84-Po-201
 basic
 element
84-polonium-201
  • Atomic Mass: 200.9822090 +- 0.0001100 amu #
  • Excess Mass: -16572.000 +- 102.000 keV #
  • Binding Energy: 1573191.000 +- 102.000 keV #
  • Beta Decay Energy: B- -5848.000 +- 263.000 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: 15.3 min
  • Mode of decay: Electron capture to Bi-201
    • Branch ratio: 98.40 %
    • Decay energy: 4.880 MeV
  • Mode of decay: Alpha to Pb-197
    • Branch ratio: 1.60 %
    • Decay energy: 5.799 MeV
    Meta state at 0.424 Mev
  • Spin: 13/2+
  • Half life: 8.9 min
  • Mode of decay: IT
    • Branch ratio: 56.00 %
    • Decay energy: 0.424 MeV
  • Mode of decay: Electron capture to Bi-201
    • Branch ratio: 41.00 %
    • Decay energy: 5.304 MeV
  • Mode of decay: Alpha to Pb-197
    • Branch ratio: ~2.90 %
    • Decay energy: 6.223 MeV

  • Possible parent nuclides:
    Electron capture from At-201
    Alpha from Rn-205
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
015.3 m3/2- 0.94(8) NO/SJP G17 1673 (91)
4258.9 m13/2+ 1.00(7) NO/SJP G17 1673 (91)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.