|- - peak - -|   | - - - fit - - - - - - |                ROI
  Energy  counts   Energy    FWHM,error(eV)      E/dE    counts      acf     acf_err
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 0.825767    16   0.825809   0.602   0.077      1370.8     136    0.068339  0.013093  
 1.02200     13   1.02205    1.423   0.206       718.2     135    0.051962  0.009750  
 1.35218     16   1.35218    1.279   0.185      1056.9     115    0.067524  0.014693  
 1.47246     12   1.47249    2.308   0.564       637.9      85    0.066298  0.017382  
 1.86490     11   1.86521    3.384   0.728       551.2      86    0.061655  0.015426