210 Bi decay; t1/2 = 5.013 d (t = 7.232 d).

  1. 210Bi [b (no g)] 210Po   (~ 100%)
  2. 210Bi [a (+ g)] 206Tl   (1.32 10-4%;   t1/2 = 10 ky)
g + c.e.(a) a b
E(b) I(c) (c) Ic.e. E(b) I(c) E(b) I(c)
          1162 0.956
305.0 5.4 10-7 2.1 10-7 4649 7.6 10-7    
266.0 4.4 10-7 7.2 10-8 4686 5.1 10-7    
206Tl decay:
1165.0   1.2 10-9     361.0 1.2 10-9
362.0 1.3 10-11 2.4 10-13     "  
803.0 7.0 10-11 7.2 10-13     723.0 7.0 10-11
          1526 1.3 10-6

Notes:

  1. c.e.: conversion electrons
  2. Energies in keV
  3. Intensities per `parent' decay of natural U (i.e. 0.956 238U, 0.044 235U)
  4. Data from compilations and amendments in Nuclear Data Sheets to Vol. 64 (1991)
  5. g and conversion electron intensities are totals from given level; part may be associated with different (lower energy) primarie
  6. 210Bi and 206Tl entry in KAERI nuclide chart