63-Eu-149
 basic
 fission yield
 XS graphs

 element
63-europium-149

  • Atomic Mass: 148.9179259 +- 0.0000051 amu
  • Excess Mass: -76451.500 +- 4.708 keV
  • Binding Energy: 1229790.334 +- 4.713 keV
  • Beta Decay Energy: B- -1313.877 +- 4.190 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: 5/2+
  • Half life: 93.1 d
  • Mode of decay: Electron capture to Sm-149
    • Decay energy: 0.692 MeV

  • Possible parent nuclides:
    Electron capture from Gd-149
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
093.1 d5/2+ +3.576(10) [151 Eu]CFBLSYadF 44 1134 (86)
+3.565(6) [151 Eu]CFBLSZP A321 35 (85)
2.5(5) NO/SHFI 15 73 (83)
+0.70(8) [151 Eu]CFBLSYadF 44 1134 (86)
+0.75(2) [151 Eu]CFBLSZP A321 35 (85)
4972.43 ms11/2- +7.0(3) [19F 197]TDPADNP A350 61 (80)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.