|- - peak - -|   | - - - fit - - - - - - |                ROI
  Energy  counts   Energy    FWHM,error(eV)      E/dE    counts      acf     acf_err
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 0.653346    29   0.653288   0.657   0.041       994.9     460    0.042231  0.004275  
 0.723923    13   0.723939   0.722   0.104      1002.4     178    0.042230  0.007053  
 0.726131    21   0.725981   0.729   0.093       996.3     209    0.044939  0.007166  
 0.737975    17   0.737836   0.780   0.096       945.7     189    0.044372  0.007227  
 0.811133    10   0.811408   0.858   0.142       946.1     126    0.048879  0.009640  
 0.825464    33   0.825470   0.957   0.067       862.8     416    0.041940  0.004583  
 0.871967    11   0.872287   1.485   0.302       587.4     155    0.037669  0.006616  
 0.916402    18   0.916430   1.355   0.162       676.3     252    0.037793  0.005315  
 0.965235    16   0.965416   0.760   0.150      1271.0     366    0.025740  0.002845  
 1.00846     26   1.00834    1.532   0.134       658.2     393    0.034102  0.003825  
 1.02165     42   1.02131    1.482   0.085       689.0     529    0.043700  0.004202  
 1.05274     16   1.05261    4.401   2.346       239.2     293    0.027502  0.003523  
 1.08424     11   1.08348    2.465   0.666       439.5     122    0.039909  0.008283  
 1.30774     10   1.30774    2.939   0.742       444.9     150    0.036978  0.006629  
 1.35194     17   1.35153    2.339   0.335       577.9     220    0.038760  0.006025  
 1.47195     27   1.47185    3.109   0.260       473.5     359    0.039455  0.004677  
 1.83908     11   1.83941    3.672   1.081       500.9     123    0.038006  0.008073  
 1.86515     17   1.86348    3.976   0.500       468.7     204    0.045511  0.007270  
 2.00423     11   2.00535    4.814   0.800       416.6     142    0.044932  0.008502