89-Ac-227
 basic
 n-XS summary
 XS graphs

 element
89-actinium-227

  • Atomic Mass: 227.0277470 +- 0.0000029 amu
  • Excess Mass: 25846.141 +- 2.709 keV
  • Binding Energy: 1736714.684 +- 2.726 keV
  • Beta Decay Energy: B- 44.824 +- 0.830 keV
"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.
  • Spin: 3/2-
  • Half life: 21.773 years
  • Mode of decay: Beta to Th-227
    • Branch ratio: 98.62 %
    • Decay energy: 0.045 MeV
  • Mode of decay: Alpha to Fr-223
    • Branch ratio: 1.38 %
    • Decay energy: 5.042 MeV

  • Possible parent nuclides:
    Beta from Ra-227
    Alpha from Pa-231
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
021.77 y3/2- +1.1(1) OPR 98 1514 (55)/PR 111 1747 (58)
+1.7(2) OPR 98 1514 (55)/PR 111 1747 (58)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.