81-Tl-204
 basic
 XS graphs

 element
81-thallium-204

Thallium-204 measures the dust and pollutant levels on filter paper... and gauges the thickness of plastics, sheet metal, rubber, textiles and paper.
  • Atomic Mass: 203.9738486 +- 0.0000031 amu
  • Excess Mass: -24359.825 +- 2.933 keV
  • Binding Energy: 1607539.053 +- 2.946 keV
  • Beta Decay Energy: B- 763.718 +- 0.177 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: 2-
  • Half life: 3.78 years
  • Mode of decay: Beta to Pb-204
    • Branch ratio: 97.10 %
    • Decay energy: 0.764 MeV
  • Mode of decay: Electron capture to Hg-204
    • Branch ratio: 2.90 %
    • Decay energy: 0.347 MeV
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
03.78 y2- 0.09(1) ABHFI 1 437 (76)
110463 ms(7)+ +1.187(6) TDPADNP A195 577 (72)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.