Attached is a plot of the uncalibrated energy spectra taken with the 90 degree xray detector for 118Te (red) and 124Xe (blue).
Shown is the region covering the K-alpha and K-REC peaks.

Calculating the ratios (Te/Xe) for K_alpha and K-REC energies from theory one gets:

K_alpha (theory): 0.9236  
K-REC   (theory): 0.9308

Without energy calibration we get the following ratio (using channel numbers):

K_alpha (exp): 0.9293  
K-REC   (exp): 0.9344

Taking into account that the channel numbers are not calibrated, the agreement is still very good.

In summary we can be sure that we have 118Te stored at 7AMeV.