209PB B- DECAY (3.253 H 14)     I(MIN)=0.0010%                                 

 Radiation        Energy       Intensity   (G-Rad 
    Type           (keV)          (%)      uCi-h) 
 ----------  --------------- ------------ --------

 B-  1 MAX   644.4        11
       AVG   197.5         4 100.0          0.421 
  

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