55-Cs-138
 basic
 fission yield

 element
55-cesium-138

  • Atomic Mass: 137.9110105 +- 0.0000103 amu
  • Excess Mass: -82893.139 +- 9.572 keV
  • Binding Energy: 1153706.249 +- 9.574 keV
  • Beta Decay Energy: B- 5374.034 +- 9.095 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: 3-
  • Half life: 33.41 min
  • Mode of decay: Beta to Ba-138
    • Decay energy: 5.373 MeV

    Meta state at 0.080 Mev
  • Spin: 6-
  • Half life: 2.91 min
  • Mode of decay: IT
    • Branch ratio: 81.00 %
    • Decay energy: 0.080 MeV
  • Mode of decay: Beta to Ba-138
    • Branch ratio: 19.00 %
    • Decay energy: 5.453 MeV

  • Possible parent nuclides:
    Beta from Xe-138
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
032.2 m3- +0.700(4) [133Cs]ABLSNP A367 1 (81)
+0.701(7) [133Cs]ABPS 19 516 (79)
+0.701(14) [133Cs]CFBLSZP A289 227 (79)
+0.13(2) st CFBLSZP A289 227 (79)
+0.12(2) st ABLSNP A367 1 (81)
802.9 m6- +1.713(9) [133Cs]ABLSNP A367 1 (81)
-0.40(3) ABLSNP A367 1 (81)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.