234 U decay; t1/2 = 245 ky (t = 353 ky).

  1. 234U [a (+ g)] 230Th
g + c.e.(a) a
E(b) I(c) (c) Ic.e. E(b) I(c)
678.0 9.6 10-9 2.1 10-10 4109 6.7 10-8
624.0 7.6 10-9 3.9 10-8 "  
504.0 8.6 10-9 3.6 10-10 "  
635.0   1.3 10-7 4151 2.5 10-7
585.0 1.1 10-7 3.5 10-9 "  
510.0 1.4 10-7 1.8 10-9 4276 3.8 10-7
460.0 2.4 10-7 3.7 10-9 "  
121.0 3.8 10-4 0.0019 4604 0.0023
53.2 0.0015 0.347 4723 0.263
      4775 0.693

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) primaries
  6. 234U entry in KAERI nuclide chart