|- - peak - -|   | - - - fit - - - - - - |                ROI
  Energy  counts   Energy    FWHM,error(eV)      E/dE    counts      acf     acf_err
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 0.827282    13   0.827388   0.742   0.116      1115.2      78    0.099606  0.025905  
 1.02360     13   1.02373    1.371   0.228       746.5      80    0.085000  0.021736  
 1.35592     12   1.35567    2.074   0.439       653.5      69    0.077505  0.022743  
 1.47689     10   1.47663    2.313   0.752       638.5      45    0.100247  0.036968  
 1.87028     10   1.86967    3.480   1.003       537.3      57    0.095722  0.029567