12B B- DECAY (20.20 MS 2)       I(MIN)=0.0010%                                 

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

 B-  1 MAX    3066.      300
       AVG    1350.      150   0.080   20   0.0023
 B-  2 MAX    5708.2      25
       AVG    2644.2      13   1.5      3   0.0845
 B-  3 MAX    8919.7      14
       AVG    4234.6       7   1.23     5   0.111 
 B-  4 MAX   13353.3      13
       AVG    6438.6       7  97.2      3  13.33  
 TOTAL B-
       AVG    6350.5      13 100.0      5  13.53  
  

 ----------  --------------- ------------ --------