element
Information about Holmium-159:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:158.927709±0.000004amu
    Excess Mass (Δ):-67.339054±0.004116MeV
    Binding Energy:1298.261702±0.004122MeV
    β- Decay Energy:-2.768568±0.002000MeV
"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: 33.05 min ( 1983 sec., λ = 0.000349545 s-1)
  • Mode of decay:
    E.C.
    to
    159
    66
    Dy
      (Q = 1.838 MeV)
    Meta state at 0.206 Mev
  • Spin: 1/2+ 33.05
  • Half life: 8.30 s ( 8.3 sec., λ = 0.0835117 s-1)
  • Mode of decay: γ (IT)  (Q = 0.206 MeV)

  • Possible parent nuclides:
    E.C. from
    159
    68
    Er
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
035.05 m7/2- +4.28(3) [165Ho]LRIMSNP A504 549 (89)
3.19(13) st [165Ho]LRIMSNP A504 549 (89)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.