39-Y-91
 basic
 fission yield
 n-XS summary
 XS graphs

 element
39-yttrium-91

  • Atomic Mass: 90.9073034 +- 0.0000030 amu
  • Excess Mass: -86346.300 +- 2.805 keV
  • Binding Energy: 790324.893 +- 2.808 keV
  • Beta Decay Energy: B- 1544.833 +- 1.834 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: 58.51 d
  • Mode of decay: Beta to Zr-91
    • Decay energy: 1.544 MeV

    Meta state at 0.556 Mev
  • Spin: 9/2+
  • Half life: 49.71 min
  • Mode of decay: IT
    • Decay energy: 0.556 MeV
  • Mode of decay: Beta to Zr-91
    • Branch ratio: <1.50 %
    • Decay energy: 2.100 MeV

  • Possible parent nuclides:
    Beta from Sr-91
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
058.5 d1/2- 0.1641(8) [89Y]ABPR 128 1740 (62)
55649.7m9/2+ 5.96(4) NMR/ONPR C44 104 (91)
5.97(7) NMR/ONPRL 66 96 (91)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.