OXYGEN     12    24    36    48     60     72     84    96   108   120   132   144   156    168 

 5.0     15.0  14.0  11.0   8.3    7.2    6.4    5.2   6.5   6.0   6.4   7.3   8.5   8.6    9.0 
 7.0     42.0  35.0  33.0  28.0   23.0   22.0   17.0  16.0  20.0  23.0  25.0  29.0  33.0   36.0 
10.0     39.0  34.0  26.0  22.0   19.0   19.0   20.0  22.0  21.0  25.0  26.0  32.0  41.0   50.0   
15.0     11.0   8.6   6.2   3.8    3.5    2.9    3.2   3.5   3.8   4.1   3.8   4.8   6.4    8.0   

cross sections in unit of 10-19 cm2/sr