|- - peak - -|   | - - - fit - - - - - - |                ROI
  Energy  counts   Energy    FWHM,error(eV)      E/dE    counts      acf     acf_err
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 0.653503    29   0.653516   0.713   0.046       917.2     468    0.039749  0.003953  
 0.724011    15   0.724180   0.653   0.082      1108.7     175    0.047967  0.008170  
 0.726167    17   0.726149   0.703   0.091      1033.0     206    0.043265  0.006832  
 0.738122    15   0.738049   0.687   0.082      1073.7     193    0.044968  0.007206  
 0.825581    34   0.825688   1.017   0.069       812.0     422    0.042946  0.004696  
 0.872175    15   0.872570   1.929   0.462       452.3     166    0.040572  0.007135  
 0.916548    19   0.916837   1.346   0.162       681.0     263    0.037835  0.005289  
 0.964653    14   0.965625 * 3.534   1.009       273.3     354    0.026605  0.002993  
 1.00854     23   1.00876    1.921   0.196       525.2     400    0.033813  0.003745  
 1.02141     31   1.02171    1.515   0.087       674.6     540    0.038841  0.003646  
 1.05193     12   1.05301  * 3.371   0.695       312.3     278    0.028699  0.003645  
 1.08469     14   1.08392    2.113   0.517       513.0     116    0.046671  0.010548  
 1.35135     17   1.35194    1.996   0.274       677.4     226    0.038218  0.005883  
 1.47299     25   1.47230    3.062   0.237       480.8     363    0.040457  0.004702  
 1.83969     10   1.83972    3.788   0.931       485.6     124    0.039542  0.008239  
 1.86543     15   1.86437    4.042   0.521       461.2     205    0.041237  0.006459  
 2.00496     12   2.00536    5.679   1.017       353.1     139    0.039698  0.007671