81-Tl-191
 basic

 element
81-thallium-191

  • Atomic Mass: 190.9718860 +- 0.0002340 amu #
  • Excess Mass: -26188.000 +- 218.000 keV #
  • Binding Energy: 1504440.000 +- 218.000 keV #
  • Beta Decay Energy: B- -5881.000 +- 306.000 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: (1/2+)
  • Half life: Unknown
  • Mode of decay: Electron capture to Hg-191
    • Decay energy: 4.490 MeV

    Meta state at 0.299 Mev
  • Spin: 9/2(-)
  • Half life: 5.22 min
  • Mode of decay: Electron capture to Hg-191
    • Decay energy: 4.789 MeV

  • Possible parent nuclides:
    Electron capture from Pb-191
    Alpha from Bi-195
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
02.2 m1/2+ +1.588(4) "[203,205Tl]"CFBLSZP A341 475 (92)
2995.2 m9/2- +3.880(7) "[203,205Tl]"CFBLSZP A341 475 (92)
+3.903(5) "[203,205Tl]"CFBLSPR C36 2560 (87)
-2.23(2) "[203,205Tl]"CFBLSZP A341 475 (92)
-2.28(3) CFBLSPR C36 2560 (87)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.