|- - peak - -|   | - - - fit - - - - - - |                ROI
  Energy  counts   Energy    FWHM,error(eV)      E/dE    counts      acf     acf_err
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 0.229375   332   0.229377   0.079   0.002      2918.2    1231    0.237832  0.014038  
 1.42908     11   1.45940  * 39.831  20.963       36.6     216    0.032407  0.004827  
 1.46167     13   1.44672  * 347.073 49.121        4.2    1559    0.075889  0.004788  
 1.49445    431   1.49858  * 16.583  0.272        90.4    5252    0.045725  0.001447  
 1.56315     21   1.54893  * 68.383  22.137       22.7     357    0.029965  0.003446