158
67
Ho
element 		Information about Holmium-158:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation
    Mass-Energy Data:

    Atomic Mass:157.928946±0.000032amu
    Excess Mass (Δ):-66.186616±0.030220MeV
    Binding Energy:1289.037942±0.030221MeV
    β- Decay Energy:-0.900000±0.100000MeV #
"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: 5+
  • Half life: 11.3 min ( 678 sec., λ = 0.00102234 s-1)
  • Mode of decay:
    E.C.
     to
    158
    66
    Dy
       (Q = 4.230 MeV)
    Meta state at 0.067 Mev
  • Spin: 2- 11.3
  • Half life: 28 min ( 1680 sec., λ = 0.000412588 s-1)
  • Mode of decay: γ (IT)  (Q = 0.067 MeV)   Branch ratio: >81.00 %
  • Mode of decay:
    E.C.
     to
    158
    66
    Dy
       (Q = 4.297 MeV)   Branch ratio: <19.00 %
    Meta state at 0.180 Mev
  • Spin: (9+) 283
  • Half life: 21.3 min ( 1278 sec., λ = 0.000542369 s-1)
  • Mode of decay:
    E.C.
     to
    158
    66
    Dy
       (Q = 4.410 MeV)   Branch ratio: >=93.00 %
  • Mode of decay: γ (IT)  (Q = 0.180 MeV)   Branch ratio: <=7.00 %

  • Possible parent nuclides:
    E.C. from
    158
    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
011.3 m5+ +3.77(3) [165Ho]LRIMSNP A504 549 (89)
+4.1(4) st [165Ho]LRIMSNP A504 549 (89)
67.228 m2- +2.44(3) [165Ho]LRIMSNP A504 549 (89)
+1.6(2) 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.