element
Information about Erbium-153:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:152.935093±0.000012amu
    Excess Mass (Δ):-60.460355±0.011189MeV
    Binding Energy:1242.172713±0.011190MeV
    β- Decay Energy:-6.459450±0.018682MeV
"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: 37.1 s ( 37.1 sec., λ = 0.0186832 s-1)
  • Mode of decay:
    α
    to
    149
    66
    Dy
      (Q = 4.803 MeV)   Branch ratio: 53.00 %
  • Mode of decay:
    E.C.
    to
    153
    67
    Ho
      (Q = 4.563 MeV)   Branch ratio: 47.00 %

  • Possible parent nuclides:
    E.C. from
    153
    69
    Tm
    α from
    157
    70
    Yb
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
037.1 s(7/2-) -0.934(5) [167Er]CFBLSCf85Bomb 175 (85)
-0.42(2) [167Er]CFBLSCf85Bomb 175 (85)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.