|- - peak - -|   | - - - fit - - - - - - |                ROI
  Energy  counts   Energy    FWHM,error(eV)      E/dE    counts      acf     acf_err
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 0.524042    15   0.524191   1.354   0.467       387.0     278    0.031701  0.004054  
 0.529930    11   0.534247 * 5.750   6.441        92.9     312    0.024244  0.002902  
 0.531451    21   0.531120   3.557   1.656       149.3     326    0.030844  0.003692  
 0.655049    15   0.655057   0.988   0.109       662.8     166    0.057265  0.009652  
 0.728976    35   0.729047   0.655   0.052      1112.2     571    0.039636  0.003629  
 0.741189    28   0.741077   0.870   0.066       851.9     229    0.075685  0.011169  
 0.773648    18   0.773543   0.685   0.110      1129.4     196    0.043888  0.007255  
 0.776652    18   0.776804   1.006   0.122       772.1     198    0.048056  0.007751  
 0.796068    12   0.795945   0.656   0.123      1214.0      77    0.078428  0.021015  
 0.814484    24   0.814777   0.974   0.098       836.4     252    0.048690  0.007272  
 0.828522    50   0.828312   1.086   0.056       762.8     489    0.060442  0.006247  
 0.874920    20   0.874871   1.029   0.146       850.1     175    0.057371  0.010575  
 0.923911    13   0.924289   0.963   0.251       960.1     148    0.038075  0.007450  
 1.02528     23   1.02490    2.174   0.194       471.4     229    0.055853  0.008261  
 1.33597     12   1.33616    2.551   0.449       523.7     120    0.050000  0.010661  
 1.35700     23   1.35728    1.952   0.240       695.3     169    0.059907  0.011308  
 1.47817     15   1.47857    3.678   0.551       402.0     125    0.059712  0.012235  
 1.87583     12   1.87482    5.589   1.207       335.5      98    0.059142  0.013757