Iodine and Palladium Seed Decay
 

Here are the lives of both seeds.


The life of Iodine 125 seeds is as follows based on a half life of 59.41 days and rounded to the nearest whole number.


The life of the Pd seeds is as follows based on  a half life of 16.99 days and rounded to the nearest whole number.


                          Pd 103                  I-125


Week          % Radiation          %Radiation


  1                         75                        92


  2                         57                        85


  3                         42                        78


  4                         32                        72


  5                         24                        66


  6                         18                        61


  7                         14                        56


  8                         10                        52


  9                         8                          48


10                        6                          44


11                        4                          40


12                        3                          38


13                        2                          35


14                        2                          32


15                        1                          29


16                        1                          27


Months


  4                                                     24


  5                                                     17


  6                                                     12


  7                                                     8


  8                                                     6


  9                                                     4


10                                                    3


11                                                    2


12                                                    1



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