In the scheenshot attached, the LiF sample is the same but the number of signals are different and the amplitude. The LiF is the #2.

Therefore, according to the Emmanuel's plots, we were putting the LiF sample away from the detectors.

The runNumber 219135 corresponds to the LiF sample forward to the detector, and the runNumber 219167 corresponds to the LiF sample away from the detector.

edit: added screenshot of strip 5 amplitude spectrum from run 219167 where triton and alpha peaks are well separated.