element
Information about Samarium-141:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:140.918469±0.000013amu
    Excess Mass (Δ):-75.946081±0.012178MeV
    Binding Energy:1165.496685±0.012180MeV
    β- Decay Energy:-5.977727±0.025584MeV
"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: 1/2+
  • Half life: 10.2 min ( 612 sec., λ = 0.00113259 s-1)
  • Mode of decay:
    E.C.
    to
    141
    61
    Pm
      (Q = 4.543 MeV)
    Meta state at 0.176 Mev
  • Spin: 11/2- 10.2
  • Half life: 22.6 min ( 1356 sec., λ = 0.00051117 s-1)
  • Mode of decay:
    E.C.
    to
    141
    61
    Pm
      (Q = 4.719 MeV)   Branch ratio: 99.69 %
  • Mode of decay: γ (IT)  (Q = 0.176 MeV)   Branch ratio: 0.31 %

  • Possible parent nuclides:
    E.C. from
    141
    63
    Eu
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
010.2 m1/2+ -0.74(2) "[145,7,9Sm]"LRIMSJP G18 1177 (92)
17622.6 m11/2- -0.84(2) "[145,7,9Sm]"LRIMSJP G18 1177 (92)
0.87(15) NO/SCf87Melb 76 (87)
+1.6(5) st "[145,7,9Sm]"LRIMSJP G18 1177 (92)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.