Excess Mass: -87501.395 +- 4.642 keV
  • Binding Energy: 1085672.600 +- 4.645 keV
  • Beta Decay Energy: B- -2431.553 +- 11.326 keV
"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.
  • Spin: 1/2+
  • Half life: 32.06 h
  • Mode of decay: Electron capture to Xe-129
    • Decay energy: 1.196 MeV

  • Possible parent nuclides:
    Electron capture from Ba-129
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)
Magnetic Dipole Moments and Electric Quadrupole Moments
Ex(kev)T1/2Spin    m(nm)    Q(b)    Ref. Std.MethodReference
032.3 h1/2+ +1.491(8) [133Cs]ABLSNP A468 1 (87)
575734 ns11/2- +6.55(10) TDPADPR C18 2061 (78)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.