isotope data format

example

 ne20      20.000  10  10   0.0    -7.042                                 
     1.00     1.00     1.00     1.00     1.00     1.00     1.00     1.00  
     1.00     1.00     1.00     1.00     1.00     1.00     1.01     1.02  
     1.04     1.07     1.11     1.22     1.34     1.49     1.66     1.85  
     
name       A       Z    N     spin   mass_excess
      partition function coefficients for REACLIB
      
you can add new entries simply by editing the isotopes.data file
just make sure you have exactly the right format!


