|- - peak - -|   | - - - fit - - - - - - |                ROI
  Energy  counts   Energy    FWHM,error(eV)      E/dE    counts      acf     acf_err
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 0.825333    11   0.825408   0.518   0.098      1592.6      73    0.093263  0.024602  
 1.00837     15   1.00824    0.774   0.117      1302.0     121    0.061130  0.012773  
 1.02124     22   1.02138    0.742   0.074      1376.9     154    0.081633  0.014705  
 1.47132     13   1.47152    2.008   0.319       732.7     113    0.066333  0.013991  
 1.86310     12   1.86344    2.192   0.355       850.0      86    0.087345  0.021023  
 2.00547     10   2.00500    3.622   0.886       553.6      73    0.075624  0.020601