Basic Info

Fission Yield

n-XS summary


element
Information about Strontium-87:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:86.908879±0.000002amu
    Excess Mass (Δ):-84.878358±0.002204MeV
    Binding Energy:757.354013±0.002208MeV
    β- Decay Energy:-1.861606±0.001366MeV
"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:

  • Atomic Percent Abundance: 7.00%
  • Spin: 9/2+
  • Stable Isotope
    Meta state at 0.388 Mev
  • Spin: 1/2-
  • Half life: 2.803 h ( 10090.8 sec., λ = 6.8691×10-05 s-1)
  • Mode of decay: γ (IT)  (Q = 0.389 MeV)   Branch ratio: 99.70 %
  • Mode of decay:
    E.C.
    to
    87
    37
    Rb
      (Q = 0.106 MeV)   Branch ratio: 0.30 %

  • Possible parent nuclides:
    β- from
    87
    37
    Rb
    E.C. from
    87
    39
    Y
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
0stable9/2+ -1.0928(7) [23Na]OPZP 249 205 (72)
-1.0936030(13) [2H]NZNat 29a 1763 (74)
+0.34(2) st ABPR A16 1371 (77)
3882.80 h1/2- +0.624(4) [87Sr]CFBLSPR C41 2883 (90)
+0.788(9) [87Sr]ABLRFSZP A326 493 (87)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.