|- - peak - -|   | - - - fit - - - - - - |                ROI
  Energy  counts   Energy    FWHM,error(eV)      E/dE    counts      acf     acf_err
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 1.01117     10   1.01155    2.060   1.793       491.0      95    0.040886  0.010080  
 1.02296     54   1.02325    1.190   0.081       859.6     302    0.096443  0.013546  
 1.12518     11   1.12555    0.995   0.355      1130.9     141    0.035662  0.007050  
 1.21323     10   1.21281    1.927   0.642       629.5     139    0.031106  0.006102  
 1.27935     14   1.27940    0.833   0.222      1535.8     151    0.031358  0.006243  
 1.35420     11   1.35491    1.751   0.492       773.8     186    0.030003  0.004920  
 1.41096     11   1.41035    1.380   0.563      1022.1     162    0.029111  0.005105  
 1.47528     21   1.47536    2.480   0.363       594.8     239    0.037307  0.005908  
 1.74754     12   1.74934  * 3.141   1.778       556.9     224    0.026108  0.003846  
 1.84321     14   1.84255    2.978   0.752       618.7     229    0.027860  0.004166  
 2.00873     14   2.00931    3.359   0.824       598.1     219    0.028794  0.004462  
 2.05075     15   2.05089    1.882   0.487      1089.7     172    0.031842  0.005762