I am having some difficulty with X-ray fluorescence. I have a very simple test setup: throwing 100 keV photons at a piece of Tin. I record the energy deposit in the Tin, and I expect to see X-ray escape peaks at energies corresponding to 100 keV minus the fluorescent X-ray energies for Tin. The problem is that the code does not seem to be generating the X-ray corresponding to the first line of data in the G4EMLOW4.3/fluor/fl-tr-pr-50.dat file. The first few lines of the file look like this:

1            1            1            
5            0.248181     0.0250232    
6            0.464342     0.0252572    
10           0.0418921    0.0284306    
11           0.0813413    0.0284737
...


I see an escape peak corresponding to the 25.2572 keV X-ray, but not for the 25.0232 X-ray. This same behavior has been verified for other elements. If I add a dummy line to the file like this:

1            1            1   
0            0            0         
5            0.248181     0.0250232    
6            0.464342     0.0252572    
10           0.0418921    0.0284306    
11           0.0813413    0.0284737
...

then both X-ray escape peaks appear as I would expect. So, it seems the code is not reading or not using the first line of data in the data files.